diff --git a/.github/auto-comment.yml b/.github/auto-comment.yml
deleted file mode 100644
index 520b3ce3..00000000
--- a/.github/auto-comment.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-# Comment to a new issue.
-issuesOpened: >
-  If this is a bug report, please upgrade to the latest code and try again:
-  
-  如果有 bug, 请先更新到最新版试试:
-  
-  ```
-  acme.sh --upgrade
-  ```
-  
-  please also provide the log with `--debug 2`.
-  
-  同时请提供调试输出 `--debug 2`
-  
-  see: https://github.com/acmesh-official/acme.sh/wiki/How-to-debug-acme.sh
-  
-  Without `--debug 2` log, your issue will NEVER get replied.
-  
-  没有调试输出, 你的 issue 不会得到任何解答.
-
-
-pullRequestOpened: >
-  First, NEVER send a PR to `master` branch, it will NEVER be accepted. Please send to the `dev` branch instead.
-  
-  If this is a PR to support new DNS API or new notification API, please read this guide first:
-  https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide
-  
-  Please check the guide items one by one.
-  
-  Then add your usage here:
-  https://github.com/acmesh-official/acme.sh/wiki/dnsapi
-   
-  Or some other wiki pages:
-  
-  https://github.com/acmesh-official/acme.sh/wiki/deployhooks
-  
-  https://github.com/acmesh-official/acme.sh/wiki/notify
-  
-
-
diff --git a/.github/workflows/DNS.yml b/.github/workflows/DNS.yml
index ed0426ad..b00ef263 100644
--- a/.github/workflows/DNS.yml
+++ b/.github/workflows/DNS.yml
@@ -59,7 +59,7 @@ jobs:
       run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
     - name: Set env file
       run: |
-        cd ../acmetest 
+        cd ../acmetest
         if [ "${{ secrets.TokenName1}}" ] ; then
           echo "${{ secrets.TokenName1}}=${{ secrets.TokenValue1}}" >> env.list
         fi
@@ -75,7 +75,7 @@ jobs:
         if [ "${{ secrets.TokenName5}}" ] ; then
           echo "${{ secrets.TokenName5}}=${{ secrets.TokenValue5}}" >> env.list
         fi
-        echo "TEST_DNS_NO_WILDCARD" >> env.list 
+        echo "TEST_DNS_NO_WILDCARD" >> env.list
         echo "TEST_DNS_SLEEP" >> env.list
     - name: Run acmetest
       run: cd ../acmetest && ./rundocker.sh  testall
@@ -184,7 +184,7 @@ jobs:
     - uses: actions/checkout@v2
     - name: Clone acmetest
       run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - uses: vmactions/freebsd-vm@v0.1.2
+    - uses: vmactions/freebsd-vm@v0.1.4
       with:
         envs: 'TEST_DNS TestingDomain TEST_DNS_NO_WILDCARD TEST_DNS_SLEEP CASE TEST_LOCAL DEBUG ${{ secrets.TokenName1}} ${{ secrets.TokenName2}} ${{ secrets.TokenName3}} ${{ secrets.TokenName4}} ${{ secrets.TokenName5}}'
         prepare: pkg install -y socat curl
@@ -226,8 +226,10 @@ jobs:
     - uses: vmactions/solaris-vm@v0.0.3
       with:
         envs: 'TEST_DNS TestingDomain TEST_DNS_NO_WILDCARD TEST_DNS_SLEEP CASE TEST_LOCAL DEBUG ${{ secrets.TokenName1}} ${{ secrets.TokenName2}} ${{ secrets.TokenName3}} ${{ secrets.TokenName4}} ${{ secrets.TokenName5}}'
-        prepare: pkgutil -y -i socat curl
+        prepare: pkgutil -y -i socat
         run: |
+          pkg set-mediator -v -I default@1.1 openssl
+          export PATH=/usr/gnu/bin:$PATH
           if [ "${{ secrets.TokenName1}}" ] ; then
             export ${{ secrets.TokenName1}}=${{ secrets.TokenValue1}}
           fi
@@ -245,5 +247,3 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-
-        
diff --git a/.github/workflows/FreeBSD.yml b/.github/workflows/FreeBSD.yml
new file mode 100644
index 00000000..6a82156d
--- /dev/null
+++ b/.github/workflows/FreeBSD.yml
@@ -0,0 +1,60 @@
+name: FreeBSD
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/FreeBSD.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/FreeBSD.yml'
+
+
+jobs:
+  FreeBSD:
+    strategy:
+      matrix:
+        include:
+         - TEST_ACME_Server: "LetsEncrypt.org_test"
+           CA_ECDSA: ""
+           CA: ""
+           CA_EMAIL: ""
+         - TEST_ACME_Server: "ZeroSSL.com"
+           CA_ECDSA: "ZeroSSL ECC Domain Secure Site CA"
+           CA: "ZeroSSL RSA Domain Secure Site CA"
+           CA_EMAIL: "githubtest@acme.sh"
+    runs-on: macos-latest
+    env:
+      TEST_LOCAL: 1
+      TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}
+      CA_ECDSA: ${{ matrix.CA_ECDSA }}
+      CA: ${{ matrix.CA }}
+      CA_EMAIL: ${{ matrix.CA_EMAIL }}
+    steps:
+    - uses: actions/checkout@v2
+    - uses: vmactions/cf-tunnel@v0.0.2
+      id: tunnel
+      with:
+        protocol: http
+        port: 8080
+    - name: Set envs
+      run: echo "TestingDomain=${{steps.tunnel.outputs.server}}" >> $GITHUB_ENV
+    - name: Clone acmetest
+      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
+    - uses: vmactions/freebsd-vm@v0.1.4
+      with:
+        envs: 'TEST_LOCAL TestingDomain TEST_ACME_Server CA_ECDSA CA CA_EMAIL'
+        nat: |
+          "8080": "80"
+        prepare: pkg install -y socat curl
+        usesh: true
+        run: |
+          cd ../acmetest \
+          && ./letest.sh
+
+
diff --git a/.github/workflows/LetsEncrypt.yml b/.github/workflows/LetsEncrypt.yml
deleted file mode 100644
index 7c398c09..00000000
--- a/.github/workflows/LetsEncrypt.yml
+++ /dev/null
@@ -1,147 +0,0 @@
-name: LetsEncrypt
-on:
-  push:
-    branches:
-      - '*'
-    paths:
-      - '**.sh'
-      - '**.yml'
-  pull_request:
-    branches:
-      - dev
-    paths:
-      - '**.sh'
-      - '**.yml'
-
-
-jobs:
-  CheckToken:
-    runs-on: ubuntu-latest
-    outputs:
-      hasToken: ${{ steps.step_one.outputs.hasToken }}
-    env: 
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-    steps:
-      - name: Set the value
-        id: step_one
-        run: |
-          if [ "$NGROK_TOKEN" ] ; then
-            echo "::set-output name=hasToken::true"
-          else
-            echo "::set-output name=hasToken::false"
-          fi
-      - name: Check the value
-        run: echo ${{ steps.step_one.outputs.hasToken }}
-
-  Ubuntu:
-    runs-on: ubuntu-latest
-    needs: CheckToken
-    if: "contains(needs.CheckToken.outputs.hasToken, 'true')"
-    env:
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-      TEST_LOCAL: 1
-    steps:
-    - uses: actions/checkout@v2
-    - name: Install tools
-      run: sudo apt-get install -y socat
-    - name: Clone acmetest
-      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - name: Run acmetest
-      run: cd ../acmetest && sudo --preserve-env ./letest.sh
-
-  MacOS:
-    runs-on: macos-latest
-    needs: Ubuntu
-    env:
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-      TEST_LOCAL: 1
-    steps:
-    - uses: actions/checkout@v2
-    - name: Install tools
-      run:  brew install socat
-    - name: Clone acmetest
-      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - name: Run acmetest
-      run: cd ../acmetest && sudo --preserve-env ./letest.sh
-
-  Windows:
-    runs-on: windows-latest
-    needs: MacOS
-    env:
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-      TEST_LOCAL: 1
-      #The 80 port is used by Windows server, we have to use a custom port, ngrok will also use this port.
-      Le_HTTPPort: 8888
-    steps:
-    - name: Set git to use LF
-      run: |
-          git config --global core.autocrlf false
-    - uses: actions/checkout@v2
-    - name: Install cygwin base packages with chocolatey
-      run: |
-          choco config get cacheLocation
-          choco install --no-progress cygwin
-      shell: cmd
-    - name: Install cygwin additional packages
-      run: |
-          C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -s http://mirrors.kernel.org/sourceware/cygwin/ -P socat,curl,cron,unzip,git
-      shell: cmd
-    - name: Set ENV
-      shell: cmd
-      run: |
-          echo PATH=C:\tools\cygwin\bin;C:\tools\cygwin\usr\bin >> %GITHUB_ENV%
-    - name: Check ENV
-      shell: cmd
-      run: |
-          echo "PATH=%PATH%"
-    - name: Clone acmetest
-      shell: cmd
-      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - name: Run acmetest
-      shell: cmd
-      run: cd ../acmetest && bash.exe -c ./letest.sh
-
-  FreeBSD:
-    runs-on: macos-latest
-    needs: Windows
-    env:
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-      TEST_LOCAL: 1
-    steps:
-    - uses: actions/checkout@v2
-    - name: Clone acmetest
-      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - uses: vmactions/freebsd-vm@v0.1.2
-      with:
-        envs: 'NGROK_TOKEN TEST_LOCAL'
-        prepare: pkg install -y socat curl
-        usesh: true
-        run: |
-          cd ../acmetest && ./letest.sh
-
-  Solaris:
-    runs-on: macos-latest
-    needs: FreeBSD
-    env:
-      NGROK_TOKEN : ${{ secrets.NGROK_TOKEN }}
-      TEST_LOCAL: 1
-    steps:
-    - uses: actions/checkout@v2
-    - uses: vmactions/ngrok-tunnel@v0.0.1
-      id: ngrok
-      with:
-        protocol: http
-        port: 8080
-    - name: Set envs
-      run: echo "TestingDomain=${{steps.ngrok.outputs.server}}" >> $GITHUB_ENV
-    - name: Clone acmetest
-      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
-    - uses: vmactions/solaris-vm@v0.0.3
-      with:
-        envs: 'TEST_LOCAL TestingDomain'
-        nat: |
-          "8080": "80"
-        prepare: pkgutil -y -i socat curl
-        run: |
-          cd ../acmetest && ./letest.sh
-
diff --git a/.github/workflows/Linux.yml b/.github/workflows/Linux.yml
new file mode 100644
index 00000000..c4ec07c4
--- /dev/null
+++ b/.github/workflows/Linux.yml
@@ -0,0 +1,40 @@
+name: Linux
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/Linux.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/Linux.yml'
+
+
+
+jobs:
+  Linux:
+    strategy:
+      matrix:
+        os: ["ubuntu:latest", "debian:latest", "almalinux:latest", "fedora:latest", "centos:latest", "opensuse/leap:latest", "alpine:latest", "oraclelinux:8", "kalilinux/kali", "archlinux:latest", "mageia", "gentoo/stage3-amd64", "clearlinux:latest"]
+    runs-on: ubuntu-latest
+    env:
+      TEST_LOCAL: 1
+    steps:
+    - uses: actions/checkout@v2
+    - name: Clone acmetest
+      run: |
+          cd .. \
+          && git clone https://github.com/acmesh-official/acmetest.git \
+          && cp -r acme.sh acmetest/
+    - name: Run acmetest
+      run: |
+          cd ../acmetest \
+          && ./rundocker.sh  testplat ${{ matrix.os }}
+
+
+
diff --git a/.github/workflows/MacOS.yml b/.github/workflows/MacOS.yml
new file mode 100644
index 00000000..85ec7527
--- /dev/null
+++ b/.github/workflows/MacOS.yml
@@ -0,0 +1,52 @@
+name: MacOS
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/MacOS.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/MacOS.yml'
+
+
+jobs:
+  MacOS:
+    strategy:
+      matrix:
+        include:
+         - TEST_ACME_Server: "LetsEncrypt.org_test"
+           CA_ECDSA: ""
+           CA: ""
+           CA_EMAIL: ""
+         - TEST_ACME_Server: "ZeroSSL.com"
+           CA_ECDSA: "ZeroSSL ECC Domain Secure Site CA"
+           CA: "ZeroSSL RSA Domain Secure Site CA"
+           CA_EMAIL: "githubtest@acme.sh"
+    runs-on: macos-latest
+    env:
+      TEST_LOCAL: 1
+      TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}
+      CA_ECDSA: ${{ matrix.CA_ECDSA }}
+      CA: ${{ matrix.CA }}
+      CA_EMAIL: ${{ matrix.CA_EMAIL }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install tools
+      run:  brew install socat
+    - name: Clone acmetest
+      run: |
+          cd .. \
+          && git clone https://github.com/acmesh-official/acmetest.git \
+          && cp -r acme.sh acmetest/
+    - name: Run acmetest
+      run: |
+          cd ../acmetest \
+          && sudo --preserve-env ./letest.sh
+
+
diff --git a/.github/workflows/PebbleStrict.yml b/.github/workflows/PebbleStrict.yml
index 976e5373..f7907d8b 100644
--- a/.github/workflows/PebbleStrict.yml
+++ b/.github/workflows/PebbleStrict.yml
@@ -4,14 +4,14 @@ on:
     branches:
       - '*'
     paths:
-      - '**.sh'
-      - '**.yml'
+      - '*.sh'
+      - '.github/workflows/PebbleStrict.yml'
   pull_request:
     branches:
       - dev
     paths:
-      - '**.sh'
-      - '**.yml'
+      - '*.sh'
+      - '.github/workflows/PebbleStrict.yml'
 
 jobs:
   PebbleStrict:
@@ -19,7 +19,7 @@ jobs:
     env:
       TestingDomain: example.com
       TestingAltDomains: www.example.com
-      ACME_DIRECTORY: https://localhost:14000/dir
+      TEST_ACME_Server: https://localhost:14000/dir
       HTTPS_INSECURE: 1
       Le_HTTPPort: 5002
       TEST_LOCAL: 1
diff --git a/.github/workflows/Solaris.yml b/.github/workflows/Solaris.yml
new file mode 100644
index 00000000..9d1c46ac
--- /dev/null
+++ b/.github/workflows/Solaris.yml
@@ -0,0 +1,58 @@
+name: Solaris
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/Solaris.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/Solaris.yml'
+
+
+jobs:
+  Solaris:
+    strategy:
+      matrix:
+        include:
+         - TEST_ACME_Server: "LetsEncrypt.org_test"
+           CA_ECDSA: ""
+           CA: ""
+           CA_EMAIL: ""
+         - TEST_ACME_Server: "ZeroSSL.com"
+           CA_ECDSA: "ZeroSSL ECC Domain Secure Site CA"
+           CA: "ZeroSSL RSA Domain Secure Site CA"
+           CA_EMAIL: "githubtest@acme.sh"
+    runs-on: macos-latest
+    env:
+      TEST_LOCAL: 1
+      TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}
+      CA_ECDSA: ${{ matrix.CA_ECDSA }}
+      CA: ${{ matrix.CA }}
+      CA_EMAIL: ${{ matrix.CA_EMAIL }}
+    steps:
+    - uses: actions/checkout@v2
+    - uses: vmactions/cf-tunnel@v0.0.2
+      id: tunnel
+      with:
+        protocol: http
+        port: 8080
+    - name: Set envs
+      run: echo "TestingDomain=${{steps.tunnel.outputs.server}}" >> $GITHUB_ENV
+    - name: Clone acmetest
+      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
+    - uses: vmactions/solaris-vm@v0.0.3
+      with:
+        envs: 'TEST_LOCAL TestingDomain TEST_ACME_Server CA_ECDSA CA CA_EMAIL'
+        nat: |
+          "8080": "80"
+        prepare: pkgutil -y -i socat curl
+        run: |
+          cd ../acmetest \
+          && ./letest.sh
+
diff --git a/.github/workflows/Ubuntu.yml b/.github/workflows/Ubuntu.yml
new file mode 100644
index 00000000..af74965a
--- /dev/null
+++ b/.github/workflows/Ubuntu.yml
@@ -0,0 +1,54 @@
+name: Ubuntu
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/Ubuntu.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/Ubuntu.yml'
+
+
+jobs:
+  Ubuntu:
+    strategy:
+      matrix:
+        include:
+         - TEST_ACME_Server: "LetsEncrypt.org_test"
+           CA_ECDSA: ""
+           CA: ""
+           CA_EMAIL: ""
+         - TEST_ACME_Server: "ZeroSSL.com"
+           CA_ECDSA: "ZeroSSL ECC Domain Secure Site CA"
+           CA: "ZeroSSL RSA Domain Secure Site CA"
+           CA_EMAIL: "githubtest@acme.sh"
+
+    runs-on: ubuntu-latest
+    env:
+      TEST_LOCAL: 1
+      TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}
+      CA_ECDSA: ${{ matrix.CA_ECDSA }}
+      CA: ${{ matrix.CA }}
+      CA_EMAIL: ${{ matrix.CA_EMAIL }}
+      NO_ECC_384: ${{ matrix.NO_ECC_384 }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install tools
+      run: sudo apt-get install -y socat
+    - name: Clone acmetest
+      run: |
+          cd .. \
+          && git clone https://github.com/acmesh-official/acmetest.git \
+          && cp -r acme.sh acmetest/
+    - name: Run acmetest
+      run: |
+          cd ../acmetest \
+          && sudo --preserve-env ./letest.sh
+
+
diff --git a/.github/workflows/Windows.yml b/.github/workflows/Windows.yml
new file mode 100644
index 00000000..8c8e2842
--- /dev/null
+++ b/.github/workflows/Windows.yml
@@ -0,0 +1,70 @@
+name: Windows
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - '*.sh'
+      - '.github/workflows/Windows.yml'
+
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - '*.sh'
+      - '.github/workflows/Windows.yml'
+
+
+jobs:
+  Windows:
+    strategy:
+      matrix:
+        include:
+         - TEST_ACME_Server: "LetsEncrypt.org_test"
+           CA_ECDSA: ""
+           CA: ""
+           CA_EMAIL: ""
+         - TEST_ACME_Server: "ZeroSSL.com"
+           CA_ECDSA: "ZeroSSL ECC Domain Secure Site CA"
+           CA: "ZeroSSL RSA Domain Secure Site CA"
+           CA_EMAIL: "githubtest@acme.sh"
+    runs-on: windows-latest
+    env:
+      TEST_ACME_Server: ${{ matrix.TEST_ACME_Server }}
+      CA_ECDSA: ${{ matrix.CA_ECDSA }}
+      CA: ${{ matrix.CA }}
+      CA_EMAIL: ${{ matrix.CA_EMAIL }}
+      TEST_LOCAL: 1
+      #The 80 port is used by Windows server, we have to use a custom port, tunnel will also use this port.
+      Le_HTTPPort: 8888
+    steps:
+    - name: Set git to use LF
+      run: |
+          git config --global core.autocrlf false
+    - uses: actions/checkout@v2
+    - name: Install cygwin base packages with chocolatey
+      run: |
+          choco config get cacheLocation
+          choco install --no-progress cygwin
+      shell: cmd
+    - name: Install cygwin additional packages
+      run: |
+          C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -s http://mirrors.kernel.org/sourceware/cygwin/ -P socat,curl,cron,unzip,git
+      shell: cmd
+    - name: Set ENV
+      shell: cmd
+      run: |
+          echo PATH=C:\tools\cygwin\bin;C:\tools\cygwin\usr\bin >> %GITHUB_ENV%
+    - name: Check ENV
+      shell: cmd
+      run: |
+          echo "PATH=%PATH%"
+    - name: Clone acmetest
+      shell: cmd
+      run: cd .. && git clone https://github.com/acmesh-official/acmetest.git  && cp -r acme.sh acmetest/
+    - name: Run acmetest
+      shell: cmd
+      run: cd ../acmetest && bash.exe -c ./letest.sh
+
+
+
diff --git a/.github/workflows/dockerhub.yml b/.github/workflows/dockerhub.yml
index 238fde3a..0c3aec0a 100644
--- a/.github/workflows/dockerhub.yml
+++ b/.github/workflows/dockerhub.yml
@@ -6,6 +6,11 @@ on:
       - '*'
     tags:
       - '*'
+    paths:
+      - '**.sh'
+      - "Dockerfile"
+      - '.github/workflows/dockerhub.yml'
+
     
 jobs:
   CheckToken:
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index b22a2fd8..940a187d 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -5,13 +5,13 @@ on:
       - '*'
     paths:
       - '**.sh'
-      - '**.yml'
+      - '.github/workflows/shellcheck.yml'
   pull_request:
     branches:
       - dev
     paths:
       - '**.sh'
-      - '**.yml'
+      - '.github/workflows/shellcheck.yml'
 
 jobs:
   ShellCheck:
diff --git a/Dockerfile b/Dockerfile
index 4618efaf..c42f4f39 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,6 @@
 FROM alpine:3.12
 
-RUN apk update -f \
-  && apk --no-cache add -f \
+RUN apk --no-cache add -f \
   openssl \
   openssh-client \
   coreutils \
@@ -12,8 +11,7 @@ RUN apk update -f \
   tzdata \
   oath-toolkit-oathtool \
   tar \
-  libidn \
-  && rm -rf /var/cache/apk/*
+  libidn
 
 ENV LE_CONFIG_HOME /acme.sh
 
@@ -22,7 +20,7 @@ ARG AUTO_UPGRADE=1
 ENV AUTO_UPGRADE $AUTO_UPGRADE
 
 #Install
-ADD ./ /install_acme.sh/
+COPY ./ /install_acme.sh/
 RUN cd /install_acme.sh && ([ -f /install_acme.sh/acme.sh ] && /install_acme.sh/acme.sh --install || curl https://get.acme.sh | sh) && rm -rf /install_acme.sh/
 
 
diff --git a/README.md b/README.md
index edd6442f..c7f7e677 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 # An ACME Shell script: acme.sh 
 
-![LetsEncrypt](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)
+[![FreeBSD](https://github.com/acmesh-official/acme.sh/actions/workflows/FreeBSD.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/FreeBSD.yml)
+[![MacOS](https://github.com/acmesh-official/acme.sh/actions/workflows/MacOS.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/MacOS.yml)
+[![Ubuntu](https://github.com/acmesh-official/acme.sh/actions/workflows/Ubuntu.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Ubuntu.yml)
+[![Windows](https://github.com/acmesh-official/acme.sh/actions/workflows/Windows.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Windows.yml)
+[![Solaris](https://github.com/acmesh-official/acme.sh/actions/workflows/Solaris.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Solaris.yml)
+
 ![Shellcheck](https://github.com/acmesh-official/acme.sh/workflows/Shellcheck/badge.svg)
 ![PebbleStrict](https://github.com/acmesh-official/acme.sh/workflows/PebbleStrict/badge.svg)
 ![DockerHub](https://github.com/acmesh-official/acme.sh/workflows/Build%20DockerHub/badge.svg)
@@ -57,37 +62,39 @@ Twitter: [@neilpangxa](https://twitter.com/neilpangxa)
 
 | NO | Status| Platform|
 |----|-------|---------|
-|1|[![MacOS](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Mac OSX
-|2|[![Windows](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Windows (cygwin with curl, openssl and crontab included)
-|3|[![FreeBSD](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|FreeBSD
-|4|[![Solaris](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)|Solaris
-|5|[![Ubuntu](https://github.com/acmesh-official/acme.sh/workflows/LetsEncrypt/badge.svg)](https://github.com/acmesh-official/acme.sh/actions?query=workflow%3ALetsEncrypt)| Ubuntu
-|6|[![](https://acmesh-official.github.io/acmetest/status/pfsense.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|pfsense
-|7|[![](https://acmesh-official.github.io/acmetest/status/openbsd.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|OpenBSD
-|8|[![](https://acmesh-official.github.io/acmetest/status/debian-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)| Debian
-|9|[![](https://acmesh-official.github.io/acmetest/status/centos-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|CentOS
-|10|[![](https://acmesh-official.github.io/acmetest/status/opensuse-leap-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|openSUSE
-|11|[![](https://acmesh-official.github.io/acmetest/status/alpine-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Alpine Linux (with curl)
-|12|[![](https://acmesh-official.github.io/acmetest/status/archlinux-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Archlinux
-|13|[![](https://acmesh-official.github.io/acmetest/status/fedora-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|fedora
-|14|[![](https://acmesh-official.github.io/acmetest/status/kalilinux-kali.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Kali Linux
-|15|[![](https://acmesh-official.github.io/acmetest/status/oraclelinux-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Oracle Linux
-|16|[![](https://acmesh-official.github.io/acmetest/status/proxmox.svg)](https://github.com/acmesh-official/letest#here-are-the-latest-status)| Proxmox: See Proxmox VE Wiki. Version [4.x, 5.0, 5.1](https://pve.proxmox.com/wiki/HTTPS_Certificate_Configuration_(Version_4.x,_5.0_and_5.1)#Let.27s_Encrypt_using_acme.sh), version [5.2 and up](https://pve.proxmox.com/wiki/Certificate_Management)
-|17|-----| Cloud Linux  https://github.com/acmesh-official/acme.sh/issues/111
-|18|[![](https://acmesh-official.github.io/acmetest/status/mageia.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Mageia
-|19|-----| OpenWRT: Tested and working. See [wiki page](https://github.com/acmesh-official/acme.sh/wiki/How-to-run-on-OpenWRT)
-|20|[![](https://acmesh-official.github.io/acmetest/status/gentoo-stage3-amd64.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|Gentoo Linux
-|21|[![](https://acmesh-official.github.io/acmetest/status/clearlinux-latest.svg)](https://github.com/acmesh-official/acmetest#here-are-the-latest-status)|ClearLinux
-
-For all build statuses, check our [weekly build project](https://github.com/acmesh-official/acmetest):
+|1|[![MacOS](https://github.com/acmesh-official/acme.sh/actions/workflows/MacOS.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/MacOS.yml)|Mac OSX
+|2|[![Windows](https://github.com/acmesh-official/acme.sh/actions/workflows/Windows.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Windows.yml)|Windows (cygwin with curl, openssl and crontab included)
+|3|[![FreeBSD](https://github.com/acmesh-official/acme.sh/actions/workflows/FreeBSD.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/FreeBSD.yml)|FreeBSD
+|4|[![Solaris](https://github.com/acmesh-official/acme.sh/actions/workflows/Solaris.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Solaris.yml)|Solaris
+|5|[![Ubuntu](https://github.com/acmesh-official/acme.sh/actions/workflows/Ubuntu.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Ubuntu.yml)| Ubuntu
+|6|NA|pfsense
+|7|NA|OpenBSD
+|8|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)| Debian
+|9|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|CentOS
+|10|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|openSUSE
+|11|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Alpine Linux (with curl)
+|12|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Archlinux
+|13|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|fedora
+|14|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Kali Linux
+|15|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Oracle Linux
+|16|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Mageia
+|17|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|Gentoo Linux
+|18|[![Linux](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml/badge.svg)](https://github.com/acmesh-official/acme.sh/actions/workflows/Linux.yml)|ClearLinux
+|19|-----| Cloud Linux  https://github.com/acmesh-official/acme.sh/issues/111
+|20|-----| OpenWRT: Tested and working. See [wiki page](https://github.com/acmesh-official/acme.sh/wiki/How-to-run-on-OpenWRT)
+|21|[![](https://acmesh-official.github.io/acmetest/status/proxmox.svg)](https://github.com/acmesh-official/letest#here-are-the-latest-status)| Proxmox: See Proxmox VE Wiki. Version [4.x, 5.0, 5.1](https://pve.proxmox.com/wiki/HTTPS_Certificate_Configuration_(Version_4.x,_5.0_and_5.1)#Let.27s_Encrypt_using_acme.sh), version [5.2 and up](https://pve.proxmox.com/wiki/Certificate_Management)
+
+
+Check our [testing project](https://github.com/acmesh-official/acmetest):
 
 https://github.com/acmesh-official/acmetest
 
 # Supported CA
 
-- Letsencrypt.org CA(default)
-- [ZeroSSL.com CA](https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA)
+- [ZeroSSL.com CA](https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA)(default)
+- Letsencrypt.org CA
 - [BuyPass.com CA](https://github.com/acmesh-official/acme.sh/wiki/BuyPass.com-CA)
+- [SSL.com CA](https://github.com/acmesh-official/acme.sh/wiki/SSL.com-CA)
 - [Pebble strict Mode](https://github.com/letsencrypt/pebble)
 - Any other [RFC8555](https://tools.ietf.org/html/rfc8555)-compliant CA
 
@@ -469,7 +476,7 @@ TODO:
 
 ### Code Contributors
 
-This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
+This project exists thanks to all the people who contribute.
 <a href="https://github.com/acmesh-official/acme.sh/graphs/contributors"><img src="https://opencollective.com/acmesh/contributors.svg?width=890&button=false" /></a>
 
 ### Financial Contributors
diff --git a/acme.sh b/acme.sh
index 06edc8d5..f24833e0 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.8.9
+VER=3.0.0
 
 PROJECT_NAME="acme.sh"
 
@@ -20,9 +20,6 @@ _SUB_FOLDER_DEPLOY="deploy"
 
 _SUB_FOLDERS="$_SUB_FOLDER_DNSAPI $_SUB_FOLDER_DEPLOY $_SUB_FOLDER_NOTIFY"
 
-LETSENCRYPT_CA_V1="https://acme-v01.api.letsencrypt.org/directory"
-LETSENCRYPT_STAGING_CA_V1="https://acme-staging.api.letsencrypt.org/directory"
-
 CA_LETSENCRYPT_V2="https://acme-v02.api.letsencrypt.org/directory"
 CA_LETSENCRYPT_V2_TEST="https://acme-staging-v02.api.letsencrypt.org/directory"
 
@@ -32,18 +29,22 @@ CA_BUYPASS_TEST="https://api.test4.buypass.no/acme/directory"
 CA_ZEROSSL="https://acme.zerossl.com/v2/DV90"
 _ZERO_EAB_ENDPOINT="http://api.zerossl.com/acme/eab-credentials-email"
 
-DEFAULT_CA=$CA_LETSENCRYPT_V2
+CA_SSLCOM_RSA="https://acme.ssl.com/sslcom-dv-rsa"
+CA_SSLCOM_ECC="https://acme.ssl.com/sslcom-dv-ecc"
+
+DEFAULT_CA=$CA_ZEROSSL
 DEFAULT_STAGING_CA=$CA_LETSENCRYPT_V2_TEST
 
 CA_NAMES="
+ZeroSSL.com,zerossl
 LetsEncrypt.org,letsencrypt
 LetsEncrypt.org_test,letsencrypt_test,letsencrypttest
 BuyPass.com,buypass
 BuyPass.com_test,buypass_test,buypasstest
-ZeroSSL.com,zerossl
+SSL.com,sslcom
 "
 
-CA_SERVERS="$CA_LETSENCRYPT_V2,$CA_LETSENCRYPT_V2_TEST,$CA_BUYPASS,$CA_BUYPASS_TEST,$CA_ZEROSSL"
+CA_SERVERS="$CA_ZEROSSL,$CA_LETSENCRYPT_V2,$CA_LETSENCRYPT_V2_TEST,$CA_BUYPASS,$CA_BUYPASS_TEST,$CA_SSLCOM_RSA"
 
 DEFAULT_USER_AGENT="$PROJECT_NAME/$VER ($PROJECT)"
 
@@ -102,6 +103,8 @@ DEBUG_LEVEL_NONE=0
 
 DOH_CLOUDFLARE=1
 DOH_GOOGLE=2
+DOH_ALI=3
+DOH_DP=4
 
 HIDDEN_VALUE="[hidden](please add '--output-insecure' to see this value)"
 
@@ -156,6 +159,8 @@ _REVOKE_WIKI="https://github.com/acmesh-official/acme.sh/wiki/revokecert"
 
 _ZEROSSL_WIKI="https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA"
 
+_SSLCOM_WIKI="https://github.com/acmesh-official/acme.sh/wiki/SSL.com-CA"
+
 _SERVER_WIKI="https://github.com/acmesh-official/acme.sh/wiki/Server"
 
 _PREFERRED_CHAIN_WIKI="https://github.com/acmesh-official/acme.sh/wiki/Preferred-Chain"
@@ -562,8 +567,16 @@ if _exists xargs && [ "$(printf %s '\\x41' | xargs printf)" = 'A' ]; then
 fi
 
 _h2b() {
-  if _exists xxd && xxd -r -p 2>/dev/null; then
-    return
+  if _exists xxd; then
+    if _contains "$(xxd --help 2>&1)" "assumes -c30"; then
+      if xxd -r -p -c 9999 2>/dev/null; then
+        return
+      fi
+    else
+      if xxd -r -p 2>/dev/null; then
+        return
+      fi
+    fi
   fi
 
   hex=$(cat)
@@ -1124,7 +1137,7 @@ _createkey() {
 
   if _isEccKey "$length"; then
     _debug "Using ec name: $eccname"
-    if _opkey="$(${ACME_OPENSSL_BIN:-openssl} ecparam -name "$eccname" -genkey 2>/dev/null)"; then
+    if _opkey="$(${ACME_OPENSSL_BIN:-openssl} ecparam -name "$eccname" -noout -genkey 2>/dev/null)"; then
       echo "$_opkey" >"$f"
     else
       _err "error ecc key name: $eccname"
@@ -1203,7 +1216,7 @@ _createcsr() {
   _debug2 csr "$csr"
   _debug2 csrconf "$csrconf"
 
-  printf "[ req_distinguished_name ]\n[ req ]\ndistinguished_name = req_distinguished_name\nreq_extensions = v3_req\n[ v3_req ]\n\nkeyUsage = nonRepudiation, digitalSignature, keyEncipherment" >"$csrconf"
+  printf "[ req_distinguished_name ]\n[ req ]\ndistinguished_name = req_distinguished_name\nreq_extensions = v3_req\n[ v3_req ]\n\n" >"$csrconf"
 
   if [ "$acmeValidationv1" ]; then
     domainlist="$(_idn "$domainlist")"
@@ -2033,7 +2046,7 @@ _send_signed_request() {
         if _post "" "$nonceurl" "" "HEAD" "$__request_conent_type" >/dev/null; then
           _headers="$(cat "$HTTP_HEADER")"
           _debug2 _headers "$_headers"
-          _CACHED_NONCE="$(echo "$_headers" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2)"
+          _CACHED_NONCE="$(echo "$_headers" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2 | cut -d , -f 1)"
         fi
       fi
       if [ -z "$_CACHED_NONCE" ]; then
@@ -2065,17 +2078,15 @@ _send_signed_request() {
       _sleep 2
       continue
     fi
-    if [ "$ACME_VERSION" = "2" ]; then
-      if [ "$url" = "$ACME_NEW_ACCOUNT" ]; then
-        protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
-      elif [ "$url" = "$ACME_REVOKE_CERT" ] && [ "$keyfile" != "$ACCOUNT_KEY_PATH" ]; then
-        protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
-      else
-        protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"kid\": \"${ACCOUNT_URL}\""'}'
-      fi
-    else
+
+    if [ "$url" = "$ACME_NEW_ACCOUNT" ]; then
+      protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
+    elif [ "$url" = "$ACME_REVOKE_CERT" ] && [ "$keyfile" != "$ACCOUNT_KEY_PATH" ]; then
       protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
+    else
+      protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"kid\": \"${ACCOUNT_URL}\""'}'
     fi
+
     _debug3 protected "$protected"
 
     protected64="$(printf "%s" "$protected" | _base64 | _url_replace)"
@@ -2113,7 +2124,7 @@ _send_signed_request() {
     fi
     _debug2 response "$response"
 
-    _CACHED_NONCE="$(echo "$responseHeaders" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2)"
+    _CACHED_NONCE="$(echo "$responseHeaders" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2 | cut -d , -f 1)"
 
     if ! _startswith "$code" "2"; then
       _body="$response"
@@ -2128,6 +2139,12 @@ _send_signed_request() {
         _sleep $_sleep_retry_sec
         continue
       fi
+      if _contains "$_body" "The Replay Nonce is not recognized"; then
+        _info "The replay Nonce is not valid, let's get a new one, Sleeping $_sleep_retry_sec seconds."
+        _CACHED_NONCE=""
+        _sleep $_sleep_retry_sec
+        continue
+      fi
     fi
     return 0
   done
@@ -2255,7 +2272,7 @@ _getdeployconf() {
     return 0 # do nothing
   fi
   _saved=$(_readdomainconf "SAVED_$_rac_key")
-  eval "export $_rac_key=\"$_saved\""
+  eval "export $_rac_key=\"\$_saved\""
 }
 
 #_saveaccountconf  key  value  base64encode
@@ -2346,7 +2363,7 @@ _startserver() {
 echo 'HTTP/1.0 200 OK'; \
 echo 'Content-Length\: $_content_len'; \
 echo ''; \
-printf -- '$content';" &
+printf '%s' '$content';" &
   serverproc="$!"
 }
 
@@ -2521,76 +2538,56 @@ __initHome() {
   fi
 }
 
+_clearAPI() {
+  ACME_NEW_ACCOUNT=""
+  ACME_KEY_CHANGE=""
+  ACME_NEW_AUTHZ=""
+  ACME_NEW_ORDER=""
+  ACME_REVOKE_CERT=""
+  ACME_NEW_NONCE=""
+  ACME_AGREEMENT=""
+}
+
 #server
 _initAPI() {
   _api_server="${1:-$ACME_DIRECTORY}"
   _debug "_init api for server: $_api_server"
 
-  if [ -z "$ACME_NEW_ACCOUNT" ]; then
+  MAX_API_RETRY_TIMES=10
+  _sleep_retry_sec=10
+  _request_retry_times=0
+  while [ -z "$ACME_NEW_ACCOUNT" ] && [ "${_request_retry_times}" -lt "$MAX_API_RETRY_TIMES" ]; do
+    _request_retry_times=$(_math "$_request_retry_times" + 1)
     response=$(_get "$_api_server")
     if [ "$?" != "0" ]; then
       _debug2 "response" "$response"
-      _err "Can not init api."
-      return 1
+      _info "Can not init api for: $_api_server."
+      _info "Sleep $_sleep_retry_sec and retry."
+      _sleep "$_sleep_retry_sec"
+      continue
     fi
     response=$(echo "$response" | _json_decode)
     _debug2 "response" "$response"
 
-    ACME_KEY_CHANGE=$(echo "$response" | _egrep_o 'key-change" *: *"[^"]*"' | cut -d '"' -f 3)
-    if [ -z "$ACME_KEY_CHANGE" ]; then
-      ACME_KEY_CHANGE=$(echo "$response" | _egrep_o 'keyChange" *: *"[^"]*"' | cut -d '"' -f 3)
-    fi
+    ACME_KEY_CHANGE=$(echo "$response" | _egrep_o 'keyChange" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_KEY_CHANGE
 
-    ACME_NEW_AUTHZ=$(echo "$response" | _egrep_o 'new-authz" *: *"[^"]*"' | cut -d '"' -f 3)
-    if [ -z "$ACME_NEW_AUTHZ" ]; then
-      ACME_NEW_AUTHZ=$(echo "$response" | _egrep_o 'newAuthz" *: *"[^"]*"' | cut -d '"' -f 3)
-    fi
+    ACME_NEW_AUTHZ=$(echo "$response" | _egrep_o 'newAuthz" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_NEW_AUTHZ
 
-    ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'new-cert" *: *"[^"]*"' | cut -d '"' -f 3)
-    ACME_NEW_ORDER_RES="new-cert"
-    if [ -z "$ACME_NEW_ORDER" ]; then
-      ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'new-order" *: *"[^"]*"' | cut -d '"' -f 3)
-      ACME_NEW_ORDER_RES="new-order"
-      if [ -z "$ACME_NEW_ORDER" ]; then
-        ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'newOrder" *: *"[^"]*"' | cut -d '"' -f 3)
-      fi
-    fi
+    ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'newOrder" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_NEW_ORDER
-    export ACME_NEW_ORDER_RES
-
-    ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'new-reg" *: *"[^"]*"' | cut -d '"' -f 3)
-    ACME_NEW_ACCOUNT_RES="new-reg"
-    if [ -z "$ACME_NEW_ACCOUNT" ]; then
-      ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'new-account" *: *"[^"]*"' | cut -d '"' -f 3)
-      ACME_NEW_ACCOUNT_RES="new-account"
-      if [ -z "$ACME_NEW_ACCOUNT" ]; then
-        ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'newAccount" *: *"[^"]*"' | cut -d '"' -f 3)
-        if [ "$ACME_NEW_ACCOUNT" ]; then
-          export ACME_VERSION=2
-        fi
-      fi
-    fi
+
+    ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'newAccount" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_NEW_ACCOUNT
-    export ACME_NEW_ACCOUNT_RES
 
-    ACME_REVOKE_CERT=$(echo "$response" | _egrep_o 'revoke-cert" *: *"[^"]*"' | cut -d '"' -f 3)
-    if [ -z "$ACME_REVOKE_CERT" ]; then
-      ACME_REVOKE_CERT=$(echo "$response" | _egrep_o 'revokeCert" *: *"[^"]*"' | cut -d '"' -f 3)
-    fi
+    ACME_REVOKE_CERT=$(echo "$response" | _egrep_o 'revokeCert" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_REVOKE_CERT
 
-    ACME_NEW_NONCE=$(echo "$response" | _egrep_o 'new-nonce" *: *"[^"]*"' | cut -d '"' -f 3)
-    if [ -z "$ACME_NEW_NONCE" ]; then
-      ACME_NEW_NONCE=$(echo "$response" | _egrep_o 'newNonce" *: *"[^"]*"' | cut -d '"' -f 3)
-    fi
+    ACME_NEW_NONCE=$(echo "$response" | _egrep_o 'newNonce" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_NEW_NONCE
 
-    ACME_AGREEMENT=$(echo "$response" | _egrep_o 'terms-of-service" *: *"[^"]*"' | cut -d '"' -f 3)
-    if [ -z "$ACME_AGREEMENT" ]; then
-      ACME_AGREEMENT=$(echo "$response" | _egrep_o 'termsOfService" *: *"[^"]*"' | cut -d '"' -f 3)
-    fi
+    ACME_AGREEMENT=$(echo "$response" | _egrep_o 'termsOfService" *: *"[^"]*"' | cut -d '"' -f 3)
     export ACME_AGREEMENT
 
     _debug "ACME_KEY_CHANGE" "$ACME_KEY_CHANGE"
@@ -2600,9 +2597,17 @@ _initAPI() {
     _debug "ACME_REVOKE_CERT" "$ACME_REVOKE_CERT"
     _debug "ACME_AGREEMENT" "$ACME_AGREEMENT"
     _debug "ACME_NEW_NONCE" "$ACME_NEW_NONCE"
-    _debug "ACME_VERSION" "$ACME_VERSION"
-
+    if [ "$ACME_NEW_ACCOUNT" ] && [ "$ACME_NEW_ORDER" ]; then
+      return 0
+    fi
+    _info "Sleep $_sleep_retry_sec and retry."
+    _sleep "$_sleep_retry_sec"
+  done
+  if [ "$ACME_NEW_ACCOUNT" ] && [ "$ACME_NEW_ORDER" ]; then
+    return 0
   fi
+  _err "Can not init api, for $_api_server"
+  return 1
 }
 
 #[domain]  [keylength or isEcc flag]
@@ -2646,15 +2651,44 @@ _initpath() {
   _ACME_SERVER_HOST="$(echo "$ACME_DIRECTORY" | cut -d : -f 2 | tr -s / | cut -d / -f 2)"
   _debug2 "_ACME_SERVER_HOST" "$_ACME_SERVER_HOST"
 
-  CA_DIR="$CA_HOME/$_ACME_SERVER_HOST"
+  _ACME_SERVER_PATH="$(echo "$ACME_DIRECTORY" | cut -d : -f 2- | tr -s / | cut -d / -f 3-)"
+  _debug2 "_ACME_SERVER_PATH" "$_ACME_SERVER_PATH"
 
+  CA_DIR="$CA_HOME/$_ACME_SERVER_HOST/$_ACME_SERVER_PATH"
   _DEFAULT_CA_CONF="$CA_DIR/ca.conf"
-
   if [ -z "$CA_CONF" ]; then
     CA_CONF="$_DEFAULT_CA_CONF"
   fi
   _debug3 CA_CONF "$CA_CONF"
 
+  _OLD_CADIR="$CA_HOME/$_ACME_SERVER_HOST"
+  _OLD_ACCOUNT_KEY="$_OLD_CADIR/account.key"
+  _OLD_ACCOUNT_JSON="$_OLD_CADIR/account.json"
+  _OLD_CA_CONF="$_OLD_CADIR/ca.conf"
+
+  _DEFAULT_ACCOUNT_KEY_PATH="$CA_DIR/account.key"
+  _DEFAULT_ACCOUNT_JSON_PATH="$CA_DIR/account.json"
+  if [ -z "$ACCOUNT_KEY_PATH" ]; then
+    ACCOUNT_KEY_PATH="$_DEFAULT_ACCOUNT_KEY_PATH"
+    if [ -f "$_OLD_ACCOUNT_KEY" ] && ! [ -f "$ACCOUNT_KEY_PATH" ]; then
+      mkdir -p "$CA_DIR"
+      mv "$_OLD_ACCOUNT_KEY" "$ACCOUNT_KEY_PATH"
+    fi
+  fi
+
+  if [ -z "$ACCOUNT_JSON_PATH" ]; then
+    ACCOUNT_JSON_PATH="$_DEFAULT_ACCOUNT_JSON_PATH"
+    if [ -f "$_OLD_ACCOUNT_JSON" ] && ! [ -f "$ACCOUNT_JSON_PATH" ]; then
+      mkdir -p "$CA_DIR"
+      mv "$_OLD_ACCOUNT_JSON" "$ACCOUNT_JSON_PATH"
+    fi
+  fi
+
+  if [ -f "$_OLD_CA_CONF" ] && ! [ -f "$CA_CONF" ]; then
+    mkdir -p "$CA_DIR"
+    mv "$_OLD_CA_CONF" "$CA_CONF"
+  fi
+
   if [ -f "$CA_CONF" ]; then
     . "$CA_CONF"
   fi
@@ -2675,19 +2709,6 @@ _initpath() {
     HTTP_HEADER="$LE_CONFIG_HOME/http.header"
   fi
 
-  _OLD_ACCOUNT_KEY="$LE_WORKING_DIR/account.key"
-  _OLD_ACCOUNT_JSON="$LE_WORKING_DIR/account.json"
-
-  _DEFAULT_ACCOUNT_KEY_PATH="$CA_DIR/account.key"
-  _DEFAULT_ACCOUNT_JSON_PATH="$CA_DIR/account.json"
-  if [ -z "$ACCOUNT_KEY_PATH" ]; then
-    ACCOUNT_KEY_PATH="$_DEFAULT_ACCOUNT_KEY_PATH"
-  fi
-
-  if [ -z "$ACCOUNT_JSON_PATH" ]; then
-    ACCOUNT_JSON_PATH="$_DEFAULT_ACCOUNT_JSON_PATH"
-  fi
-
   _DEFAULT_CERT_HOME="$LE_CONFIG_HOME"
   if [ -z "$CERT_HOME" ]; then
     CERT_HOME="$_DEFAULT_CERT_HOME"
@@ -3085,6 +3106,11 @@ _checkConf() {
       _debug "Try include files"
       for included in $(cat "$2" | tr "\t" " " | grep "^ *include *.*;" | sed "s/include //" | tr -d " ;"); do
         _debug "check included $included"
+        if ! _startswith "$included" "/" && _exists dirname; then
+          _relpath="$(dirname "$_c_file")"
+          _debug "_relpath" "$_relpath"
+          included="$_relpath/included"
+        fi
         if _checkConf "$1" "$included"; then
           return 0
         fi
@@ -3513,15 +3539,6 @@ _regAccount() {
   _initAPI
 
   mkdir -p "$CA_DIR"
-  if [ ! -f "$ACCOUNT_KEY_PATH" ] && [ -f "$_OLD_ACCOUNT_KEY" ]; then
-    _info "mv $_OLD_ACCOUNT_KEY to $ACCOUNT_KEY_PATH"
-    mv "$_OLD_ACCOUNT_KEY" "$ACCOUNT_KEY_PATH"
-  fi
-
-  if [ ! -f "$ACCOUNT_JSON_PATH" ] && [ -f "$_OLD_ACCOUNT_JSON" ]; then
-    _info "mv $_OLD_ACCOUNT_JSON to $ACCOUNT_JSON_PATH"
-    mv "$_OLD_ACCOUNT_JSON" "$ACCOUNT_JSON_PATH"
-  fi
 
   if [ ! -f "$ACCOUNT_KEY_PATH" ]; then
     if ! _create_account_key "$_reg_length"; then
@@ -3545,68 +3562,66 @@ _regAccount() {
   if [ "$_email" ]; then
     _savecaconf "CA_EMAIL" "$_email"
   fi
-  if [ "$ACME_VERSION" = "2" ]; then
-    if [ "$ACME_DIRECTORY" = "$CA_ZEROSSL" ]; then
-      if [ -z "$_eab_id" ] || [ -z "$_eab_hmac_key" ]; then
-        _info "No EAB credentials found for ZeroSSL, let's get one"
-        if [ -z "$_email" ]; then
-          _err "Please provide a email address for ZeroSSL account."
-          _err "See ZeroSSL usage: $_ZEROSSL_WIKI"
-          return 1
-        fi
-        _eabresp=$(_post "email=$_email" $_ZERO_EAB_ENDPOINT)
-        if [ "$?" != "0" ]; then
-          _debug2 "$_eabresp"
-          _err "Can not get EAB credentials from ZeroSSL."
-          return 1
-        fi
-        _eab_id="$(echo "$_eabresp" | tr ',}' '\n' | grep '"eab_kid"' | cut -d : -f 2 | tr -d '"')"
-        if [ -z "$_eab_id" ]; then
-          _err "Can not resolve _eab_id"
-          return 1
-        fi
-        _eab_hmac_key="$(echo "$_eabresp" | tr ',}' '\n' | grep '"eab_hmac_key"' | cut -d : -f 2 | tr -d '"')"
-        if [ -z "$_eab_hmac_key" ]; then
-          _err "Can not resolve _eab_hmac_key"
-          return 1
-        fi
-        _savecaconf CA_EAB_KEY_ID "$_eab_id"
-        _savecaconf CA_EAB_HMAC_KEY "$_eab_hmac_key"
+
+  if [ "$ACME_DIRECTORY" = "$CA_ZEROSSL" ]; then
+    if [ -z "$_eab_id" ] || [ -z "$_eab_hmac_key" ]; then
+      _info "No EAB credentials found for ZeroSSL, let's get one"
+      if [ -z "$_email" ]; then
+        _info "$(__green "$PROJECT_NAME is using ZeroSSL as default CA now.")"
+        _info "$(__green "Please update your account with an email address first.")"
+        _info "$(__green "$PROJECT_ENTRY --register-account -m my@example.com")"
+        _info "See: $(__green "$_ZEROSSL_WIKI")"
+        return 1
       fi
+      _eabresp=$(_post "email=$_email" $_ZERO_EAB_ENDPOINT)
+      if [ "$?" != "0" ]; then
+        _debug2 "$_eabresp"
+        _err "Can not get EAB credentials from ZeroSSL."
+        return 1
+      fi
+      _secure_debug2 _eabresp "$_eabresp"
+      _eab_id="$(echo "$_eabresp" | tr ',}' '\n\n' | grep '"eab_kid"' | cut -d : -f 2 | tr -d '"')"
+      _secure_debug2 _eab_id "$_eab_id"
+      if [ -z "$_eab_id" ]; then
+        _err "Can not resolve _eab_id"
+        return 1
+      fi
+      _eab_hmac_key="$(echo "$_eabresp" | tr ',}' '\n\n' | grep '"eab_hmac_key"' | cut -d : -f 2 | tr -d '"')"
+      _secure_debug2 _eab_hmac_key "$_eab_hmac_key"
+      if [ -z "$_eab_hmac_key" ]; then
+        _err "Can not resolve _eab_hmac_key"
+        return 1
+      fi
+      _savecaconf CA_EAB_KEY_ID "$_eab_id"
+      _savecaconf CA_EAB_HMAC_KEY "$_eab_hmac_key"
     fi
-    if [ "$_eab_id" ] && [ "$_eab_hmac_key" ]; then
-      eab_protected="{\"alg\":\"HS256\",\"kid\":\"$_eab_id\",\"url\":\"${ACME_NEW_ACCOUNT}\"}"
-      _debug3 eab_protected "$eab_protected"
+  fi
+  if [ "$_eab_id" ] && [ "$_eab_hmac_key" ]; then
+    eab_protected="{\"alg\":\"HS256\",\"kid\":\"$_eab_id\",\"url\":\"${ACME_NEW_ACCOUNT}\"}"
+    _debug3 eab_protected "$eab_protected"
 
-      eab_protected64=$(printf "%s" "$eab_protected" | _base64 | _url_replace)
-      _debug3 eab_protected64 "$eab_protected64"
+    eab_protected64=$(printf "%s" "$eab_protected" | _base64 | _url_replace)
+    _debug3 eab_protected64 "$eab_protected64"
 
-      eab_payload64=$(printf "%s" "$jwk" | _base64 | _url_replace)
-      _debug3 eab_payload64 "$eab_payload64"
+    eab_payload64=$(printf "%s" "$jwk" | _base64 | _url_replace)
+    _debug3 eab_payload64 "$eab_payload64"
 
-      eab_sign_t="$eab_protected64.$eab_payload64"
-      _debug3 eab_sign_t "$eab_sign_t"
+    eab_sign_t="$eab_protected64.$eab_payload64"
+    _debug3 eab_sign_t "$eab_sign_t"
 
-      key_hex="$(_durl_replace_base64 "$_eab_hmac_key" | _dbase64 | _hex_dump | tr -d ' ')"
-      _debug3 key_hex "$key_hex"
+    key_hex="$(_durl_replace_base64 "$_eab_hmac_key" | _dbase64 multi | _hex_dump | tr -d ' ')"
+    _debug3 key_hex "$key_hex"
 
-      eab_signature=$(printf "%s" "$eab_sign_t" | _hmac sha256 $key_hex | _base64 | _url_replace)
-      _debug3 eab_signature "$eab_signature"
+    eab_signature=$(printf "%s" "$eab_sign_t" | _hmac sha256 $key_hex | _base64 | _url_replace)
+    _debug3 eab_signature "$eab_signature"
 
-      externalBinding=",\"externalAccountBinding\":{\"protected\":\"$eab_protected64\", \"payload\":\"$eab_payload64\", \"signature\":\"$eab_signature\"}"
-      _debug3 externalBinding "$externalBinding"
-    fi
-    if [ "$_email" ]; then
-      email_sg="\"contact\": [\"mailto:$_email\"], "
-    fi
-    regjson="{$email_sg\"termsOfServiceAgreed\": true$externalBinding}"
-  else
-    _reg_res="$ACME_NEW_ACCOUNT_RES"
-    regjson='{"resource": "'$_reg_res'", "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
-    if [ "$_email" ]; then
-      regjson='{"resource": "'$_reg_res'", "contact": ["mailto:'$_email'"], "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
-    fi
+    externalBinding=",\"externalAccountBinding\":{\"protected\":\"$eab_protected64\", \"payload\":\"$eab_payload64\", \"signature\":\"$eab_signature\"}"
+    _debug3 externalBinding "$externalBinding"
+  fi
+  if [ "$_email" ]; then
+    email_sg="\"contact\": [\"mailto:$_email\"], "
   fi
+  regjson="{$email_sg\"termsOfServiceAgreed\": true$externalBinding}"
 
   _info "Registering account: $ACME_DIRECTORY"
 
@@ -3661,16 +3676,6 @@ _regAccount() {
 updateaccount() {
   _initpath
 
-  if [ ! -f "$ACCOUNT_KEY_PATH" ] && [ -f "$_OLD_ACCOUNT_KEY" ]; then
-    _info "mv $_OLD_ACCOUNT_KEY to $ACCOUNT_KEY_PATH"
-    mv "$_OLD_ACCOUNT_KEY" "$ACCOUNT_KEY_PATH"
-  fi
-
-  if [ ! -f "$ACCOUNT_JSON_PATH" ] && [ -f "$_OLD_ACCOUNT_JSON" ]; then
-    _info "mv $_OLD_ACCOUNT_JSON to $ACCOUNT_JSON_PATH"
-    mv "$_OLD_ACCOUNT_JSON" "$ACCOUNT_JSON_PATH"
-  fi
-
   if [ ! -f "$ACCOUNT_KEY_PATH" ]; then
     _err "Account key is not found at: $ACCOUNT_KEY_PATH"
     return 1
@@ -3691,20 +3696,13 @@ updateaccount() {
   _initAPI
 
   _email="$(_getAccountEmail)"
-  if [ "$ACME_VERSION" = "2" ]; then
-    if [ "$ACCOUNT_EMAIL" ]; then
-      updjson='{"contact": ["mailto:'$_email'"]}'
-    else
-      updjson='{"contact": []}'
-    fi
+
+  if [ "$ACCOUNT_EMAIL" ]; then
+    updjson='{"contact": ["mailto:'$_email'"]}'
   else
-    # ACMEv1: Updates happen the same way a registration is done.
-    # https://tools.ietf.org/html/draft-ietf-acme-acme-01#section-6.3
-    _regAccount
-    return
+    updjson='{"contact": []}'
   fi
 
-  # this part handles ACMEv2 account updates.
   _send_signed_request "$_accUri" "$updjson"
 
   if [ "$code" = '200' ]; then
@@ -3720,16 +3718,6 @@ updateaccount() {
 deactivateaccount() {
   _initpath
 
-  if [ ! -f "$ACCOUNT_KEY_PATH" ] && [ -f "$_OLD_ACCOUNT_KEY" ]; then
-    _info "mv $_OLD_ACCOUNT_KEY to $ACCOUNT_KEY_PATH"
-    mv "$_OLD_ACCOUNT_KEY" "$ACCOUNT_KEY_PATH"
-  fi
-
-  if [ ! -f "$ACCOUNT_JSON_PATH" ] && [ -f "$_OLD_ACCOUNT_JSON" ]; then
-    _info "mv $_OLD_ACCOUNT_JSON to $ACCOUNT_JSON_PATH"
-    mv "$_OLD_ACCOUNT_JSON" "$ACCOUNT_JSON_PATH"
-  fi
-
   if [ ! -f "$ACCOUNT_KEY_PATH" ]; then
     _err "Account key is not found at: $ACCOUNT_KEY_PATH"
     return 1
@@ -3749,11 +3737,8 @@ deactivateaccount() {
   fi
   _initAPI
 
-  if [ "$ACME_VERSION" = "2" ]; then
-    _djson="{\"status\":\"deactivated\"}"
-  else
-    _djson="{\"resource\": \"reg\", \"status\":\"deactivated\"}"
-  fi
+  _djson="{\"status\":\"deactivated\"}"
+
   if _send_signed_request "$_accUri" "$_djson" && _contains "$response" '"deactivated"'; then
     _info "Deactivate account success for $_accUri."
     _accid=$(echo "$response" | _egrep_o "\"id\" *: *[^,]*," | cut -d : -f 2 | tr -d ' ,')
@@ -3858,11 +3843,9 @@ __trigger_validation() {
   _debug2 _t_key_authz "$_t_key_authz"
   _t_vtype="$3"
   _debug2 _t_vtype "$_t_vtype"
-  if [ "$ACME_VERSION" = "2" ]; then
-    _send_signed_request "$_t_url" "{}"
-  else
-    _send_signed_request "$_t_url" "{\"resource\": \"challenge\", \"type\": \"$_t_vtype\", \"keyAuthorization\": \"$_t_key_authz\"}"
-  fi
+
+  _send_signed_request "$_t_url" "{}"
+
 }
 
 #endpoint  domain type
@@ -3905,7 +3888,15 @@ _ns_purge_cf() {
 
 #checks if cf server is available
 _ns_is_available_cf() {
-  if _get "https://cloudflare-dns.com" >/dev/null 2>&1; then
+  if _get "https://cloudflare-dns.com" "" 1 >/dev/null 2>&1; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+_ns_is_available_google() {
+  if _get "https://dns.google" "" 1 >/dev/null 2>&1; then
     return 0
   else
     return 1
@@ -3920,6 +3911,38 @@ _ns_lookup_google() {
   _ns_lookup_impl "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
 }
 
+_ns_is_available_ali() {
+  if _get "https://dns.alidns.com" "" 1 >/dev/null 2>&1; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+#domain, type
+_ns_lookup_ali() {
+  _cf_ld="$1"
+  _cf_ld_type="$2"
+  _cf_ep="https://dns.alidns.com/resolve"
+  _ns_lookup_impl "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
+}
+
+_ns_is_available_dp() {
+  if _get "https://dns.alidns.com" "" 1 >/dev/null 2>&1; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+#dnspod
+_ns_lookup_dp() {
+  _cf_ld="$1"
+  _cf_ld_type="$2"
+  _cf_ep="https://doh.pub/dns-query"
+  _ns_lookup_impl "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
+}
+
 #domain, type
 _ns_lookup() {
   if [ -z "$DOH_USE" ]; then
@@ -3927,16 +3950,30 @@ _ns_lookup() {
     if _ns_is_available_cf; then
       _debug "Use cloudflare doh server"
       export DOH_USE=$DOH_CLOUDFLARE
-    else
+    elif _ns_is_available_google; then
       _debug "Use google doh server"
       export DOH_USE=$DOH_GOOGLE
+    elif _ns_is_available_ali; then
+      _debug "Use aliyun doh server"
+      export DOH_USE=$DOH_ALI
+    elif _ns_is_available_dp; then
+      _debug "Use dns pod doh server"
+      export DOH_USE=$DOH_DP
+    else
+      _err "No doh"
     fi
   fi
 
   if [ "$DOH_USE" = "$DOH_CLOUDFLARE" ] || [ -z "$DOH_USE" ]; then
     _ns_lookup_cf "$@"
-  else
+  elif [ "$DOH_USE" = "$DOH_GOOGLE" ]; then
     _ns_lookup_google "$@"
+  elif [ "$DOH_USE" = "$DOH_ALI" ]; then
+    _ns_lookup_ali "$@"
+  elif [ "$DOH_USE" = "$DOH_DP" ]; then
+    _ns_lookup_dp "$@"
+  else
+    _err "Unknown doh provider: DOH_USE=$DOH_USE"
   fi
 
 }
@@ -3961,7 +3998,7 @@ __purge_txt() {
   if [ "$DOH_USE" = "$DOH_CLOUDFLARE" ] || [ -z "$DOH_USE" ]; then
     _ns_purge_cf "$_p_txtdomain" "TXT"
   else
-    _debug "no purge api for google dns api, just sleep 5 secs"
+    _debug "no purge api for this doh api, just sleep 5 secs"
     _sleep 5
   fi
 
@@ -4120,7 +4157,9 @@ issue() {
 
   _debug "Using ACME_DIRECTORY: $ACME_DIRECTORY"
 
-  _initAPI
+  if ! _initAPI; then
+    return 1
+  fi
 
   if [ -f "$DOMAIN_CONF" ]; then
     Le_NextRenewTime=$(_readdomainconf Le_NextRenewTime)
@@ -4224,74 +4263,72 @@ issue() {
   sep='#'
   dvsep=','
   if [ -z "$vlist" ]; then
-    if [ "$ACME_VERSION" = "2" ]; then
-      #make new order request
-      _identifiers="{\"type\":\"dns\",\"value\":\"$(_idn "$_main_domain")\"}"
-      _w_index=1
-      while true; do
-        d="$(echo "$_alt_domains," | cut -d , -f "$_w_index")"
-        _w_index="$(_math "$_w_index" + 1)"
-        _debug d "$d"
-        if [ -z "$d" ]; then
-          break
-        fi
-        _identifiers="$_identifiers,{\"type\":\"dns\",\"value\":\"$(_idn "$d")\"}"
-      done
-      _debug2 _identifiers "$_identifiers"
-      if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
-        _err "Create new order error."
-        _clearup
-        _on_issue_err "$_post_hook"
-        return 1
-      fi
-      Le_LinkOrder="$(echo "$responseHeaders" | grep -i '^Location.*$' | _tail_n 1 | tr -d "\r\n " | cut -d ":" -f 2-)"
-      _debug Le_LinkOrder "$Le_LinkOrder"
-      Le_OrderFinalize="$(echo "$response" | _egrep_o '"finalize" *: *"[^"]*"' | cut -d '"' -f 4)"
-      _debug Le_OrderFinalize "$Le_OrderFinalize"
-      if [ -z "$Le_OrderFinalize" ]; then
-        _err "Create new order error. Le_OrderFinalize not found. $response"
-        _clearup
-        _on_issue_err "$_post_hook"
-        return 1
+    #make new order request
+    _identifiers="{\"type\":\"dns\",\"value\":\"$(_idn "$_main_domain")\"}"
+    _w_index=1
+    while true; do
+      d="$(echo "$_alt_domains," | cut -d , -f "$_w_index")"
+      _w_index="$(_math "$_w_index" + 1)"
+      _debug d "$d"
+      if [ -z "$d" ]; then
+        break
       fi
+      _identifiers="$_identifiers,{\"type\":\"dns\",\"value\":\"$(_idn "$d")\"}"
+    done
+    _debug2 _identifiers "$_identifiers"
+    if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
+      _err "Create new order error."
+      _clearup
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    Le_LinkOrder="$(echo "$responseHeaders" | grep -i '^Location.*$' | _tail_n 1 | tr -d "\r\n " | cut -d ":" -f 2-)"
+    _debug Le_LinkOrder "$Le_LinkOrder"
+    Le_OrderFinalize="$(echo "$response" | _egrep_o '"finalize" *: *"[^"]*"' | cut -d '"' -f 4)"
+    _debug Le_OrderFinalize "$Le_OrderFinalize"
+    if [ -z "$Le_OrderFinalize" ]; then
+      _err "Create new order error. Le_OrderFinalize not found. $response"
+      _clearup
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
 
-      #for dns manual mode
-      _savedomainconf "Le_OrderFinalize" "$Le_OrderFinalize"
+    #for dns manual mode
+    _savedomainconf "Le_OrderFinalize" "$Le_OrderFinalize"
 
-      _authorizations_seg="$(echo "$response" | _json_decode | _egrep_o '"authorizations" *: *\[[^\[]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
-      _debug2 _authorizations_seg "$_authorizations_seg"
-      if [ -z "$_authorizations_seg" ]; then
-        _err "_authorizations_seg not found."
+    _authorizations_seg="$(echo "$response" | _json_decode | _egrep_o '"authorizations" *: *\[[^\[]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+    _debug2 _authorizations_seg "$_authorizations_seg"
+    if [ -z "$_authorizations_seg" ]; then
+      _err "_authorizations_seg not found."
+      _clearup
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+
+    #domain and authz map
+    _authorizations_map=""
+    for _authz_url in $(echo "$_authorizations_seg" | tr ',' ' '); do
+      _debug2 "_authz_url" "$_authz_url"
+      if ! _send_signed_request "$_authz_url"; then
+        _err "get to authz error."
+        _err "_authorizations_seg" "$_authorizations_seg"
+        _err "_authz_url" "$_authz_url"
         _clearup
         _on_issue_err "$_post_hook"
         return 1
       fi
 
-      #domain and authz map
-      _authorizations_map=""
-      for _authz_url in $(echo "$_authorizations_seg" | tr ',' ' '); do
-        _debug2 "_authz_url" "$_authz_url"
-        if ! _send_signed_request "$_authz_url"; then
-          _err "get to authz error."
-          _err "_authorizations_seg" "$_authorizations_seg"
-          _err "_authz_url" "$_authz_url"
-          _clearup
-          _on_issue_err "$_post_hook"
-          return 1
-        fi
-
-        response="$(echo "$response" | _normalizeJson)"
-        _debug2 response "$response"
-        _d="$(echo "$response" | _egrep_o '"value" *: *"[^"]*"' | cut -d : -f 2 | tr -d ' "')"
-        if _contains "$response" "\"wildcard\" *: *true"; then
-          _d="*.$_d"
-        fi
-        _debug2 _d "$_d"
-        _authorizations_map="$_d,$response
+      response="$(echo "$response" | _normalizeJson)"
+      _debug2 response "$response"
+      _d="$(echo "$response" | _egrep_o '"value" *: *"[^"]*"' | cut -d : -f 2 | tr -d ' "')"
+      if _contains "$response" "\"wildcard\" *: *true"; then
+        _d="*.$_d"
+      fi
+      _debug2 _d "$_d"
+      _authorizations_map="$_d,$response
 $_authorizations_map"
-      done
-      _debug2 _authorizations_map "$_authorizations_map"
-    fi
+    done
+    _debug2 _authorizations_map "$_authorizations_map"
 
     _index=0
     _currentRoot=""
@@ -4322,33 +4359,25 @@ $_authorizations_map"
         vtype="$VTYPE_ALPN"
       fi
 
-      if [ "$ACME_VERSION" = "2" ]; then
-        _idn_d="$(_idn "$d")"
-        _candidates="$(echo "$_authorizations_map" | grep -i "^$_idn_d,")"
-        _debug2 _candidates "$_candidates"
-        if [ "$(echo "$_candidates" | wc -l)" -gt 1 ]; then
-          for _can in $_candidates; do
-            if _startswith "$(echo "$_can" | tr '.' '|')" "$(echo "$_idn_d" | tr '.' '|'),"; then
-              _candidates="$_can"
-              break
-            fi
-          done
-        fi
-        response="$(echo "$_candidates" | sed "s/$_idn_d,//")"
-        _debug2 "response" "$response"
-        if [ -z "$response" ]; then
-          _err "get to authz error."
-          _err "_authorizations_map" "$_authorizations_map"
-          _clearup
-          _on_issue_err "$_post_hook"
-          return 1
-        fi
-      else
-        if ! __get_domain_new_authz "$d"; then
-          _clearup
-          _on_issue_err "$_post_hook"
-          return 1
-        fi
+      _idn_d="$(_idn "$d")"
+      _candidates="$(echo "$_authorizations_map" | grep -i "^$_idn_d,")"
+      _debug2 _candidates "$_candidates"
+      if [ "$(echo "$_candidates" | wc -l)" -gt 1 ]; then
+        for _can in $_candidates; do
+          if _startswith "$(echo "$_can" | tr '.' '|')" "$(echo "$_idn_d" | tr '.' '|'),"; then
+            _candidates="$_can"
+            break
+          fi
+        done
+      fi
+      response="$(echo "$_candidates" | sed "s/$_idn_d,//")"
+      _debug2 "response" "$response"
+      if [ -z "$response" ]; then
+        _err "get to authz error."
+        _err "_authorizations_map" "$_authorizations_map"
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
       fi
 
       if [ -z "$thumbprint" ]; then
@@ -4389,11 +4418,9 @@ $_authorizations_map"
           _on_issue_err "$_post_hook"
           return 1
         fi
-        if [ "$ACME_VERSION" = "2" ]; then
-          uri="$(echo "$entry" | _egrep_o '"url":"[^"]*' | cut -d '"' -f 4 | _head_n 1)"
-        else
-          uri="$(echo "$entry" | _egrep_o '"uri":"[^"]*' | cut -d '"' -f 4)"
-        fi
+
+        uri="$(echo "$entry" | _egrep_o '"url":"[^"]*' | cut -d '"' -f 4 | _head_n 1)"
+
         _debug uri "$uri"
 
         if [ -z "$uri" ]; then
@@ -4691,11 +4718,9 @@ $_authorizations_map"
       _debug "sleep 2 secs to verify"
       sleep 2
       _debug "checking"
-      if [ "$ACME_VERSION" = "2" ]; then
-        _send_signed_request "$uri"
-      else
-        response="$(_get "$uri")"
-      fi
+
+      _send_signed_request "$uri"
+
       if [ "$?" != "0" ]; then
         _err "$d:Verify error:$response"
         _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
@@ -4709,15 +4734,8 @@ $_authorizations_map"
       _debug2 response "$response"
 
       status=$(echo "$response" | _egrep_o '"status":"[^"]*' | cut -d : -f 2 | tr -d '"')
-      if [ "$status" = "valid" ]; then
-        _info "$(__green Success)"
-        _stopserver "$serverproc"
-        serverproc=""
-        _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
-        break
-      fi
 
-      if [ "$status" = "invalid" ]; then
+      if _contains "$status" "invalid"; then
         error="$(echo "$response" | _egrep_o '"error":\{[^\}]*')"
         _debug2 error "$error"
         errordetail="$(echo "$error" | _egrep_o '"detail": *"[^"]*' | cut -d '"' -f 4)"
@@ -4739,6 +4757,14 @@ $_authorizations_map"
         return 1
       fi
 
+      if _contains "$status" "valid"; then
+        _info "$(__green Success)"
+        _stopserver "$serverproc"
+        serverproc=""
+        _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
+        break
+      fi
+
       if [ "$status" = "pending" ]; then
         _info "Pending"
       elif [ "$status" = "processing" ]; then
@@ -4759,150 +4785,127 @@ $_authorizations_map"
   _info "Verify finished, start to sign."
   der="$(_getfile "${CSR_PATH}" "${BEGIN_CSR}" "${END_CSR}" | tr -d "\r\n" | _url_replace)"
 
-  if [ "$ACME_VERSION" = "2" ]; then
-    _info "Lets finalize the order."
-    _info "Le_OrderFinalize" "$Le_OrderFinalize"
-    if ! _send_signed_request "${Le_OrderFinalize}" "{\"csr\": \"$der\"}"; then
-      _err "Sign failed."
-      _on_issue_err "$_post_hook"
-      return 1
-    fi
-    if [ "$code" != "200" ]; then
-      _err "Sign failed, finalize code is not 200."
-      _err "$response"
-      _on_issue_err "$_post_hook"
-      return 1
-    fi
-    if [ -z "$Le_LinkOrder" ]; then
-      Le_LinkOrder="$(echo "$responseHeaders" | grep -i '^Location.*$' | _tail_n 1 | tr -d "\r\n \t" | cut -d ":" -f 2-)"
-    fi
+  _info "Lets finalize the order."
+  _info "Le_OrderFinalize" "$Le_OrderFinalize"
+  if ! _send_signed_request "${Le_OrderFinalize}" "{\"csr\": \"$der\"}"; then
+    _err "Sign failed."
+    _on_issue_err "$_post_hook"
+    return 1
+  fi
+  if [ "$code" != "200" ]; then
+    _err "Sign failed, finalize code is not 200."
+    _err "$response"
+    _on_issue_err "$_post_hook"
+    return 1
+  fi
+  if [ -z "$Le_LinkOrder" ]; then
+    Le_LinkOrder="$(echo "$responseHeaders" | grep -i '^Location.*$' | _tail_n 1 | tr -d "\r\n \t" | cut -d ":" -f 2-)"
+  fi
 
-    _savedomainconf "Le_LinkOrder" "$Le_LinkOrder"
+  _savedomainconf "Le_LinkOrder" "$Le_LinkOrder"
 
-    _link_cert_retry=0
-    _MAX_CERT_RETRY=30
-    while [ "$_link_cert_retry" -lt "$_MAX_CERT_RETRY" ]; do
-      if _contains "$response" "\"status\":\"valid\""; then
-        _debug "Order status is valid."
-        Le_LinkCert="$(echo "$response" | _egrep_o '"certificate" *: *"[^"]*"' | cut -d '"' -f 4)"
-        _debug Le_LinkCert "$Le_LinkCert"
-        if [ -z "$Le_LinkCert" ]; then
-          _err "Sign error, can not find Le_LinkCert"
-          _err "$response"
-          _on_issue_err "$_post_hook"
-          return 1
-        fi
-        break
-      elif _contains "$response" "\"processing\""; then
-        _info "Order status is processing, lets sleep and retry."
-        _retryafter=$(echo "$responseHeaders" | grep -i "^Retry-After *:" | cut -d : -f 2 | tr -d ' ' | tr -d '\r')
-        _debug "_retryafter" "$_retryafter"
-        if [ "$_retryafter" ]; then
-          _info "Retry after: $_retryafter"
-          _sleep $_retryafter
-        else
-          _sleep 2
-        fi
-      else
-        _err "Sign error, wrong status"
+  _link_cert_retry=0
+  _MAX_CERT_RETRY=30
+  while [ "$_link_cert_retry" -lt "$_MAX_CERT_RETRY" ]; do
+    if _contains "$response" "\"status\":\"valid\""; then
+      _debug "Order status is valid."
+      Le_LinkCert="$(echo "$response" | _egrep_o '"certificate" *: *"[^"]*"' | cut -d '"' -f 4)"
+      _debug Le_LinkCert "$Le_LinkCert"
+      if [ -z "$Le_LinkCert" ]; then
+        _err "Sign error, can not find Le_LinkCert"
         _err "$response"
         _on_issue_err "$_post_hook"
         return 1
       fi
-      #the order is processing, so we are going to poll order status
-      if [ -z "$Le_LinkOrder" ]; then
-        _err "Sign error, can not get order link location header"
-        _err "responseHeaders" "$responseHeaders"
-        _on_issue_err "$_post_hook"
-        return 1
-      fi
-      _info "Polling order status: $Le_LinkOrder"
-      if ! _send_signed_request "$Le_LinkOrder"; then
-        _err "Sign failed, can not post to Le_LinkOrder cert:$Le_LinkOrder."
-        _err "$response"
-        _on_issue_err "$_post_hook"
-        return 1
+      break
+    elif _contains "$response" "\"processing\""; then
+      _info "Order status is processing, lets sleep and retry."
+      _retryafter=$(echo "$responseHeaders" | grep -i "^Retry-After *:" | cut -d : -f 2 | tr -d ' ' | tr -d '\r')
+      _debug "_retryafter" "$_retryafter"
+      if [ "$_retryafter" ]; then
+        _info "Retry after: $_retryafter"
+        _sleep $_retryafter
+      else
+        _sleep 2
       fi
-      _link_cert_retry="$(_math $_link_cert_retry + 1)"
-    done
-
-    if [ -z "$Le_LinkCert" ]; then
-      _err "Sign failed, can not get Le_LinkCert, retry time limit."
+    else
+      _err "Sign error, wrong status"
       _err "$response"
       _on_issue_err "$_post_hook"
       return 1
     fi
-    _info "Downloading cert."
-    _info "Le_LinkCert" "$Le_LinkCert"
-    if ! _send_signed_request "$Le_LinkCert"; then
-      _err "Sign failed, can not download cert:$Le_LinkCert."
+    #the order is processing, so we are going to poll order status
+    if [ -z "$Le_LinkOrder" ]; then
+      _err "Sign error, can not get order link location header"
+      _err "responseHeaders" "$responseHeaders"
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    _info "Polling order status: $Le_LinkOrder"
+    if ! _send_signed_request "$Le_LinkOrder"; then
+      _err "Sign failed, can not post to Le_LinkOrder cert:$Le_LinkOrder."
       _err "$response"
       _on_issue_err "$_post_hook"
       return 1
     fi
+    _link_cert_retry="$(_math $_link_cert_retry + 1)"
+  done
 
-    echo "$response" >"$CERT_PATH"
-    _split_cert_chain "$CERT_PATH" "$CERT_FULLCHAIN_PATH" "$CA_CERT_PATH"
+  if [ -z "$Le_LinkCert" ]; then
+    _err "Sign failed, can not get Le_LinkCert, retry time limit."
+    _err "$response"
+    _on_issue_err "$_post_hook"
+    return 1
+  fi
+  _info "Downloading cert."
+  _info "Le_LinkCert" "$Le_LinkCert"
+  if ! _send_signed_request "$Le_LinkCert"; then
+    _err "Sign failed, can not download cert:$Le_LinkCert."
+    _err "$response"
+    _on_issue_err "$_post_hook"
+    return 1
+  fi
 
-    if [ "$_preferred_chain" ] && [ -f "$CERT_FULLCHAIN_PATH" ]; then
-      if [ "$DEBUG" ]; then
-        _debug "default chain issuers: " "$(_get_chain_issuers "$CERT_FULLCHAIN_PATH")"
-      fi
-      if ! _match_issuer "$CERT_FULLCHAIN_PATH" "$_preferred_chain"; then
-        rels="$(echo "$responseHeaders" | tr -d ' <>' | grep -i "^link:" | grep -i 'rel="alternate"' | cut -d : -f 2- | cut -d ';' -f 1)"
-        _debug2 "rels" "$rels"
-        for rel in $rels; do
-          _info "Try rel: $rel"
-          if ! _send_signed_request "$rel"; then
-            _err "Sign failed, can not download cert:$rel"
-            _err "$response"
-            continue
-          fi
-          _relcert="$CERT_PATH.alt"
-          _relfullchain="$CERT_FULLCHAIN_PATH.alt"
-          _relca="$CA_CERT_PATH.alt"
-          echo "$response" >"$_relcert"
-          _split_cert_chain "$_relcert" "$_relfullchain" "$_relca"
-          if [ "$DEBUG" ]; then
-            _debug "rel chain issuers: " "$(_get_chain_issuers "$_relfullchain")"
-          fi
-          if _match_issuer "$_relfullchain" "$_preferred_chain"; then
-            _info "Matched issuer in: $rel"
-            cat $_relcert >"$CERT_PATH"
-            cat $_relfullchain >"$CERT_FULLCHAIN_PATH"
-            cat $_relca >"$CA_CERT_PATH"
-            rm -f "$_relcert"
-            rm -f "$_relfullchain"
-            rm -f "$_relca"
-            break
-          fi
+  echo "$response" >"$CERT_PATH"
+  _split_cert_chain "$CERT_PATH" "$CERT_FULLCHAIN_PATH" "$CA_CERT_PATH"
+
+  if [ "$_preferred_chain" ] && [ -f "$CERT_FULLCHAIN_PATH" ]; then
+    if [ "$DEBUG" ]; then
+      _debug "default chain issuers: " "$(_get_chain_issuers "$CERT_FULLCHAIN_PATH")"
+    fi
+    if ! _match_issuer "$CERT_FULLCHAIN_PATH" "$_preferred_chain"; then
+      rels="$(echo "$responseHeaders" | tr -d ' <>' | grep -i "^link:" | grep -i 'rel="alternate"' | cut -d : -f 2- | cut -d ';' -f 1)"
+      _debug2 "rels" "$rels"
+      for rel in $rels; do
+        _info "Try rel: $rel"
+        if ! _send_signed_request "$rel"; then
+          _err "Sign failed, can not download cert:$rel"
+          _err "$response"
+          continue
+        fi
+        _relcert="$CERT_PATH.alt"
+        _relfullchain="$CERT_FULLCHAIN_PATH.alt"
+        _relca="$CA_CERT_PATH.alt"
+        echo "$response" >"$_relcert"
+        _split_cert_chain "$_relcert" "$_relfullchain" "$_relca"
+        if [ "$DEBUG" ]; then
+          _debug "rel chain issuers: " "$(_get_chain_issuers "$_relfullchain")"
+        fi
+        if _match_issuer "$_relfullchain" "$_preferred_chain"; then
+          _info "Matched issuer in: $rel"
+          cat $_relcert >"$CERT_PATH"
+          cat $_relfullchain >"$CERT_FULLCHAIN_PATH"
+          cat $_relca >"$CA_CERT_PATH"
           rm -f "$_relcert"
           rm -f "$_relfullchain"
           rm -f "$_relca"
-        done
-      fi
-    fi
-  else
-    if ! _send_signed_request "${ACME_NEW_ORDER}" "{\"resource\": \"$ACME_NEW_ORDER_RES\", \"csr\": \"$der\"}" "needbase64"; then
-      _err "Sign failed. $response"
-      _on_issue_err "$_post_hook"
-      return 1
-    fi
-    _rcert="$response"
-    Le_LinkCert="$(grep -i '^Location.*$' "$HTTP_HEADER" | _tail_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
-    echo "$BEGIN_CERT" >"$CERT_PATH"
-
-    #if ! _get "$Le_LinkCert" | _base64 "multiline"  >> "$CERT_PATH" ; then
-    #  _debug "Get cert failed. Let's try last response."
-    #  printf -- "%s" "$_rcert" | _dbase64 "multiline" | _base64 "multiline" >> "$CERT_PATH"
-    #fi
-
-    if ! printf -- "%s" "$_rcert" | _dbase64 "multiline" | _base64 "multiline" >>"$CERT_PATH"; then
-      _debug "Try cert link."
-      _get "$Le_LinkCert" | _base64 "multiline" >>"$CERT_PATH"
+          break
+        fi
+        rm -f "$_relcert"
+        rm -f "$_relfullchain"
+        rm -f "$_relca"
+      done
     fi
-
-    echo "$END_CERT" >>"$CERT_PATH"
   fi
 
   _debug "Le_LinkCert" "$Le_LinkCert"
@@ -4931,53 +4934,6 @@ $_authorizations_map"
     fi
   fi
 
-  if [ "$ACME_VERSION" = "2" ]; then
-    _debug "v2 chain."
-  else
-    cp "$CERT_PATH" "$CERT_FULLCHAIN_PATH"
-    Le_LinkIssuer=$(grep -i '^Link' "$HTTP_HEADER" | _head_n 1 | cut -d " " -f 2 | cut -d ';' -f 1 | tr -d '<>')
-
-    if [ "$Le_LinkIssuer" ]; then
-      if ! _contains "$Le_LinkIssuer" ":"; then
-        _info "$(__red "Relative issuer link found.")"
-        Le_LinkIssuer="$_ACME_SERVER_HOST$Le_LinkIssuer"
-      fi
-      _debug Le_LinkIssuer "$Le_LinkIssuer"
-      _savedomainconf "Le_LinkIssuer" "$Le_LinkIssuer"
-
-      _link_issuer_retry=0
-      _MAX_ISSUER_RETRY=5
-      while [ "$_link_issuer_retry" -lt "$_MAX_ISSUER_RETRY" ]; do
-        _debug _link_issuer_retry "$_link_issuer_retry"
-        if [ "$ACME_VERSION" = "2" ]; then
-          if _send_signed_request "$Le_LinkIssuer"; then
-            echo "$response" >"$CA_CERT_PATH"
-            break
-          fi
-        else
-          if _get "$Le_LinkIssuer" >"$CA_CERT_PATH.der"; then
-            echo "$BEGIN_CERT" >"$CA_CERT_PATH"
-            _base64 "multiline" <"$CA_CERT_PATH.der" >>"$CA_CERT_PATH"
-            echo "$END_CERT" >>"$CA_CERT_PATH"
-            if ! _checkcert "$CA_CERT_PATH"; then
-              _err "Can not get the ca cert."
-              break
-            fi
-            cat "$CA_CERT_PATH" >>"$CERT_FULLCHAIN_PATH"
-            rm -f "$CA_CERT_PATH.der"
-            break
-          fi
-        fi
-        _link_issuer_retry=$(_math $_link_issuer_retry + 1)
-        _sleep "$_link_issuer_retry"
-      done
-      if [ "$_link_issuer_retry" = "$_MAX_ISSUER_RETRY" ]; then
-        _err "Max retry for issuer ca cert is reached."
-      fi
-    else
-      _debug "No Le_LinkIssuer header found."
-    fi
-  fi
   [ -f "$CA_CERT_PATH" ] && _info "The intermediate CA cert is in $(__green " $CA_CERT_PATH ")"
   [ -f "$CERT_FULLCHAIN_PATH" ] && _info "And the full chain certs is there: $(__green " $CERT_FULLCHAIN_PATH ")"
 
@@ -5090,17 +5046,16 @@ renew() {
 
   . "$DOMAIN_CONF"
   _debug Le_API "$Le_API"
-
-  if [ "$Le_API" = "$LETSENCRYPT_CA_V1" ]; then
-    _cleardomainconf Le_API
-    Le_API="$DEFAULT_CA"
-  fi
-  if [ "$Le_API" = "$LETSENCRYPT_STAGING_CA_V1" ]; then
-    _cleardomainconf Le_API
-    Le_API="$DEFAULT_STAGING_CA"
+  if [ -z "$Le_API" ]; then
+    #if this is from an old version, Le_API is empty,
+    #so, we force to use letsencrypt server
+    Le_API="$CA_LETSENCRYPT_V2"
   fi
 
   if [ "$Le_API" ]; then
+    if [ "$Le_API" != "$ACME_DIRECTORY" ]; then
+      _clearAPI
+    fi
     export ACME_DIRECTORY="$Le_API"
     #reload ca configs
     ACCOUNT_KEY_PATH=""
@@ -5108,6 +5063,7 @@ renew() {
     CA_CONF=""
     _debug3 "initpath again."
     _initpath "$Le_Domain" "$_isEcc"
+    _initAPI
   fi
 
   if [ -z "$FORCE" ] && [ "$Le_NextRenewTime" ] && [ "$(_time)" -lt "$Le_NextRenewTime" ]; then
@@ -5276,6 +5232,7 @@ signcsr() {
   _renew_hook="${10}"
   _local_addr="${11}"
   _challenge_alias="${12}"
+  _preferred_chain="${13}"
 
   _csrsubj=$(_readSubjectFromCSR "$_csrfile")
   if [ "$?" != "0" ]; then
@@ -5313,16 +5270,13 @@ signcsr() {
     return 1
   fi
 
-  if [ -z "$ACME_VERSION" ] && _contains "$_csrsubj,$_csrdomainlist" "*."; then
-    export ACME_VERSION=2
-  fi
   _initpath "$_csrsubj" "$_csrkeylength"
   mkdir -p "$DOMAIN_PATH"
 
   _info "Copy csr to: $CSR_PATH"
   cp "$_csrfile" "$CSR_PATH"
 
-  issue "$_csrW" "$_csrsubj" "$_csrdomainlist" "$_csrkeylength" "$_real_cert" "$_real_key" "$_real_ca" "$_reload_cmd" "$_real_fullchain" "$_pre_hook" "$_post_hook" "$_renew_hook" "$_local_addr" "$_challenge_alias"
+  issue "$_csrW" "$_csrsubj" "$_csrdomainlist" "$_csrkeylength" "$_real_cert" "$_real_key" "$_real_ca" "$_reload_cmd" "$_real_fullchain" "$_pre_hook" "$_post_hook" "$_renew_hook" "$_local_addr" "$_challenge_alias" "$_preferred_chain"
 
 }
 
@@ -5767,6 +5721,23 @@ revoke() {
     return 1
   fi
 
+  . "$DOMAIN_CONF"
+  _debug Le_API "$Le_API"
+
+  if [ "$Le_API" ]; then
+    if [ "$Le_API" != "$ACME_DIRECTORY" ]; then
+      _clearAPI
+    fi
+    export ACME_DIRECTORY="$Le_API"
+    #reload ca configs
+    ACCOUNT_KEY_PATH=""
+    ACCOUNT_JSON_PATH=""
+    CA_CONF=""
+    _debug3 "initpath again."
+    _initpath "$Le_Domain" "$_isEcc"
+    _initAPI
+  fi
+
   cert="$(_getfile "${CERT_PATH}" "${BEGIN_CERT}" "${END_CERT}" | tr -d "\r\n" | _url_replace)"
 
   if [ -z "$cert" ]; then
@@ -5776,11 +5747,8 @@ revoke() {
 
   _initAPI
 
-  if [ "$ACME_VERSION" = "2" ]; then
-    data="{\"certificate\": \"$cert\",\"reason\":$_reason}"
-  else
-    data="{\"resource\": \"revoke-cert\", \"certificate\": \"$cert\"}"
-  fi
+  data="{\"certificate\": \"$cert\",\"reason\":$_reason}"
+
   uri="${ACME_REVOKE_CERT}"
 
   if [ -f "$CERT_KEY_PATH" ]; then
@@ -5849,53 +5817,55 @@ remove() {
 _deactivate() {
   _d_domain="$1"
   _d_type="$2"
-  _initpath
+  _initpath "$_d_domain" "$_d_type"
 
-  if [ "$ACME_VERSION" = "2" ]; then
-    _identifiers="{\"type\":\"dns\",\"value\":\"$_d_domain\"}"
-    if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
-      _err "Can not get domain new order."
-      return 1
-    fi
-    _authorizations_seg="$(echo "$response" | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
-    _debug2 _authorizations_seg "$_authorizations_seg"
-    if [ -z "$_authorizations_seg" ]; then
-      _err "_authorizations_seg not found."
-      _clearup
-      _on_issue_err "$_post_hook"
-      return 1
-    fi
+  . "$DOMAIN_CONF"
+  _debug Le_API "$Le_API"
 
-    authzUri="$_authorizations_seg"
-    _debug2 "authzUri" "$authzUri"
-    if ! _send_signed_request "$authzUri"; then
-      _err "get to authz error."
-      _err "_authorizations_seg" "$_authorizations_seg"
-      _err "authzUri" "$authzUri"
-      _clearup
-      _on_issue_err "$_post_hook"
-      return 1
+  if [ "$Le_API" ]; then
+    if [ "$Le_API" != "$ACME_DIRECTORY" ]; then
+      _clearAPI
     fi
+    export ACME_DIRECTORY="$Le_API"
+    #reload ca configs
+    ACCOUNT_KEY_PATH=""
+    ACCOUNT_JSON_PATH=""
+    CA_CONF=""
+    _debug3 "initpath again."
+    _initpath "$Le_Domain" "$_d_type"
+    _initAPI
+  fi
 
-    response="$(echo "$response" | _normalizeJson)"
-    _debug2 response "$response"
-    _URL_NAME="url"
-  else
-    if ! __get_domain_new_authz "$_d_domain"; then
-      _err "Can not get domain new authz token."
-      return 1
-    fi
+  _identifiers="{\"type\":\"dns\",\"value\":\"$_d_domain\"}"
+  if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
+    _err "Can not get domain new order."
+    return 1
+  fi
+  _authorizations_seg="$(echo "$response" | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+  _debug2 _authorizations_seg "$_authorizations_seg"
+  if [ -z "$_authorizations_seg" ]; then
+    _err "_authorizations_seg not found."
+    _clearup
+    _on_issue_err "$_post_hook"
+    return 1
+  fi
 
-    authzUri="$(echo "$responseHeaders" | grep "^Location:" | _head_n 1 | cut -d ':' -f 2- | tr -d "\r\n")"
-    _debug "authzUri" "$authzUri"
-    if [ "$code" ] && [ ! "$code" = '201' ]; then
-      _err "new-authz error: $response"
-      return 1
-    fi
-    _URL_NAME="uri"
+  authzUri="$_authorizations_seg"
+  _debug2 "authzUri" "$authzUri"
+  if ! _send_signed_request "$authzUri"; then
+    _err "get to authz error."
+    _err "_authorizations_seg" "$_authorizations_seg"
+    _err "authzUri" "$authzUri"
+    _clearup
+    _on_issue_err "$_post_hook"
+    return 1
   fi
 
-  entries="$(echo "$response" | tr '][' '==' | _egrep_o "challenges\": *=[^=]*=" | tr '}{' '\n' | grep "\"status\": *\"valid\"")"
+  response="$(echo "$response" | _normalizeJson)"
+  _debug2 response "$response"
+  _URL_NAME="url"
+
+  entries="$(echo "$response" | tr '][' '==' | _egrep_o "challenges\": *=[^=]*=" | tr '}{' '\n\n' | grep "\"status\": *\"valid\"")"
   if [ -z "$entries" ]; then
     _info "No valid entries found."
     if [ -z "$thumbprint" ]; then
@@ -5948,11 +5918,7 @@ _deactivate() {
 
     _info "Deactivate: $_vtype"
 
-    if [ "$ACME_VERSION" = "2" ]; then
-      _djson="{\"status\":\"deactivated\"}"
-    else
-      _djson="{\"resource\": \"authz\", \"status\":\"deactivated\"}"
-    fi
+    _djson="{\"status\":\"deactivated\"}"
 
     if _send_signed_request "$authzUri" "$_djson" && _contains "$response" '"deactivated"'; then
       _info "Deactivate: $_vtype success."
@@ -6665,7 +6631,7 @@ _getRepoHash() {
   _hash_path=$1
   shift
   _hash_url="https://api.github.com/repos/acmesh-official/$PROJECT_NAME/git/refs/$_hash_path"
-  _get $_hash_url | tr -d "\r\n" | tr '{},' '\n' | grep '"sha":' | cut -d '"' -f 4
+  _get $_hash_url | tr -d "\r\n" | tr '{},' '\n\n\n' | grep '"sha":' | cut -d '"' -f 4
 }
 
 _getUpgradeHash() {
@@ -6738,9 +6704,10 @@ _checkSudo() {
   return 0
 }
 
-#server
+#server  #keylength
 _selectServer() {
   _server="$1"
+  _skeylength="$2"
   _server_lower="$(echo "$_server" | _lower_case)"
   _sindex=0
   for snames in $CA_NAMES; do
@@ -6751,6 +6718,9 @@ _selectServer() {
       if [ "$_server_lower" = "$sname" ]; then
         _debug2 "_selectServer match $sname"
         _serverdir="$(_getfield "$CA_SERVERS" $_sindex)"
+        if [ "$_serverdir" = "$CA_SSLCOM_RSA" ] && _isEccKey "$_skeylength"; then
+          _serverdir="$CA_SSLCOM_ECC"
+        fi
         _debug "Selected server: $_serverdir"
         ACME_DIRECTORY="$_serverdir"
         export ACME_DIRECTORY
@@ -6768,6 +6738,9 @@ _getCAShortName() {
   if [ -z "$caurl" ]; then
     caurl="$DEFAULT_CA"
   fi
+  if [ "$CA_SSLCOM_ECC" = "$caurl" ]; then
+    caurl="$CA_SSLCOM_RSA" #just hack to get the short name
+  fi
   caurl_lower="$(echo $caurl | _lower_case)"
   _sindex=0
   for surl in $(echo "$CA_SERVERS" | _lower_case | tr , ' '); do
@@ -6960,10 +6933,6 @@ _process() {
           return 1
         fi
 
-        if _startswith "$_dvalue" "*."; then
-          _debug "Wildcard domain"
-          export ACME_VERSION=2
-        fi
         if [ -z "$_domain" ]; then
           _domain="$_dvalue"
         else
@@ -6986,7 +6955,6 @@ _process() {
       ;;
     --server)
       _server="$2"
-      _selectServer "$_server"
       shift
       ;;
     --debug)
@@ -7085,7 +7053,6 @@ _process() {
       Le_DNSSleep="$_dnssleep"
       shift
       ;;
-
     --keylength | -k)
       _keylength="$2"
       shift
@@ -7094,7 +7061,6 @@ _process() {
       _accountkeylength="$2"
       shift
       ;;
-
     --cert-file | --certpath)
       _cert_file="$2"
       shift
@@ -7361,6 +7327,10 @@ _process() {
     shift 1
   done
 
+  if [ "$_server" ]; then
+    _selectServer "$_server" "${_ecc:-$_keylength}"
+  fi
+
   if [ "${_CMD}" != "install" ]; then
     if [ "$__INTERACTIVE" ] && ! _checkSudo; then
       if [ -z "$FORCE" ]; then
@@ -7424,7 +7394,7 @@ _process() {
     deploy "$_domain" "$_deploy_hook" "$_ecc"
     ;;
   signcsr)
-    signcsr "$_csr" "$_webroot" "$_cert_file" "$_key_file" "$_ca_file" "$_reloadcmd" "$_fullchain_file" "$_pre_hook" "$_post_hook" "$_renew_hook" "$_local_address" "$_challenge_alias"
+    signcsr "$_csr" "$_webroot" "$_cert_file" "$_key_file" "$_ca_file" "$_reloadcmd" "$_fullchain_file" "$_pre_hook" "$_post_hook" "$_renew_hook" "$_local_address" "$_challenge_alias" "$_preferred_chain"
     ;;
   showcsr)
     showcsr "$_csr" "$_domain"
diff --git a/deploy/cleverreach.sh b/deploy/cleverreach.sh
index 552d8149..a460a139 100644
--- a/deploy/cleverreach.sh
+++ b/deploy/cleverreach.sh
@@ -17,6 +17,8 @@ cleverreach_deploy() {
   _cca="$4"
   _cfullchain="$5"
 
+  _rest_endpoint="https://rest.cleverreach.com"
+
   _debug _cdomain "$_cdomain"
   _debug _ckey "$_ckey"
   _debug _ccert "$_ccert"
@@ -25,6 +27,7 @@ cleverreach_deploy() {
 
   _getdeployconf DEPLOY_CLEVERREACH_CLIENT_ID
   _getdeployconf DEPLOY_CLEVERREACH_CLIENT_SECRET
+  _getdeployconf DEPLOY_CLEVERREACH_SUBCLIENT_ID
 
   if [ -z "${DEPLOY_CLEVERREACH_CLIENT_ID}" ]; then
     _err "CleverReach Client ID is not found, please define DEPLOY_CLEVERREACH_CLIENT_ID."
@@ -37,11 +40,12 @@ cleverreach_deploy() {
 
   _savedeployconf DEPLOY_CLEVERREACH_CLIENT_ID "${DEPLOY_CLEVERREACH_CLIENT_ID}"
   _savedeployconf DEPLOY_CLEVERREACH_CLIENT_SECRET "${DEPLOY_CLEVERREACH_CLIENT_SECRET}"
+  _savedeployconf DEPLOY_CLEVERREACH_SUBCLIENT_ID "${DEPLOY_CLEVERREACH_SUBCLIENT_ID}"
 
   _info "Obtaining a CleverReach access token"
 
   _data="{\"grant_type\": \"client_credentials\", \"client_id\": \"${DEPLOY_CLEVERREACH_CLIENT_ID}\", \"client_secret\": \"${DEPLOY_CLEVERREACH_CLIENT_SECRET}\"}"
-  _auth_result="$(_post "$_data" "https://rest.cleverreach.com/oauth/token.php" "" "POST" "application/json")"
+  _auth_result="$(_post "$_data" "$_rest_endpoint/oauth/token.php" "" "POST" "application/json")"
 
   _debug _data "$_data"
   _debug _auth_result "$_auth_result"
@@ -50,14 +54,32 @@ cleverreach_deploy() {
   _debug _regex "$_regex"
   _access_token=$(echo "$_auth_result" | _json_decode | sed -n "s/$_regex/\1/p")
 
+  _debug _subclient "${DEPLOY_CLEVERREACH_SUBCLIENT_ID}"
+
+  if [ -n "${DEPLOY_CLEVERREACH_SUBCLIENT_ID}" ]; then
+    _info "Obtaining token for sub-client ${DEPLOY_CLEVERREACH_SUBCLIENT_ID}"
+    export _H1="Authorization: Bearer ${_access_token}"
+    _subclient_token_result="$(_get "$_rest_endpoint/v3/clients/$DEPLOY_CLEVERREACH_SUBCLIENT_ID/token")"
+    _access_token=$(echo "$_subclient_token_result" | sed -n "s/\"//p")
+
+    _debug _subclient_token_result "$_access_token"
+
+    _info "Destroying parent token at CleverReach, as it not needed anymore"
+    _destroy_result="$(_post "" "$_rest_endpoint/v3/oauth/token.json" "" "DELETE" "application/json")"
+    _debug _destroy_result "$_destroy_result"
+  fi
+
   _info "Uploading certificate and key to CleverReach"
 
   _certData="{\"cert\":\"$(_json_encode <"$_cfullchain")\", \"key\":\"$(_json_encode <"$_ckey")\"}"
   export _H1="Authorization: Bearer ${_access_token}"
-  _add_cert_result="$(_post "$_certData" "https://rest.cleverreach.com/v3/ssl" "" "POST" "application/json")"
+  _add_cert_result="$(_post "$_certData" "$_rest_endpoint/v3/ssl" "" "POST" "application/json")"
 
-  _debug "Destroying token at CleverReach"
-  _post "" "https://rest.cleverreach.com/v3/oauth/token.json" "" "DELETE" "application/json"
+  if [ -z "${DEPLOY_CLEVERREACH_SUBCLIENT_ID}" ]; then
+    _info "Destroying token at CleverReach, as it not needed anymore"
+    _destroy_result="$(_post "" "$_rest_endpoint/v3/oauth/token.json" "" "DELETE" "application/json")"
+    _debug _destroy_result "$_destroy_result"
+  fi
 
   if ! echo "$_add_cert_result" | grep '"error":' >/dev/null; then
     _info "Uploaded certificate successfully"
diff --git a/deploy/consul.sh b/deploy/consul.sh
new file mode 100644
index 00000000..f93fb452
--- /dev/null
+++ b/deploy/consul.sh
@@ -0,0 +1,98 @@
+#!/usr/bin/env sh
+
+# Here is a script to deploy cert to hashicorp consul using curl
+# (https://www.consul.io/)
+#
+# it requires following environment variables:
+#
+# CONSUL_PREFIX - this contains the prefix path in consul
+# CONSUL_HTTP_ADDR - consul requires this to find your consul server
+#
+# additionally, you need to ensure that CONSUL_HTTP_TOKEN is available
+# to access the consul server
+
+#returns 0 means success, otherwise error.
+
+########  Public functions #####################
+
+#domain keyfile certfile cafile fullchain
+consul_deploy() {
+
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  _debug _cdomain "$_cdomain"
+  _debug _ckey "$_ckey"
+  _debug _ccert "$_ccert"
+  _debug _cca "$_cca"
+  _debug _cfullchain "$_cfullchain"
+
+  # validate required env vars
+  _getdeployconf CONSUL_PREFIX
+  if [ -z "$CONSUL_PREFIX" ]; then
+    _err "CONSUL_PREFIX needs to be defined (contains prefix path in vault)"
+    return 1
+  fi
+  _savedeployconf CONSUL_PREFIX "$CONSUL_PREFIX"
+
+  _getdeployconf CONSUL_HTTP_ADDR
+  if [ -z "$CONSUL_HTTP_ADDR" ]; then
+    _err "CONSUL_HTTP_ADDR needs to be defined (contains consul connection address)"
+    return 1
+  fi
+  _savedeployconf CONSUL_HTTP_ADDR "$CONSUL_HTTP_ADDR"
+
+  CONSUL_CMD=$(command -v consul)
+
+  # force CLI, but the binary does not exist => error
+  if [ -n "$USE_CLI" ] && [ -z "$CONSUL_CMD" ]; then
+    _err "Cannot find the consul binary!"
+    return 1
+  fi
+
+  # use the CLI first
+  if [ -n "$USE_CLI" ] || [ -n "$CONSUL_CMD" ]; then
+    _info "Found consul binary, deploying with CLI"
+    consul_deploy_cli "$CONSUL_CMD" "$CONSUL_PREFIX"
+  else
+    _info "Did not find consul binary, deploying with API"
+    consul_deploy_api "$CONSUL_HTTP_ADDR" "$CONSUL_PREFIX" "$CONSUL_HTTP_TOKEN"
+  fi
+}
+
+consul_deploy_api() {
+  CONSUL_HTTP_ADDR="$1"
+  CONSUL_PREFIX="$2"
+  CONSUL_HTTP_TOKEN="$3"
+
+  URL="$CONSUL_HTTP_ADDR/v1/kv/$CONSUL_PREFIX"
+  export _H1="X-Consul-Token: $CONSUL_HTTP_TOKEN"
+
+  if [ -n "$FABIO" ]; then
+    _post "$(cat "$_cfullchain")" "$URL/${_cdomain}-cert.pem" '' "PUT" || return 1
+    _post "$(cat "$_ckey")" "$URL/${_cdomain}-key.pem" '' "PUT" || return 1
+  else
+    _post "$(cat "$_ccert")" "$URL/${_cdomain}/cert.pem" '' "PUT" || return 1
+    _post "$(cat "$_ckey")" "$URL/${_cdomain}/cert.key" '' "PUT" || return 1
+    _post "$(cat "$_cca")" "$URL/${_cdomain}/chain.pem" '' "PUT" || return 1
+    _post "$(cat "$_cfullchain")" "$URL/${_cdomain}/fullchain.pem" '' "PUT" || return 1
+  fi
+}
+
+consul_deploy_cli() {
+  CONSUL_CMD="$1"
+  CONSUL_PREFIX="$2"
+
+  if [ -n "$FABIO" ]; then
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}-cert.pem" @"$_cfullchain" || return 1
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}-key.pem" @"$_ckey" || return 1
+  else
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}/cert.pem" value=@"$_ccert" || return 1
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}/cert.key" value=@"$_ckey" || return 1
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}/chain.pem" value=@"$_cca" || return 1
+    $CONSUL_CMD kv put "${CONSUL_PREFIX}/${_cdomain}/fullchain.pem" value=@"$_cfullchain" || return 1
+  fi
+}
diff --git a/deploy/gcore_cdn.sh b/deploy/gcore_cdn.sh
index a2a35f7b..f573a3aa 100644
--- a/deploy/gcore_cdn.sh
+++ b/deploy/gcore_cdn.sh
@@ -56,9 +56,9 @@ gcore_cdn_deploy() {
   _request="{\"username\":\"$Le_Deploy_gcore_cdn_username\",\"password\":\"$Le_Deploy_gcore_cdn_password\"}"
   _debug _request "$_request"
   export _H1="Content-Type:application/json"
-  _response=$(_post "$_request" "https://api.gcdn.co/auth/signin")
+  _response=$(_post "$_request" "https://api.gcdn.co/auth/jwt/login")
   _debug _response "$_response"
-  _regex=".*\"token\":\"\([-._0-9A-Za-z]*\)\".*$"
+  _regex=".*\"access\":\"\([-._0-9A-Za-z]*\)\".*$"
   _debug _regex "$_regex"
   _token=$(echo "$_response" | sed -n "s/$_regex/\1/p")
   _debug _token "$_token"
@@ -72,12 +72,15 @@ gcore_cdn_deploy() {
   export _H2="Authorization:Token $_token"
   _response=$(_get "https://api.gcdn.co/resources")
   _debug _response "$_response"
-  _regex=".*(\"id\".*?\"cname\":\"$_cdomain\".*?})"
+  _regex="\"primary_resource\":null},"
+  _debug _regex "$_regex"
+  _response=$(echo "$_response" | sed "s/$_regex/$_regex\n/g")
+  _debug _response "$_response"
   _regex="^.*\"cname\":\"$_cdomain\".*$"
   _debug _regex "$_regex"
-  _resource=$(echo "$_response" | sed 's/},{/},\n{/g' | _egrep_o "$_regex")
+  _resource=$(echo "$_response" | _egrep_o "$_regex")
   _debug _resource "$_resource"
-  _regex=".*\"id\":\([0-9]*\).*\"rules\".*$"
+  _regex=".*\"id\":\([0-9]*\).*$"
   _debug _regex "$_regex"
   _resourceId=$(echo "$_resource" | sed -n "s/$_regex/\1/p")
   _debug _resourceId "$_resourceId"
diff --git a/deploy/synology_dsm.sh b/deploy/synology_dsm.sh
index 35d33209..5a70c74e 100644
--- a/deploy/synology_dsm.sh
+++ b/deploy/synology_dsm.sh
@@ -66,6 +66,12 @@ synology_dsm_deploy() {
   _getdeployconf SYNO_Certificate
   _debug SYNO_Certificate "${SYNO_Certificate:-}"
 
+  # shellcheck disable=SC1003 # We are not trying to escape a single quote
+  if printf "%s" "$SYNO_Certificate" | grep '\\'; then
+    _err "Do not use a backslash (\) in your certificate description"
+    return 1
+  fi
+
   _base_url="$SYNO_Scheme://$SYNO_Hostname:$SYNO_Port"
   _debug _base_url "$_base_url"
 
@@ -110,7 +116,9 @@ synology_dsm_deploy() {
   _info "Getting certificates in Synology DSM"
   response=$(_post "api=SYNO.Core.Certificate.CRT&method=list&version=1&_sid=$sid" "$_base_url/webapi/entry.cgi")
   _debug3 response "$response"
-  id=$(echo "$response" | sed -n "s/.*\"desc\":\"$SYNO_Certificate\",\"id\":\"\([^\"]*\).*/\1/p")
+  escaped_certificate="$(printf "%s" "$SYNO_Certificate" | sed 's/\([].*^$[]\)/\\\1/g;s/"/\\\\"/g')"
+  _debug escaped_certificate "$escaped_certificate"
+  id=$(echo "$response" | sed -n "s/.*\"desc\":\"$escaped_certificate\",\"id\":\"\([^\"]*\).*/\1/p")
   _debug2 id "$id"
 
   if [ -z "$id" ] && [ -z "${SYNO_Create:-}" ]; then
@@ -119,13 +127,7 @@ synology_dsm_deploy() {
   fi
 
   # we've verified this certificate description is a thing, so save it
-  _savedeployconf SYNO_Certificate "$SYNO_Certificate"
-
-  default=false
-  if echo "$response" | sed -n "s/.*\"desc\":\"$SYNO_Certificate\",\([^{]*\).*/\1/p" | grep -- 'is_default":true' >/dev/null; then
-    default=true
-  fi
-  _debug2 default "$default"
+  _savedeployconf SYNO_Certificate "$SYNO_Certificate" "base64"
 
   _info "Generate form POST request"
   nl="\0015\0012"
@@ -135,7 +137,12 @@ synology_dsm_deploy() {
   content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"inter_cert\"; filename=\"$(basename "$_cca")\"${nl}Content-Type: application/octet-stream${nl}${nl}$(cat "$_cca")\0012"
   content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"id\"${nl}${nl}$id"
   content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"desc\"${nl}${nl}${SYNO_Certificate}"
-  content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"as_default\"${nl}${nl}${default}"
+  if echo "$response" | sed -n "s/.*\"desc\":\"$escaped_certificate\",\([^{]*\).*/\1/p" | grep -- 'is_default":true' >/dev/null; then
+    _debug2 default "this is the default certificate"
+    content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"as_default\"${nl}${nl}true"
+  else
+    _debug2 default "this is NOT the default certificate"
+  fi
   content="$content${nl}--$delim--${nl}"
   content="$(printf "%b_" "$content")"
   content="${content%_}" # protect trailing \n
diff --git a/deploy/vault_cli.sh b/deploy/vault_cli.sh
index 8b854137..cbb8cc59 100644
--- a/deploy/vault_cli.sh
+++ b/deploy/vault_cli.sh
@@ -50,12 +50,12 @@ vault_cli_deploy() {
   fi
 
   if [ -n "$FABIO" ]; then
-    $VAULT_CMD write "${VAULT_PREFIX}/${_cdomain}" cert=@"$_cfullchain" key=@"$_ckey" || return 1
+    $VAULT_CMD kv put "${VAULT_PREFIX}/${_cdomain}" cert=@"$_cfullchain" key=@"$_ckey" || return 1
   else
-    $VAULT_CMD write "${VAULT_PREFIX}/${_cdomain}/cert.pem" value=@"$_ccert" || return 1
-    $VAULT_CMD write "${VAULT_PREFIX}/${_cdomain}/cert.key" value=@"$_ckey" || return 1
-    $VAULT_CMD write "${VAULT_PREFIX}/${_cdomain}/chain.pem" value=@"$_cca" || return 1
-    $VAULT_CMD write "${VAULT_PREFIX}/${_cdomain}/fullchain.pem" value=@"$_cfullchain" || return 1
+    $VAULT_CMD kv put "${VAULT_PREFIX}/${_cdomain}/cert.pem" value=@"$_ccert" || return 1
+    $VAULT_CMD kv put "${VAULT_PREFIX}/${_cdomain}/cert.key" value=@"$_ckey" || return 1
+    $VAULT_CMD kv put "${VAULT_PREFIX}/${_cdomain}/chain.pem" value=@"$_cca" || return 1
+    $VAULT_CMD kv put "${VAULT_PREFIX}/${_cdomain}/fullchain.pem" value=@"$_cfullchain" || return 1
   fi
 
 }
diff --git a/dnsapi/dns_1984hosting.sh b/dnsapi/dns_1984hosting.sh
index d720c1c5..8fa6e06e 100755
--- a/dnsapi/dns_1984hosting.sh
+++ b/dnsapi/dns_1984hosting.sh
@@ -59,7 +59,7 @@ dns_1984hosting_add() {
   if _contains "$response" '"haserrors": true'; then
     _err "1984Hosting failed to add TXT record for $_sub_domain bad RC from _post"
     return 1
-  elif _contains "$response" "<html>"; then
+  elif _contains "$response" "html>"; then
     _err "1984Hosting failed to add TXT record for $_sub_domain. Check $HTTP_HEADER file"
     return 1
   elif _contains "$response" '"auth": false'; then
@@ -145,7 +145,7 @@ _1984hosting_login() {
   password=$(printf '%s' "$One984HOSTING_Password" | _url_encode)
   url="https://management.1984hosting.com/accounts/checkuserauth/"
 
-  response="$(_post "username=$username&password=$password&otpkey=" "$url")"
+  response="$(_post "username=$username&password=$password&otpkey=" $url)"
   response="$(echo "$response" | _normalizeJson)"
   _debug2 response "$response"
 
@@ -177,7 +177,6 @@ _check_cookie() {
   fi
 
   _authget "https://management.1984hosting.com/accounts/loginstatus/"
-  response="$(echo "$_response" | _normalizeJson)"
   if _contains "$response" '"ok": true'; then
     _debug "Cached cookie still valid"
     return 0
@@ -194,7 +193,7 @@ _check_cookie() {
 # _domain=domain.com
 _get_root() {
   domain="$1"
-  i=2
+  i=1
   p=1
   while true; do
     h=$(printf "%s" "$domain" | cut -d . -f $i-100)
@@ -205,7 +204,7 @@ _get_root() {
     fi
 
     _authget "https://management.1984hosting.com/domains/soacheck/?zone=$h&nameserver=ns0.1984.is."
-    if _contains "$_response" "serial"; then
+    if _contains "$_response" "serial" && ! _contains "$_response" "null"; then
       _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
       _domain="$h"
       return 0
@@ -219,7 +218,8 @@ _get_root() {
 # add extra headers to request
 _authget() {
   export _H1="Cookie: $One984HOSTING_COOKIE"
-  _response=$(_get "$1")
+  _response=$(_get "$1" | _normalizeJson)
+  _debug2 _response "$_response"
 }
 
 # truncate huge HTML response
diff --git a/dnsapi/dns_aurora.sh b/dnsapi/dns_aurora.sh
new file mode 100644
index 00000000..00f44739
--- /dev/null
+++ b/dnsapi/dns_aurora.sh
@@ -0,0 +1,171 @@
+#!/usr/bin/env sh
+
+#
+#AURORA_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
+#
+#AURORA_Secret="sdfsdfsdfljlbjkljlkjsdfoiwje"
+
+AURORA_Api="https://api.auroradns.eu"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_aurora_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
+  AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"
+
+  if [ -z "$AURORA_Key" ] || [ -z "$AURORA_Secret" ]; then
+    AURORA_Key=""
+    AURORA_Secret=""
+    _err "You didn't specify an Aurora api key and secret yet."
+    _err "You can get yours from here https://cp.pcextreme.nl/auroradns/users."
+    return 1
+  fi
+
+  #save the api key and secret to the account conf file.
+  _saveaccountconf_mutable AURORA_Key "$AURORA_Key"
+  _saveaccountconf_mutable AURORA_Secret "$AURORA_Secret"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+  if _aurora_rest POST "zones/$_domain_id/records" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":300}"; then
+    if _contains "$response" "$txtvalue"; then
+      _info "Added, OK"
+      return 0
+    elif _contains "$response" "RecordExistsError"; then
+      _info "Already exists, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+#fulldomain txtvalue
+dns_aurora_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
+  AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _debug "Getting records"
+  _aurora_rest GET "zones/${_domain_id}/records"
+
+  if ! _contains "$response" "$txtvalue"; then
+    _info "Don't need to remove."
+  else
+    records=$(echo "$response" | _normalizeJson | tr -d "[]" | sed "s/},{/}|{/g" | tr "|" "\n")
+    if [ "$(echo "$records" | wc -l)" -le 2 ]; then
+      _err "Can not parse records."
+      return 1
+    fi
+    record_id=$(echo "$records" | grep "\"type\": *\"TXT\"" | grep "\"name\": *\"$_sub_domain\"" | grep "\"content\": *\"$txtvalue\"" | _egrep_o "\"id\": *\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
+    _debug "record_id" "$record_id"
+    if [ -z "$record_id" ]; then
+      _err "Can not get record id to remove."
+      return 1
+    fi
+    if ! _aurora_rest DELETE "zones/$_domain_id/records/$record_id"; then
+      _err "Delete record error."
+      return 1
+    fi
+  fi
+  return 0
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if ! _aurora_rest GET "zones/$h"; then
+      return 1
+    fi
+
+    if _contains "$response" "\"name\": \"$h\""; then
+      _domain_id=$(echo "$response" | _normalizeJson | tr -d "{}" | tr "," "\n" | grep "\"id\": *\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
+      _debug _domain_id "$_domain_id"
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_aurora_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  key_trimmed=$(echo "$AURORA_Key" | tr -d '"')
+  secret_trimmed=$(echo "$AURORA_Secret" | tr -d '"')
+
+  timestamp=$(date -u +"%Y%m%dT%H%M%SZ")
+  signature=$(printf "%s/%s%s" "$m" "$ep" "$timestamp" | _hmac sha256 "$(printf "%s" "$secret_trimmed" | _hex_dump | tr -d " ")" | _base64)
+  authorization=$(printf "AuroraDNSv1 %s" "$(printf "%s:%s" "$key_trimmed" "$signature" | _base64)")
+
+  export _H1="Content-Type: application/json; charset=UTF-8"
+  export _H2="X-AuroraDNS-Date: $timestamp"
+  export _H3="Authorization: $authorization"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$AURORA_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$AURORA_Api/$ep")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
diff --git a/dnsapi/dns_azion.sh b/dnsapi/dns_azion.sh
new file mode 100644
index 00000000..f215686d
--- /dev/null
+++ b/dnsapi/dns_azion.sh
@@ -0,0 +1,204 @@
+#!/usr/bin/env sh
+
+#
+#AZION_Email=""
+#AZION_Password=""
+#
+
+AZION_Api="https://api.azionapi.net"
+
+########  Public functions ########
+
+# Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+# Used to add txt record
+dns_azion_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _debug "Detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "Domain not found"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+  _debug _domain_id "$_domain_id"
+
+  _info "Add or update record"
+  _get_record "$_domain_id" "$_sub_domain"
+  if [ "$record_id" ]; then
+    _payload="{\"record_type\": \"TXT\", \"entry\": \"$_sub_domain\", \"answers_list\": [$answers_list, \"$txtvalue\"], \"ttl\": 20}"
+    if _azion_rest PUT "intelligent_dns/$_domain_id/records/$record_id" "$_payload"; then
+      if _contains "$response" "$txtvalue"; then
+        _info "Record updated."
+        return 0
+      fi
+    fi
+  else
+    _payload="{\"record_type\": \"TXT\", \"entry\": \"$_sub_domain\", \"answers_list\": [\"$txtvalue\"], \"ttl\": 20}"
+    if _azion_rest POST "intelligent_dns/$_domain_id/records" "$_payload"; then
+      if _contains "$response" "$txtvalue"; then
+        _info "Record added."
+        return 0
+      fi
+    fi
+  fi
+  _err "Failed to add or update record."
+  return 1
+}
+
+# Usage: fulldomain txtvalue
+# Used to remove the txt record after validation
+dns_azion_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _debug "Detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "Domain not found"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+  _debug _domain_id "$_domain_id"
+
+  _info "Removing record"
+  _get_record "$_domain_id" "$_sub_domain"
+  if [ "$record_id" ]; then
+    if _azion_rest DELETE "intelligent_dns/$_domain_id/records/$record_id"; then
+      _info "Record removed."
+      return 0
+    else
+      _err "Failed to remove record."
+      return 1
+    fi
+  else
+    _info "Record not found or already removed."
+    return 0
+  fi
+}
+
+####################  Private functions below ##################################
+# Usage: _acme-challenge.www.domain.com
+# returns
+#  _sub_domain=_acme-challenge.www
+#  _domain=domain.com
+#  _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  if ! _azion_rest GET "intelligent_dns"; then
+    return 1
+  fi
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      # not valid
+      return 1
+    fi
+
+    if _contains "$response" "\"domain\":\"$h\""; then
+      _domain_id=$(echo "$response" | tr '{' "\n" | grep "\"domain\":\"$h\"" | _egrep_o "\"id\":[0-9]*" | _head_n 1 | cut -d : -f 2 | tr -d \")
+      _debug _domain_id "$_domain_id"
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_get_record() {
+  _domain_id=$1
+  _record=$2
+
+  if ! _azion_rest GET "intelligent_dns/$_domain_id/records"; then
+    return 1
+  fi
+
+  if _contains "$response" "\"entry\":\"$_record\""; then
+    _json_record=$(echo "$response" | tr '{' "\n" | grep "\"entry\":\"$_record\"")
+    if [ "$_json_record" ]; then
+      record_id=$(echo "$_json_record" | _egrep_o "\"record_id\":[0-9]*" | _head_n 1 | cut -d : -f 2 | tr -d \")
+      answers_list=$(echo "$_json_record" | _egrep_o "\"answers_list\":\[.*\]" | _head_n 1 | cut -d : -f 2 | tr -d \[\])
+      return 0
+    fi
+    return 1
+  fi
+  return 1
+}
+
+_get_token() {
+  AZION_Email="${AZION_Email:-$(_readaccountconf_mutable AZION_Email)}"
+  AZION_Password="${AZION_Password:-$(_readaccountconf_mutable AZION_Password)}"
+
+  if ! _contains "$AZION_Email" "@"; then
+    _err "It seems that the AZION_Email is not a valid email address. Revalidate your environments."
+    return 1
+  fi
+
+  if [ -z "$AZION_Email" ] || [ -z "$AZION_Password" ]; then
+    _err "You didn't specified a AZION_Email/AZION_Password to generate Azion token."
+    return 1
+  fi
+
+  _saveaccountconf_mutable AZION_Email "$AZION_Email"
+  _saveaccountconf_mutable AZION_Password "$AZION_Password"
+
+  _basic_auth=$(printf "%s:%s" "$AZION_Email" "$AZION_Password" | _base64)
+  _debug _basic_auth "$_basic_auth"
+
+  export _H1="Accept: application/json; version=3"
+  export _H2="Content-Type: application/json"
+  export _H3="Authorization: Basic $_basic_auth"
+
+  response="$(_post "" "$AZION_Api/tokens" "" "POST")"
+  if _contains "$response" "\"token\":\"" >/dev/null; then
+    _azion_token=$(echo "$response" | _egrep_o "\"token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d \")
+    export AZION_Token="$_azion_token"
+  else
+    _err "Failed to generate Azion token"
+    return 1
+  fi
+}
+
+_azion_rest() {
+  _method=$1
+  _uri="$2"
+  _data="$3"
+
+  if [ -z "$AZION_Token" ]; then
+    _get_token
+  fi
+  _debug2 token "$AZION_Token"
+
+  export _H1="Accept: application/json; version=3"
+  export _H2="Content-Type: application/json"
+  export _H3="Authorization: token $AZION_Token"
+
+  if [ "$_method" != "GET" ]; then
+    _debug _data "$_data"
+    response="$(_post "$_data" "$AZION_Api/$_uri" "" "$_method")"
+  else
+    response="$(_get "$AZION_Api/$_uri")"
+  fi
+
+  _debug2 response "$response"
+
+  if [ "$?" != "0" ]; then
+    _err "error $_method $_uri $_data"
+    return 1
+  fi
+  return 0
+}
diff --git a/dnsapi/dns_constellix.sh b/dnsapi/dns_constellix.sh
index 42df710d..69d216f0 100644
--- a/dnsapi/dns_constellix.sh
+++ b/dnsapi/dns_constellix.sh
@@ -30,16 +30,41 @@ dns_constellix_add() {
     return 1
   fi
 
-  _info "Adding TXT record"
-  if _constellix_rest POST "domains/${_domain_id}/records" "[{\"type\":\"txt\",\"add\":true,\"set\":{\"name\":\"${_sub_domain}\",\"ttl\":120,\"roundRobin\":[{\"value\":\"${txtvalue}\"}]}}]"; then
-    if printf -- "%s" "$response" | grep "{\"success\":\"1 record(s) added, 0 record(s) updated, 0 record(s) deleted\"}" >/dev/null; then
-      _info "Added"
-      return 0
+  # The TXT record might already exist when working with wildcard certificates. In that case, update the record by adding the new value.
+  _debug "Search TXT record"
+  if _constellix_rest GET "domains/${_domain_id}/records/TXT/search?exact=${_sub_domain}"; then
+    if printf -- "%s" "$response" | grep "{\"errors\":\[\"Requested record was not found\"\]}" >/dev/null; then
+      _info "Adding TXT record"
+      if _constellix_rest POST "domains/${_domain_id}/records" "[{\"type\":\"txt\",\"add\":true,\"set\":{\"name\":\"${_sub_domain}\",\"ttl\":60,\"roundRobin\":[{\"value\":\"${txtvalue}\"}]}}]"; then
+        if printf -- "%s" "$response" | grep "{\"success\":\"1 record(s) added, 0 record(s) updated, 0 record(s) deleted\"}" >/dev/null; then
+          _info "Added"
+          return 0
+        else
+          _err "Error adding TXT record"
+        fi
+      fi
     else
-      _err "Error adding TXT record"
-      return 1
+      _record_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":[0-9]*" | cut -d ':' -f 2)
+      if _constellix_rest GET "domains/${_domain_id}/records/TXT/${_record_id}"; then
+        _new_rr_values=$(printf "%s\n" "$response" | _egrep_o '"roundRobin":\[[^]]*\]' | sed "s/\]$/,{\"value\":\"${txtvalue}\"}]/")
+        _debug _new_rr_values "$_new_rr_values"
+        _info "Updating TXT record"
+        if _constellix_rest PUT "domains/${_domain_id}/records/TXT/${_record_id}" "{\"name\":\"${_sub_domain}\",\"ttl\":60,${_new_rr_values}}"; then
+          if printf -- "%s" "$response" | grep "{\"success\":\"Record.*updated successfully\"}" >/dev/null; then
+            _info "Updated"
+            return 0
+          elif printf -- "%s" "$response" | grep "{\"errors\":\[\"Contents are identical\"\]}" >/dev/null; then
+            _info "Already exists, no need to update"
+            return 0
+          else
+            _err "Error updating TXT record"
+          fi
+        fi
+      fi
     fi
   fi
+
+  return 1
 }
 
 # Usage: fulldomain txtvalue
@@ -61,16 +86,26 @@ dns_constellix_rm() {
     return 1
   fi
 
-  _info "Removing TXT record"
-  if _constellix_rest POST "domains/${_domain_id}/records" "[{\"type\":\"txt\",\"delete\":true,\"filter\":{\"field\":\"name\",\"op\":\"eq\",\"value\":\"${_sub_domain}\"}}]"; then
-    if printf -- "%s" "$response" | grep "{\"success\":\"0 record(s) added, 0 record(s) updated, 1 record(s) deleted\"}" >/dev/null; then
+  # The TXT record might have been removed already when working with some wildcard certificates.
+  _debug "Search TXT record"
+  if _constellix_rest GET "domains/${_domain_id}/records/TXT/search?exact=${_sub_domain}"; then
+    if printf -- "%s" "$response" | grep "{\"errors\":\[\"Requested record was not found\"\]}" >/dev/null; then
       _info "Removed"
       return 0
     else
-      _err "Error removing TXT record"
-      return 1
+      _info "Removing TXT record"
+      if _constellix_rest POST "domains/${_domain_id}/records" "[{\"type\":\"txt\",\"delete\":true,\"filter\":{\"field\":\"name\",\"op\":\"eq\",\"value\":\"${_sub_domain}\"}}]"; then
+        if printf -- "%s" "$response" | grep "{\"success\":\"0 record(s) added, 0 record(s) updated, 1 record(s) deleted\"}" >/dev/null; then
+          _info "Removed"
+          return 0
+        else
+          _err "Error removing TXT record"
+        fi
+      fi
     fi
   fi
+
+  return 1
 }
 
 ####################  Private functions below ##################################
@@ -91,7 +126,7 @@ _get_root() {
     fi
 
     if _contains "$response" "\"name\":\"$h\""; then
-      _domain_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":[0-9]+" | cut -d ':' -f 2)
+      _domain_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":[0-9]*" | cut -d ':' -f 2)
       if [ "$_domain_id" ]; then
         _sub_domain=$(printf "%s" "$domain" | cut -d '.' -f 1-$p)
         _domain="$h"
diff --git a/dnsapi/dns_desec.sh b/dnsapi/dns_desec.sh
index f64660a8..495a6780 100644
--- a/dnsapi/dns_desec.sh
+++ b/dnsapi/dns_desec.sh
@@ -20,21 +20,17 @@ dns_desec_add() {
   _debug txtvalue "$txtvalue"
 
   DEDYN_TOKEN="${DEDYN_TOKEN:-$(_readaccountconf_mutable DEDYN_TOKEN)}"
-  DEDYN_NAME="${DEDYN_NAME:-$(_readaccountconf_mutable DEDYN_NAME)}"
 
-  if [ -z "$DEDYN_TOKEN" ] || [ -z "$DEDYN_NAME" ]; then
+  if [ -z "$DEDYN_TOKEN" ]; then
     DEDYN_TOKEN=""
-    DEDYN_NAME=""
-    _err "You did not specify DEDYN_TOKEN and DEDYN_NAME yet."
+    _err "You did not specify DEDYN_TOKEN yet."
     _err "Please create your key and try again."
     _err "e.g."
     _err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e"
-    _err "export DEDYN_NAME=foobar.dedyn.io"
     return 1
   fi
-  #save the api token and name to the account conf file.
+  #save the api token to the account conf file.
   _saveaccountconf_mutable DEDYN_TOKEN "$DEDYN_TOKEN"
-  _saveaccountconf_mutable DEDYN_NAME "$DEDYN_NAME"
 
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain" "$REST_API/"; then
@@ -47,7 +43,7 @@ dns_desec_add() {
   # Get existing TXT record
   _debug "Getting txt records"
   txtvalues="\"\\\"$txtvalue\\\"\""
-  _desec_rest GET "$REST_API/$DEDYN_NAME/rrsets/$_sub_domain/TXT/"
+  _desec_rest GET "$REST_API/$_domain/rrsets/$_sub_domain/TXT/"
 
   if [ "$_code" = "200" ]; then
     oldtxtvalues="$(echo "$response" | _egrep_o "\"records\":\\[\"\\S*\"\\]" | cut -d : -f 2 | tr -d "[]\\\\\"" | sed "s/,/ /g")"
@@ -63,7 +59,7 @@ dns_desec_add() {
   _info "Adding record"
   body="[{\"subname\":\"$_sub_domain\", \"type\":\"TXT\", \"records\":[$txtvalues], \"ttl\":3600}]"
 
-  if _desec_rest PUT "$REST_API/$DEDYN_NAME/rrsets/" "$body"; then
+  if _desec_rest PUT "$REST_API/$_domain/rrsets/" "$body"; then
     if _contains "$response" "$txtvalue"; then
       _info "Added, OK"
       return 0
@@ -87,16 +83,13 @@ dns_desec_rm() {
   _debug txtvalue "$txtvalue"
 
   DEDYN_TOKEN="${DEDYN_TOKEN:-$(_readaccountconf_mutable DEDYN_TOKEN)}"
-  DEDYN_NAME="${DEDYN_NAME:-$(_readaccountconf_mutable DEDYN_NAME)}"
 
-  if [ -z "$DEDYN_TOKEN" ] || [ -z "$DEDYN_NAME" ]; then
+  if [ -z "$DEDYN_TOKEN" ]; then
     DEDYN_TOKEN=""
-    DEDYN_NAME=""
-    _err "You did not specify DEDYN_TOKEN and DEDYN_NAME yet."
+    _err "You did not specify DEDYN_TOKEN yet."
     _err "Please create your key and try again."
     _err "e.g."
     _err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e"
-    _err "export DEDYN_NAME=foobar.dedyn.io"
     return 1
   fi
 
@@ -112,7 +105,7 @@ dns_desec_rm() {
   # Get existing TXT record
   _debug "Getting txt records"
   txtvalues=""
-  _desec_rest GET "$REST_API/$DEDYN_NAME/rrsets/$_sub_domain/TXT/"
+  _desec_rest GET "$REST_API/$_domain/rrsets/$_sub_domain/TXT/"
 
   if [ "$_code" = "200" ]; then
     oldtxtvalues="$(echo "$response" | _egrep_o "\"records\":\\[\"\\S*\"\\]" | cut -d : -f 2 | tr -d "[]\\\\\"" | sed "s/,/ /g")"
@@ -131,7 +124,7 @@ dns_desec_rm() {
 
   _info "Deleting record"
   body="[{\"subname\":\"$_sub_domain\", \"type\":\"TXT\", \"records\":[$txtvalues], \"ttl\":3600}]"
-  _desec_rest PUT "$REST_API/$DEDYN_NAME/rrsets/" "$body"
+  _desec_rest PUT "$REST_API/$_domain/rrsets/" "$body"
   if [ "$_code" = "200" ]; then
     _info "Deleted, OK"
     return 0
diff --git a/dnsapi/dns_dp.sh b/dnsapi/dns_dp.sh
index 033fa5aa..9b8b7a8b 100755
--- a/dnsapi/dns_dp.sh
+++ b/dnsapi/dns_dp.sh
@@ -89,7 +89,7 @@ add_record() {
 
   _info "Adding record"
 
-  if ! _rest POST "Record.Create" "login_token=$DP_Id,$DP_Key&format=json&lang=en&domain_id=$_domain_id&sub_domain=$_sub_domain&record_type=TXT&value=$txtvalue&record_line=默认"; then
+  if ! _rest POST "Record.Create" "login_token=$DP_Id,$DP_Key&format=json&lang=en&domain_id=$_domain_id&sub_domain=$_sub_domain&record_type=TXT&value=$txtvalue&record_line=%E9%BB%98%E8%AE%A4"; then
     return 1
   fi
 
diff --git a/dnsapi/dns_ionos.sh b/dnsapi/dns_ionos.sh
index e6bd5000..c2c431bb 100755
--- a/dnsapi/dns_ionos.sh
+++ b/dnsapi/dns_ionos.sh
@@ -24,20 +24,9 @@ dns_ionos_add() {
     return 1
   fi
 
-  _new_record="{\"name\":\"$_sub_domain.$_domain\",\"type\":\"TXT\",\"content\":\"$txtvalue\",\"ttl\":$IONOS_TXT_TTL,\"prio\":$IONOS_TXT_PRIO,\"disabled\":false}"
+  _body="[{\"name\":\"$_sub_domain.$_domain\",\"type\":\"TXT\",\"content\":\"$txtvalue\",\"ttl\":$IONOS_TXT_TTL,\"prio\":$IONOS_TXT_PRIO,\"disabled\":false}]"
 
-  # As no POST route is supported by the API, check for existing records and include them in the PATCH request in order not delete them.
-  # This is required to support ACME v2 wildcard certificate creation, where two TXT records for the same domain name are created.
-
-  _ionos_get_existing_records "$fulldomain" "$_zone_id"
-
-  if [ "$_existing_records" ]; then
-    _body="[$_new_record,$_existing_records]"
-  else
-    _body="[$_new_record]"
-  fi
-
-  if _ionos_rest PATCH "$IONOS_ROUTE_ZONES/$_zone_id" "$_body" && [ -z "$response" ]; then
+  if _ionos_rest POST "$IONOS_ROUTE_ZONES/$_zone_id/records" "$_body" && [ -z "$response" ]; then
     _info "TXT record has been created successfully."
     return 0
   fi
@@ -125,17 +114,6 @@ _get_root() {
   return 1
 }
 
-_ionos_get_existing_records() {
-  fulldomain=$1
-  zone_id=$2
-
-  if _ionos_rest GET "$IONOS_ROUTE_ZONES/$zone_id?recordName=$fulldomain&recordType=TXT"; then
-    response="$(echo "$response" | tr -d "\n")"
-
-    _existing_records="$(printf "%s\n" "$response" | _egrep_o "\"records\":\[.*\]" | _head_n 1 | cut -d '[' -f 2 | sed 's/]//')"
-  fi
-}
-
 _ionos_get_record() {
   fulldomain=$1
   zone_id=$2
@@ -168,17 +146,18 @@ _ionos_rest() {
     export _H2="Accept: application/json"
     export _H3="Content-Type: application/json"
 
-    response="$(_post "$data" "$IONOS_API$route" "" "$method")"
+    response="$(_post "$data" "$IONOS_API$route" "" "$method" "application/json")"
   else
     export _H2="Accept: */*"
-
+    export _H3=
     response="$(_get "$IONOS_API$route")"
   fi
 
   if [ "$?" != "0" ]; then
-    _err "Error $route"
+    _err "Error $route: $response"
     return 1
   fi
+  _debug2 "response" "$response"
 
   return 0
 }
diff --git a/dnsapi/dns_namecheap.sh b/dnsapi/dns_namecheap.sh
index 7ce39fa9..d15d6b0e 100755
--- a/dnsapi/dns_namecheap.sh
+++ b/dnsapi/dns_namecheap.sh
@@ -208,7 +208,7 @@ _namecheap_parse_host() {
   _hostid=$(echo "$_host" | _egrep_o ' HostId="[^"]*' | cut -d '"' -f 2)
   _hostname=$(echo "$_host" | _egrep_o ' Name="[^"]*' | cut -d '"' -f 2)
   _hosttype=$(echo "$_host" | _egrep_o ' Type="[^"]*' | cut -d '"' -f 2)
-  _hostaddress=$(echo "$_host" | _egrep_o ' Address="[^"]*' | cut -d '"' -f 2)
+  _hostaddress=$(echo "$_host" | _egrep_o ' Address="[^"]*' | cut -d '"' -f 2 | _xml_decode)
   _hostmxpref=$(echo "$_host" | _egrep_o ' MXPref="[^"]*' | cut -d '"' -f 2)
   _hostttl=$(echo "$_host" | _egrep_o ' TTL="[^"]*' | cut -d '"' -f 2)
 
@@ -405,3 +405,7 @@ _namecheap_set_tld_sld() {
   done
 
 }
+
+_xml_decode() {
+  sed 's/&quot;/"/g'
+}
diff --git a/dnsapi/dns_nsd.sh b/dnsapi/dns_nsd.sh
index 83cc4cac..0d29a485 100644
--- a/dnsapi/dns_nsd.sh
+++ b/dnsapi/dns_nsd.sh
@@ -51,7 +51,7 @@ dns_nsd_rm() {
   Nsd_ZoneFile="${Nsd_ZoneFile:-$(_readdomainconf Nsd_ZoneFile)}"
   Nsd_Command="${Nsd_Command:-$(_readdomainconf Nsd_Command)}"
 
-  sed -i "/$fulldomain. $ttlvalue IN TXT \"$txtvalue\"/d" "$Nsd_ZoneFile"
+  _sed_i "/$fulldomain. $ttlvalue IN TXT \"$txtvalue\"/d" "$Nsd_ZoneFile"
   _info "Removed TXT record for $fulldomain"
   _debug "Running $Nsd_Command"
   if eval "$Nsd_Command"; then
diff --git a/dnsapi/dns_oci.sh b/dnsapi/dns_oci.sh
new file mode 100644
index 00000000..eb006120
--- /dev/null
+++ b/dnsapi/dns_oci.sh
@@ -0,0 +1,324 @@
+#!/usr/bin/env sh
+#
+# Acme.sh DNS API plugin for Oracle Cloud Infrastructure
+# Copyright (c) 2021, Oracle and/or its affiliates
+#
+# The plugin will automatically use the default profile from an OCI SDK and CLI
+# configuration file, if it exists.
+#
+# Alternatively, set the following environment variables:
+# - OCI_CLI_TENANCY : OCID of tenancy that contains the target DNS zone
+# - OCI_CLI_USER    : OCID of user with permission to add/remove records from zones
+# - OCI_CLI_REGION  : Should point to the tenancy home region
+#
+# One of the following two variables is required:
+# - OCI_CLI_KEY_FILE: Path to private API signing key file in PEM format; or
+# - OCI_CLI_KEY     : The private API signing key in PEM format
+#
+# NOTE: using an encrypted private key that needs a passphrase is not supported.
+#
+
+dns_oci_add() {
+  _fqdn="$1"
+  _rdata="$2"
+
+  if _get_oci_zone; then
+
+    _add_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"ttl\": 30,\"operation\":\"ADD\"}]}"
+    response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_add_record_body")
+    if [ "$response" ]; then
+      _info "Success: added TXT record for ${_sub_domain}.${_domain}."
+    else
+      _err "Error: failed to add TXT record for ${_sub_domain}.${_domain}."
+      _err "Check that the user has permission to add records to this zone."
+      return 1
+    fi
+
+  else
+    return 1
+  fi
+
+}
+
+dns_oci_rm() {
+  _fqdn="$1"
+  _rdata="$2"
+
+  if _get_oci_zone; then
+
+    _remove_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"operation\":\"REMOVE\"}]}"
+    response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_remove_record_body")
+    if [ "$response" ]; then
+      _info "Success: removed TXT record for ${_sub_domain}.${_domain}."
+    else
+      _err "Error: failed to remove TXT record for ${_sub_domain}.${_domain}."
+      _err "Check that the user has permission to remove records from this zone."
+      return 1
+    fi
+
+  else
+    return 1
+  fi
+
+}
+
+####################  Private functions below ##################################
+_get_oci_zone() {
+
+  if ! _oci_config; then
+    return 1
+  fi
+
+  if ! _get_zone "$_fqdn"; then
+    _err "Error: DNS Zone not found for $_fqdn in $OCI_CLI_TENANCY"
+    return 1
+  fi
+
+  return 0
+
+}
+
+_oci_config() {
+
+  _DEFAULT_OCI_CLI_CONFIG_FILE="$HOME/.oci/config"
+  OCI_CLI_CONFIG_FILE="${OCI_CLI_CONFIG_FILE:-$(_readaccountconf_mutable OCI_CLI_CONFIG_FILE)}"
+
+  if [ -z "$OCI_CLI_CONFIG_FILE" ]; then
+    OCI_CLI_CONFIG_FILE="$_DEFAULT_OCI_CLI_CONFIG_FILE"
+  fi
+
+  if [ "$_DEFAULT_OCI_CLI_CONFIG_FILE" != "$OCI_CLI_CONFIG_FILE" ]; then
+    _saveaccountconf_mutable OCI_CLI_CONFIG_FILE "$OCI_CLI_CONFIG_FILE"
+  else
+    _clearaccountconf_mutable OCI_CLI_CONFIG_FILE
+  fi
+
+  _DEFAULT_OCI_CLI_PROFILE="DEFAULT"
+  OCI_CLI_PROFILE="${OCI_CLI_PROFILE:-$(_readaccountconf_mutable OCI_CLI_PROFILE)}"
+  if [ "$_DEFAULT_OCI_CLI_PROFILE" != "$OCI_CLI_PROFILE" ]; then
+    _saveaccountconf_mutable OCI_CLI_PROFILE "$OCI_CLI_PROFILE"
+  else
+    OCI_CLI_PROFILE="$_DEFAULT_OCI_CLI_PROFILE"
+    _clearaccountconf_mutable OCI_CLI_PROFILE
+  fi
+
+  OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readaccountconf_mutable OCI_CLI_TENANCY)}"
+  if [ "$OCI_CLI_TENANCY" ]; then
+    _saveaccountconf_mutable OCI_CLI_TENANCY "$OCI_CLI_TENANCY"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_TENANCY value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readini "$OCI_CLI_CONFIG_FILE" tenancy "$OCI_CLI_PROFILE")}"
+  fi
+
+  if [ -z "$OCI_CLI_TENANCY" ]; then
+    _err "Error: unable to read OCI_CLI_TENANCY from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_USER="${OCI_CLI_USER:-$(_readaccountconf_mutable OCI_CLI_USER)}"
+  if [ "$OCI_CLI_USER" ]; then
+    _saveaccountconf_mutable OCI_CLI_USER "$OCI_CLI_USER"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_USER value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_USER="${OCI_CLI_USER:-$(_readini "$OCI_CLI_CONFIG_FILE" user "$OCI_CLI_PROFILE")}"
+  fi
+  if [ -z "$OCI_CLI_USER" ]; then
+    _err "Error: unable to read OCI_CLI_USER from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readaccountconf_mutable OCI_CLI_REGION)}"
+  if [ "$OCI_CLI_REGION" ]; then
+    _saveaccountconf_mutable OCI_CLI_REGION "$OCI_CLI_REGION"
+  elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then
+    _debug "Reading OCI_CLI_REGION value from: $OCI_CLI_CONFIG_FILE"
+    OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readini "$OCI_CLI_CONFIG_FILE" region "$OCI_CLI_PROFILE")}"
+  fi
+  if [ -z "$OCI_CLI_REGION" ]; then
+    _err "Error: unable to read OCI_CLI_REGION from config file or environment variable."
+    return 1
+  fi
+
+  OCI_CLI_KEY="${OCI_CLI_KEY:-$(_readaccountconf_mutable OCI_CLI_KEY)}"
+  if [ -z "$OCI_CLI_KEY" ]; then
+    _clearaccountconf_mutable OCI_CLI_KEY
+    OCI_CLI_KEY_FILE="${OCI_CLI_KEY_FILE:-$(_readini "$OCI_CLI_CONFIG_FILE" key_file "$OCI_CLI_PROFILE")}"
+    if [ "$OCI_CLI_KEY_FILE" ] && [ -f "$OCI_CLI_KEY_FILE" ]; then
+      _debug "Reading OCI_CLI_KEY value from: $OCI_CLI_KEY_FILE"
+      OCI_CLI_KEY=$(_base64 <"$OCI_CLI_KEY_FILE")
+      _saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY"
+    fi
+  else
+    _saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY"
+  fi
+
+  if [ -z "$OCI_CLI_KEY_FILE" ] && [ -z "$OCI_CLI_KEY" ]; then
+    _err "Error: unable to find key file path in OCI config file or OCI_CLI_KEY_FILE."
+    _err "Error: unable to load private API signing key from OCI_CLI_KEY."
+    return 1
+  fi
+
+  if [ "$(printf "%s\n" "$OCI_CLI_KEY" | wc -l)" -eq 1 ]; then
+    OCI_CLI_KEY=$(printf "%s" "$OCI_CLI_KEY" | _dbase64 multiline)
+  fi
+
+  return 0
+
+}
+
+# _get_zone(): retrieves the Zone name and OCID
+#
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_ociid=ocid1.dns-zone.oc1..
+_get_zone() {
+  domain=$1
+  i=1
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      # not valid
+      return 1
+    fi
+
+    _domain_id=$(_signed_request "GET" "/20180115/zones/$h" "" "id")
+    if [ "$_domain_id" ]; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain=$h
+
+      _debug _domain_id "$_domain_id"
+      _debug _sub_domain "$_sub_domain"
+      _debug _domain "$_domain"
+      return 0
+    fi
+
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+
+}
+
+#Usage: privatekey
+#Output MD5 fingerprint
+_fingerprint() {
+
+  pkey="$1"
+  if [ -z "$pkey" ]; then
+    _usage "Usage: _fingerprint privkey"
+    return 1
+  fi
+
+  printf "%s" "$pkey" | ${ACME_OPENSSL_BIN:-openssl} rsa -pubout -outform DER 2>/dev/null | ${ACME_OPENSSL_BIN:-openssl} md5 -c | cut -d = -f 2 | tr -d ' '
+
+}
+
+_signed_request() {
+
+  _sig_method="$1"
+  _sig_target="$2"
+  _sig_body="$3"
+  _return_field="$4"
+
+  _key_fingerprint=$(_fingerprint "$OCI_CLI_KEY")
+  _sig_host="dns.$OCI_CLI_REGION.oraclecloud.com"
+  _sig_keyId="$OCI_CLI_TENANCY/$OCI_CLI_USER/$_key_fingerprint"
+  _sig_alg="rsa-sha256"
+  _sig_version="1"
+  _sig_now="$(LC_ALL=C \date -u "+%a, %d %h %Y %H:%M:%S GMT")"
+
+  _request_method=$(printf %s "$_sig_method" | _lower_case)
+  _curl_method=$(printf %s "$_sig_method" | _upper_case)
+
+  _request_target="(request-target): $_request_method $_sig_target"
+  _date_header="date: $_sig_now"
+  _host_header="host: $_sig_host"
+
+  _string_to_sign="$_request_target\n$_date_header\n$_host_header"
+  _sig_headers="(request-target) date host"
+
+  if [ "$_sig_body" ]; then
+    _secure_debug3 _sig_body "$_sig_body"
+    _sig_body_sha256="x-content-sha256: $(printf %s "$_sig_body" | _digest sha256)"
+    _sig_body_type="content-type: application/json"
+    _sig_body_length="content-length: ${#_sig_body}"
+    _string_to_sign="$_string_to_sign\n$_sig_body_sha256\n$_sig_body_type\n$_sig_body_length"
+    _sig_headers="$_sig_headers x-content-sha256 content-type content-length"
+  fi
+
+  _tmp_file=$(_mktemp)
+  if [ -f "$_tmp_file" ]; then
+    printf '%s' "$OCI_CLI_KEY" >"$_tmp_file"
+    _signature=$(printf '%b' "$_string_to_sign" | _sign "$_tmp_file" sha256 | tr -d '\r\n')
+    rm -f "$_tmp_file"
+  fi
+
+  _signed_header="Authorization: Signature version=\"$_sig_version\",keyId=\"$_sig_keyId\",algorithm=\"$_sig_alg\",headers=\"$_sig_headers\",signature=\"$_signature\""
+  _secure_debug3 _signed_header "$_signed_header"
+
+  if [ "$_curl_method" = "GET" ]; then
+    export _H1="$_date_header"
+    export _H2="$_signed_header"
+    _response="$(_get "https://${_sig_host}${_sig_target}")"
+  elif [ "$_curl_method" = "PATCH" ]; then
+    export _H1="$_date_header"
+    export _H2="$_sig_body_sha256"
+    export _H3="$_sig_body_type"
+    export _H4="$_sig_body_length"
+    export _H5="$_signed_header"
+    _response="$(_post "$_sig_body" "https://${_sig_host}${_sig_target}" "" "PATCH")"
+  else
+    _err "Unable to process method: $_curl_method."
+  fi
+
+  _ret="$?"
+  if [ "$_return_field" ]; then
+    _response="$(echo "$_response" | sed 's/\\\"//g'))"
+    _return=$(echo "${_response}" | _egrep_o "\"$_return_field\"\\s*:\\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"")
+  else
+    _return="$_response"
+  fi
+
+  printf "%s" "$_return"
+  return $_ret
+
+}
+
+# file  key  [section]
+_readini() {
+  _file="$1"
+  _key="$2"
+  _section="${3:-DEFAULT}"
+
+  _start_n=$(grep -n '\['"$_section"']' "$_file" | cut -d : -f 1)
+  _debug3 _start_n "$_start_n"
+  if [ -z "$_start_n" ]; then
+    _err "Can not find section: $_section"
+    return 1
+  fi
+
+  _start_nn=$(_math "$_start_n" + 1)
+  _debug3 "_start_nn" "$_start_nn"
+
+  _left="$(sed -n "${_start_nn},99999p" "$_file")"
+  _debug3 _left "$_left"
+  _end="$(echo "$_left" | grep -n "^\[" | _head_n 1)"
+  _debug3 "_end" "$_end"
+  if [ "$_end" ]; then
+    _end_n=$(echo "$_end" | cut -d : -f 1)
+    _debug3 "_end_n" "$_end_n"
+    _seg_n=$(echo "$_left" | sed -n "1,${_end_n}p")
+  else
+    _seg_n="$_left"
+  fi
+
+  _debug3 "_seg_n" "$_seg_n"
+  _lineini="$(echo "$_seg_n" | grep "^ *$_key *= *")"
+  _inivalue="$(printf "%b" "$(eval "echo $_lineini | sed \"s/^ *${_key} *= *//g\"")")"
+  _debug2 _inivalue "$_inivalue"
+  echo "$_inivalue"
+
+}
diff --git a/dnsapi/dns_one.sh b/dnsapi/dns_one.sh
index 890cc804..1565b767 100644
--- a/dnsapi/dns_one.sh
+++ b/dnsapi/dns_one.sh
@@ -1,22 +1,9 @@
 #!/usr/bin/env sh
-# -*- mode: sh; tab-width: 2; indent-tabs-mode: s; coding: utf-8 -*-
-
 # one.com ui wrapper for acme.sh
-# Author: github: @diseq
-# Created: 2019-02-17
-# Fixed by: @der-berni
-# Modified: 2020-04-07
-#
-#     Use ONECOM_KeepCnameProxy to keep the CNAME DNS record
-#     export ONECOM_KeepCnameProxy="1"
+
 #
 #     export ONECOM_User="username"
 #     export ONECOM_Password="password"
-#
-# Usage:
-#     acme.sh --issue --dns dns_one -d example.com
-#
-#     only single domain supported atm
 
 dns_one_add() {
   fulldomain=$1
@@ -36,27 +23,9 @@ dns_one_add() {
   subdomain="${_sub_domain}"
   maindomain=${_domain}
 
-  useProxy=0
-  if [ "${_sub_domain}" = "_acme-challenge" ]; then
-    subdomain="proxy${_sub_domain}"
-    useProxy=1
-  fi
-
   _debug subdomain "$subdomain"
   _debug maindomain "$maindomain"
 
-  if [ $useProxy -eq 1 ]; then
-    #Check if the CNAME exists
-    _dns_one_getrecord "CNAME" "$_sub_domain" "$subdomain.$maindomain"
-    if [ -z "$id" ]; then
-      _info "$(__red "Add CNAME Proxy record: '$(__green "\"$_sub_domain\" => \"$subdomain.$maindomain\"")'")"
-      _dns_one_addrecord "CNAME" "$_sub_domain" "$subdomain.$maindomain"
-
-      _info "Not valid yet, let's wait 1 hour to take effect."
-      _sleep 3600
-    fi
-  fi
-
   #Check if the TXT exists
   _dns_one_getrecord "TXT" "$subdomain" "$txtvalue"
   if [ -n "$id" ]; then
@@ -92,26 +61,8 @@ dns_one_rm() {
   subdomain="${_sub_domain}"
   maindomain=${_domain}
 
-  useProxy=0
-  if [ "${_sub_domain}" = "_acme-challenge" ]; then
-    subdomain="proxy${_sub_domain}"
-    useProxy=1
-  fi
-
   _debug subdomain "$subdomain"
   _debug maindomain "$maindomain"
-  if [ $useProxy -eq 1 ]; then
-    if [ "$ONECOM_KeepCnameProxy" = "1" ]; then
-      _info "$(__red "Keeping CNAME Proxy record: '$(__green "\"$_sub_domain\" => \"$subdomain.$maindomain\"")'")"
-    else
-      #Check if the CNAME exists
-      _dns_one_getrecord "CNAME" "$_sub_domain" "$subdomain.$maindomain"
-      if [ -n "$id" ]; then
-        _info "$(__red "Removing CNAME Proxy record: '$(__green "\"$_sub_domain\" => \"$subdomain.$maindomain\"")'")"
-        _dns_one_delrecord "$id"
-      fi
-    fi
-  fi
 
   #Check if the TXT exists
   _dns_one_getrecord "TXT" "$subdomain" "$txtvalue"
@@ -136,7 +87,7 @@ dns_one_rm() {
 # _domain=domain.com
 _get_root() {
   domain="$1"
-  i=2
+  i=1
   p=1
   while true; do
     h=$(printf "%s" "$domain" | cut -d . -f $i-100)
@@ -163,8 +114,6 @@ _get_root() {
 _dns_one_login() {
 
   # get credentials
-  ONECOM_KeepCnameProxy="${ONECOM_KeepCnameProxy:-$(_readaccountconf_mutable ONECOM_KeepCnameProxy)}"
-  ONECOM_KeepCnameProxy="${ONECOM_KeepCnameProxy:-0}"
   ONECOM_User="${ONECOM_User:-$(_readaccountconf_mutable ONECOM_User)}"
   ONECOM_Password="${ONECOM_Password:-$(_readaccountconf_mutable ONECOM_Password)}"
   if [ -z "$ONECOM_User" ] || [ -z "$ONECOM_Password" ]; then
@@ -176,7 +125,6 @@ _dns_one_login() {
   fi
 
   #save the api key and email to the account conf file.
-  _saveaccountconf_mutable ONECOM_KeepCnameProxy "$ONECOM_KeepCnameProxy"
   _saveaccountconf_mutable ONECOM_User "$ONECOM_User"
   _saveaccountconf_mutable ONECOM_Password "$ONECOM_Password"
 
diff --git a/dnsapi/dns_pdns.sh b/dnsapi/dns_pdns.sh
index 28b35492..6aa2e953 100755
--- a/dnsapi/dns_pdns.sh
+++ b/dnsapi/dns_pdns.sh
@@ -103,7 +103,7 @@ set_record() {
     _build_record_string "$oldchallenge"
   done
 
-  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}"; then
+  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}" "application/json"; then
     _err "Set txt record error."
     return 1
   fi
@@ -126,7 +126,7 @@ rm_record() {
 
   if _contains "$_existing_challenges" "$txtvalue"; then
     #Delete all challenges (PowerDNS API does not allow to delete content)
-    if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"DELETE\", \"name\": \"$full.\", \"type\": \"TXT\"}]}"; then
+    if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"DELETE\", \"name\": \"$full.\", \"type\": \"TXT\"}]}" "application/json"; then
       _err "Delete txt record error."
       return 1
     fi
@@ -140,7 +140,7 @@ rm_record() {
         fi
       done
       #Recreate the existing challenges
-      if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}"; then
+      if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}" "application/json"; then
         _err "Set txt record error."
         return 1
       fi
@@ -203,12 +203,13 @@ _pdns_rest() {
   method=$1
   ep=$2
   data=$3
+  ct=$4
 
   export _H1="X-API-Key: $PDNS_Token"
 
   if [ ! "$method" = "GET" ]; then
     _debug data "$data"
-    response="$(_post "$data" "$PDNS_Url$ep" "" "$method")"
+    response="$(_post "$data" "$PDNS_Url$ep" "" "$method" "$ct")"
   else
     response="$(_get "$PDNS_Url$ep")"
   fi
diff --git a/dnsapi/dns_porkbun.sh b/dnsapi/dns_porkbun.sh
new file mode 100644
index 00000000..ad4455b6
--- /dev/null
+++ b/dnsapi/dns_porkbun.sh
@@ -0,0 +1,157 @@
+#!/usr/bin/env sh
+
+#
+#PORKBUN_API_KEY="pk1_0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
+#PORKBUN_SECRET_API_KEY="sk1_0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
+
+PORKBUN_Api="https://porkbun.com/api/json/v3"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_porkbun_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  PORKBUN_API_KEY="${PORKBUN_API_KEY:-$(_readaccountconf_mutable PORKBUN_API_KEY)}"
+  PORKBUN_SECRET_API_KEY="${PORKBUN_SECRET_API_KEY:-$(_readaccountconf_mutable PORKBUN_SECRET_API_KEY)}"
+
+  if [ -z "$PORKBUN_API_KEY" ] || [ -z "$PORKBUN_SECRET_API_KEY" ]; then
+    PORKBUN_API_KEY=''
+    PORKBUN_SECRET_API_KEY=''
+    _err "You didn't specify a Porkbun api key and secret api key yet."
+    _err "You can get yours from here https://porkbun.com/account/api."
+    return 1
+  fi
+
+  #save the credentials to the account conf file.
+  _saveaccountconf_mutable PORKBUN_API_KEY "$PORKBUN_API_KEY"
+  _saveaccountconf_mutable PORKBUN_SECRET_API_KEY "$PORKBUN_SECRET_API_KEY"
+
+  _debug 'First detect the root zone'
+  if ! _get_root "$fulldomain"; then
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  # For wildcard cert, the main root domain and the wildcard domain have the same txt subdomain name, so
+  # we can not use updating anymore.
+  #  count=$(printf "%s\n" "$response" | _egrep_o "\"count\":[^,]*" | cut -d : -f 2)
+  #  _debug count "$count"
+  #  if [ "$count" = "0" ]; then
+  _info "Adding record"
+  if _porkbun_rest POST "dns/create/$_domain" "{\"name\":\"$_sub_domain\",\"type\":\"TXT\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
+    if _contains "$response" '\"status\":"SUCCESS"'; then
+      _info "Added, OK"
+      return 0
+    elif _contains "$response" "The record already exists"; then
+      _info "Already exists, OK"
+      return 0
+    else
+      _err "Add txt record error. ($response)"
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+#fulldomain txtvalue
+dns_porkbun_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  PORKBUN_API_KEY="${PORKBUN_API_KEY:-$(_readaccountconf_mutable PORKBUN_API_KEY)}"
+  PORKBUN_SECRET_API_KEY="${PORKBUN_SECRET_API_KEY:-$(_readaccountconf_mutable PORKBUN_SECRET_API_KEY)}"
+
+  _debug 'First detect the root zone'
+  if ! _get_root "$fulldomain"; then
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  count=$(echo "$response" | _egrep_o "\"count\": *[^,]*" | cut -d : -f 2 | tr -d " ")
+  _debug count "$count"
+  if [ "$count" = "0" ]; then
+    _info "Don't need to remove."
+  else
+    record_id=$(echo "$response" | tr '{' '\n' | grep -- "$txtvalue" | cut -d, -f1 | cut -d: -f2 | tr -d \")
+    _debug "record_id" "$record_id"
+    if [ -z "$record_id" ]; then
+      _err "Can not get record id to remove."
+      return 1
+    fi
+    if ! _porkbun_rest POST "dns/delete/$_domain/$record_id"; then
+      _err "Delete record error."
+      return 1
+    fi
+    echo "$response" | tr -d " " | grep '\"status\":"SUCCESS"' >/dev/null
+  fi
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain=$1
+  i=1
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      return 1
+    fi
+
+    if _porkbun_rest POST "dns/retrieve/$h"; then
+      if _contains "$response" "\"status\":\"SUCCESS\""; then
+        _domain=$h
+        _sub_domain="$(echo "$fulldomain" | sed "s/\\.$_domain\$//")"
+        return 0
+      else
+        _debug "Go to next level of $_domain"
+      fi
+    else
+      _debug "Go to next level of $_domain"
+    fi
+    i=$(_math "$i" + 1)
+  done
+
+  return 1
+}
+
+_porkbun_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  api_key_trimmed=$(echo "$PORKBUN_API_KEY" | tr -d '"')
+  secret_api_key_trimmed=$(echo "$PORKBUN_SECRET_API_KEY" | tr -d '"')
+
+  test -z "$data" && data="{" || data="$(echo $data | cut -d'}' -f1),"
+  data="$data\"apikey\":\"$api_key_trimmed\",\"secretapikey\":\"$secret_api_key_trimmed\"}"
+
+  export _H1="Content-Type: application/json"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$PORKBUN_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$PORKBUN_Api/$ep")"
+  fi
+
+  _sleep 3 # prevent rate limit
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
diff --git a/dnsapi/dns_servercow.sh b/dnsapi/dns_servercow.sh
index e73d85b0..f70a2294 100755
--- a/dnsapi/dns_servercow.sh
+++ b/dnsapi/dns_servercow.sh
@@ -49,16 +49,42 @@ dns_servercow_add() {
   _debug _sub_domain "$_sub_domain"
   _debug _domain "$_domain"
 
-  if _servercow_api POST "$_domain" "{\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"ttl\":20}"; then
-    if printf -- "%s" "$response" | grep "ok" >/dev/null; then
-      _info "Added, OK"
-      return 0
-    else
-      _err "add txt record error."
-      return 1
+  # check whether a txt record already exists for the subdomain
+  if printf -- "%s" "$response" | grep "{\"name\":\"$_sub_domain\",\"ttl\":20,\"type\":\"TXT\"" >/dev/null; then
+    _info "A txt record with the same name already exists."
+    # trim the string on the left
+    txtvalue_old=${response#*{\"name\":\"$_sub_domain\",\"ttl\":20,\"type\":\"TXT\",\"content\":\"}
+    # trim the string on the right
+    txtvalue_old=${txtvalue_old%%\"*}
+
+    _debug txtvalue_old "$txtvalue_old"
+
+    _info "Add the new txtvalue to the existing txt record."
+    if _servercow_api POST "$_domain" "{\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":[\"$txtvalue\",\"$txtvalue_old\"],\"ttl\":20}"; then
+      if printf -- "%s" "$response" | grep "ok" >/dev/null; then
+        _info "Added additional txtvalue, OK"
+        return 0
+      else
+        _err "add txt record error."
+        return 1
+      fi
     fi
+    _err "add txt record error."
+    return 1
+  else
+    _info "There is no txt record with the name yet."
+    if _servercow_api POST "$_domain" "{\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"ttl\":20}"; then
+      if printf -- "%s" "$response" | grep "ok" >/dev/null; then
+        _info "Added, OK"
+        return 0
+      else
+        _err "add txt record error."
+        return 1
+      fi
+    fi
+    _err "add txt record error."
+    return 1
   fi
-  _err "add txt record error."
 
   return 1
 }
diff --git a/dnsapi/dns_simply.sh b/dnsapi/dns_simply.sh
index d053dcf6..e0e05017 100644
--- a/dnsapi/dns_simply.sh
+++ b/dnsapi/dns_simply.sh
@@ -6,9 +6,11 @@
 #SIMPLY_ApiKey="apikey"
 #
 #SIMPLY_Api="https://api.simply.com/1/[ACCOUNTNAME]/[APIKEY]"
-
 SIMPLY_Api_Default="https://api.simply.com/1"
 
+#This is used for determining success of REST call
+SIMPLY_SUCCESS_CODE='"status": 200'
+
 ########  Public functions #####################
 #Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
 dns_simply_add() {
@@ -171,7 +173,7 @@ _get_root() {
       return 1
     fi
 
-    if _contains "$response" '"code":"NOT_FOUND"'; then
+    if ! _contains "$response" "$SIMPLY_SUCCESS_CODE"; then
       _debug "$h not found"
     else
       _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
@@ -196,6 +198,12 @@ _simply_add_record() {
     return 1
   fi
 
+  if ! _contains "$response" "$SIMPLY_SUCCESS_CODE"; then
+    _err "Call to API not sucessfull, see below message for more details"
+    _err "$response"
+    return 1
+  fi
+
   return 0
 }
 
@@ -211,6 +219,12 @@ _simply_delete_record() {
     return 1
   fi
 
+  if ! _contains "$response" "$SIMPLY_SUCCESS_CODE"; then
+    _err "Call to API not sucessfull, see below message for more details"
+    _err "$response"
+    return 1
+  fi
+
   return 0
 }
 
diff --git a/dnsapi/dns_vultr.sh b/dnsapi/dns_vultr.sh
index c7b52e84..84857966 100644
--- a/dnsapi/dns_vultr.sh
+++ b/dnsapi/dns_vultr.sh
@@ -33,7 +33,7 @@ dns_vultr_add() {
   _debug 'Getting txt records'
   _vultr_rest GET "dns/records?domain=$_domain"
 
-  if printf "%s\n" "$response" | grep "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
+  if printf "%s\n" "$response" | grep -- "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
     _err 'Error'
     return 1
   fi
@@ -73,12 +73,12 @@ dns_vultr_rm() {
   _debug 'Getting txt records'
   _vultr_rest GET "dns/records?domain=$_domain"
 
-  if printf "%s\n" "$response" | grep "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
+  if printf "%s\n" "$response" | grep -- "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
     _err 'Error'
     return 1
   fi
 
-  _record_id="$(echo "$response" | tr '{}' '\n' | grep '"TXT"' | grep "$txtvalue" | tr ',' '\n' | grep -i 'RECORDID' | cut -d : -f 2)"
+  _record_id="$(echo "$response" | tr '{}' '\n' | grep '"TXT"' | grep -- "$txtvalue" | tr ',' '\n' | grep -i 'RECORDID' | cut -d : -f 2)"
   _debug _record_id "$_record_id"
   if [ "$_record_id" ]; then
     _info "Successfully retrieved the record id for ACME challenge."
diff --git a/dnsapi/dns_websupport.sh b/dnsapi/dns_websupport.sh
new file mode 100644
index 00000000..e824c9c0
--- /dev/null
+++ b/dnsapi/dns_websupport.sh
@@ -0,0 +1,207 @@
+#!/usr/bin/env sh
+
+# Acme.sh DNS API wrapper for websupport.sk
+#
+# Original author: trgo.sk (https://github.com/trgosk)
+# Tweaks by: akulumbeg (https://github.com/akulumbeg)
+# Report Bugs here: https://github.com/akulumbeg/acme.sh
+
+# Requirements: API Key and Secret from https://admin.websupport.sk/en/auth/apiKey
+#
+# WS_ApiKey="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+# (called "Identifier" in the WS Admin)
+#
+# WS_ApiSecret="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+# (called "Secret key" in the WS Admin)
+
+WS_Api="https://rest.websupport.sk"
+
+########  Public functions #####################
+
+dns_websupport_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  WS_ApiKey="${WS_ApiKey:-$(_readaccountconf_mutable WS_ApiKey)}"
+  WS_ApiSecret="${WS_ApiSecret:-$(_readaccountconf_mutable WS_ApiSecret)}"
+
+  if [ "$WS_ApiKey" ] && [ "$WS_ApiSecret" ]; then
+    _saveaccountconf_mutable WS_ApiKey "$WS_ApiKey"
+    _saveaccountconf_mutable WS_ApiSecret "$WS_ApiSecret"
+  else
+    WS_ApiKey=""
+    WS_ApiSecret=""
+    _err "You did not specify the API Key and/or API Secret"
+    _err "You can get the API login credentials from https://admin.websupport.sk/en/auth/apiKey"
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  # For wildcard cert, the main root domain and the wildcard domain have the same txt subdomain name, so
+  # we can not use updating anymore.
+  #  count=$(printf "%s\n" "$response" | _egrep_o "\"count\":[^,]*" | cut -d : -f 2)
+  #  _debug count "$count"
+  #  if [ "$count" = "0" ]; then
+  _info "Adding record"
+  if _ws_rest POST "/v1/user/self/zone/$_domain/record" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
+    if _contains "$response" "$txtvalue"; then
+      _info "Added, OK"
+      return 0
+    elif _contains "$response" "The record already exists"; then
+      _info "Already exists, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+dns_websupport_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _debug2 fulldomain "$fulldomain"
+  _debug2 txtvalue "$txtvalue"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _debug "Getting txt records"
+  _ws_rest GET "/v1/user/self/zone/$_domain/record"
+
+  if [ "$(printf "%s" "$response" | tr -d " " | grep -c \"items\")" -lt "1" ]; then
+    _err "Error: $response"
+    return 1
+  fi
+
+  record_line="$(_get_from_array "$response" "$txtvalue")"
+  _debug record_line "$record_line"
+  if [ -z "$record_line" ]; then
+    _info "Don't need to remove."
+  else
+    record_id=$(echo "$record_line" | _egrep_o "\"id\": *[^,]*" | _head_n 1 | cut -d : -f 2 | tr -d \" | tr -d " ")
+    _debug "record_id" "$record_id"
+    if [ -z "$record_id" ]; then
+      _err "Can not get record id to remove."
+      return 1
+    fi
+    if ! _ws_rest DELETE "/v1/user/self/zone/$_domain/record/$record_id"; then
+      _err "Delete record error."
+      return 1
+    fi
+    if [ "$(printf "%s" "$response" | tr -d " " | grep -c \"success\")" -lt "1" ]; then
+      return 1
+    else
+      return 0
+    fi
+  fi
+
+}
+
+####################  Private Functions ##################################
+
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if ! _ws_rest GET "/v1/user/self/zone"; then
+      return 1
+    fi
+
+    if _contains "$response" "\"name\":\"$h\""; then
+      _domain_id=$(echo "$response" | _egrep_o "\[.\"id\": *[^,]*" | _head_n 1 | cut -d : -f 2 | tr -d \" | tr -d " ")
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_ws_rest() {
+  me=$1
+  pa="$2"
+  da="$3"
+
+  _debug2 api_key "$WS_ApiKey"
+  _debug2 api_secret "$WS_ApiSecret"
+
+  timestamp=$(_time)
+  datez="$(_utc_date | sed "s/ /T/" | sed "s/$/+0000/")"
+  canonical_request="${me} ${pa} ${timestamp}"
+  signature_hash=$(printf "%s" "$canonical_request" | _hmac sha1 "$(printf "%s" "$WS_ApiSecret" | _hex_dump | tr -d " ")" hex)
+  basicauth="$(printf "%s:%s" "$WS_ApiKey" "$signature_hash" | _base64)"
+
+  _debug2 method "$me"
+  _debug2 path "$pa"
+  _debug2 data "$da"
+  _debug2 timestamp "$timestamp"
+  _debug2 datez "$datez"
+  _debug2 canonical_request "$canonical_request"
+  _debug2 signature_hash "$signature_hash"
+  _debug2 basicauth "$basicauth"
+
+  export _H1="Accept: application/json"
+  export _H2="Content-Type: application/json"
+  export _H3="Authorization: Basic ${basicauth}"
+  export _H4="Date: ${datez}"
+
+  _debug2 H1 "$_H1"
+  _debug2 H2 "$_H2"
+  _debug2 H3 "$_H3"
+  _debug2 H4 "$_H4"
+
+  if [ "$me" != "GET" ]; then
+    _debug2 "${me} $WS_Api${pa}"
+    _debug data "$da"
+    response="$(_post "$da" "${WS_Api}${pa}" "" "$me")"
+  else
+    _debug2 "GET $WS_Api${pa}"
+    response="$(_get "$WS_Api${pa}")"
+  fi
+
+  _debug2 response "$response"
+  return "$?"
+}
+
+_get_from_array() {
+  va="$1"
+  fi="$2"
+  for i in $(echo "$va" | sed "s/{/ /g"); do
+    if _contains "$i" "$fi"; then
+      echo "$i"
+      break
+    fi
+  done
+}
diff --git a/notify/mail.sh b/notify/mail.sh
index d33fd0d2..2cbddb63 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -79,7 +79,7 @@ mail_send() {
 _mail_bin() {
   _MAIL_BIN=""
 
-  for b in "$MAIL_BIN" sendmail ssmtp mutt mail msmtp; do
+  for b in $MAIL_BIN sendmail ssmtp mutt mail msmtp; do
     if _exists "$b"; then
       _MAIL_BIN="$b"
       break
diff --git a/notify/telegram.sh b/notify/telegram.sh
index b1306ee1..454b4146 100644
--- a/notify/telegram.sh
+++ b/notify/telegram.sh
@@ -27,15 +27,18 @@ telegram_send() {
   fi
   _saveaccountconf_mutable TELEGRAM_BOT_CHATID "$TELEGRAM_BOT_CHATID"
 
+  _content="$(printf "%s" "$_content" | sed -e 's/\([_*`\[]\)/\\\\\1/g')"
   _content="$(printf "*%s*\n%s" "$_subject" "$_content" | _json_encode)"
   _data="{\"text\": \"$_content\", "
   _data="$_data\"chat_id\": \"$TELEGRAM_BOT_CHATID\", "
   _data="$_data\"parse_mode\": \"markdown\", "
   _data="$_data\"disable_web_page_preview\": \"1\"}"
 
+  _debug "$_data"
+
   export _H1="Content-Type: application/json"
   _telegram_bot_url="https://api.telegram.org/bot${TELEGRAM_BOT_APITOKEN}/sendMessage"
-  if _post "$_data" "$_telegram_bot_url"; then
+  if _post "$_data" "$_telegram_bot_url" >/dev/null; then
     # shellcheck disable=SC2154
     _message=$(printf "%s\n" "$response" | sed -n 's/.*"ok":\([^,]*\).*/\1/p')
     if [ "$_message" = "true" ]; then