diff --git a/README.md b/README.md
index 50419892..de8c52a6 100644
--- a/README.md
+++ b/README.md
@@ -358,6 +358,8 @@ You don't have to do anything manually!
 1. Rackspace Cloud DNS (https://www.rackspace.com)
 1. Online.net API (https://online.net/)
 1. MyDevil.net (https://www.mydevil.net/)
+1. Core-Networks.de (https://core-networks.de)
+1. NederHost API (https://www.nederhost.nl/)
 1. UltraDNS API (https://portal.ultradns.com)
 
 And:
diff --git a/acme.sh b/acme.sh
index 8ee22479..1887bc90 100755
--- a/acme.sh
+++ b/acme.sh
@@ -9,6 +9,9 @@ PROJECT_ENTRY="acme.sh"
 PROJECT="https://github.com/Neilpang/$PROJECT_NAME"
 
 DEFAULT_INSTALL_HOME="$HOME/.$PROJECT_NAME"
+
+_WINDOWS_SCHEDULER_NAME="$PROJECT_NAME.cron"
+
 _SCRIPT_="$0"
 
 _SUB_FOLDERS="dnsapi deploy"
@@ -19,8 +22,8 @@ LETSENCRYPT_STAGING_CA_V1="https://acme-staging.api.letsencrypt.org/directory"
 LETSENCRYPT_CA_V2="https://acme-v02.api.letsencrypt.org/directory"
 LETSENCRYPT_STAGING_CA_V2="https://acme-staging-v02.api.letsencrypt.org/directory"
 
-DEFAULT_CA=$LETSENCRYPT_CA_V1
-DEFAULT_STAGING_CA=$LETSENCRYPT_STAGING_CA_V1
+DEFAULT_CA=$LETSENCRYPT_CA_V2
+DEFAULT_STAGING_CA=$LETSENCRYPT_STAGING_CA_V2
 
 DEFAULT_USER_AGENT="$PROJECT_NAME/$VER ($PROJECT)"
 DEFAULT_ACCOUNT_EMAIL=""
@@ -66,6 +69,9 @@ END_CERT="-----END CERTIFICATE-----"
 CONTENT_TYPE_JSON="application/jose+json"
 RENEW_SKIP=2
 
+B64CONF_START="__ACME_BASE64__START_"
+B64CONF_END="__ACME_BASE64__END_"
+
 ECC_SEP="_"
 ECC_SUFFIX="${ECC_SEP}ecc"
 
@@ -1964,12 +1970,16 @@ _setopt() {
   _debug3 "$(grep -n "^$__opt$__sep" "$__conf")"
 }
 
-#_save_conf  file key  value
+#_save_conf  file key  value base64encode
 #save to conf
 _save_conf() {
   _s_c_f="$1"
   _sdkey="$2"
   _sdvalue="$3"
+  _b64encode="$4"
+  if [ "$_sdvalue" ] && [ "$_b64encode" ]; then
+    _sdvalue="${B64CONF_START}$(printf "%s" "${_sdvalue}" | _base64)${B64CONF_END}"
+  fi
   if [ "$_s_c_f" ]; then
     _setopt "$_s_c_f" "$_sdkey" "=" "'$_sdvalue'"
   else
@@ -1994,19 +2004,20 @@ _read_conf() {
   _r_c_f="$1"
   _sdkey="$2"
   if [ -f "$_r_c_f" ]; then
-    (
-      eval "$(grep "^$_sdkey *=" "$_r_c_f")"
-      eval "printf \"%s\" \"\$$_sdkey\""
-    )
+    _sdv="$(grep "^$_sdkey *=" "$_r_c_f" | cut -d = -f 2-1000 | tr -d "'")"
+    if _startswith "$_sdv" "${B64CONF_START}" && _endswith "$_sdv" "${B64CONF_END}"; then
+      _sdv="$(echo "$_sdv" | sed "s/${B64CONF_START}//" | sed "s/${B64CONF_END}//" | _dbase64)"
+    fi
+    printf "%s" "$_sdv"
   else
     _debug "config file is empty, can not read $_sdkey"
   fi
 }
 
-#_savedomainconf   key  value
+#_savedomainconf   key  value  base64encode
 #save to domain.conf
 _savedomainconf() {
-  _save_conf "$DOMAIN_CONF" "$1" "$2"
+  _save_conf "$DOMAIN_CONF" "$@"
 }
 
 #_cleardomainconf   key
@@ -2019,14 +2030,14 @@ _readdomainconf() {
   _read_conf "$DOMAIN_CONF" "$1"
 }
 
-#_saveaccountconf  key  value
+#_saveaccountconf  key  value  base64encode
 _saveaccountconf() {
-  _save_conf "$ACCOUNT_CONF_PATH" "$1" "$2"
+  _save_conf "$ACCOUNT_CONF_PATH" "$@"
 }
 
-#key  value
+#key  value base64encode
 _saveaccountconf_mutable() {
-  _save_conf "$ACCOUNT_CONF_PATH" "SAVED_$1" "$2"
+  _save_conf "$ACCOUNT_CONF_PATH" "SAVED_$1" "$2" "$3"
   #remove later
   _clearaccountconf "$1"
 }
@@ -3642,9 +3653,9 @@ issue() {
   _savedomainconf "Le_Alt" "$_alt_domains"
   _savedomainconf "Le_Webroot" "$_web_roots"
 
-  _savedomainconf "Le_PreHook" "$_pre_hook"
-  _savedomainconf "Le_PostHook" "$_post_hook"
-  _savedomainconf "Le_RenewHook" "$_renew_hook"
+  _savedomainconf "Le_PreHook" "$_pre_hook" "base64"
+  _savedomainconf "Le_PostHook" "$_post_hook" "base64"
+  _savedomainconf "Le_RenewHook" "$_renew_hook" "base64"
 
   if [ "$_local_addr" ]; then
     _savedomainconf "Le_LocalAddress" "$_local_addr"
@@ -3657,8 +3668,12 @@ issue() {
     _cleardomainconf "Le_ChallengeAlias"
   fi
 
-  Le_API="$ACME_DIRECTORY"
-  _savedomainconf "Le_API" "$Le_API"
+  if [ "$ACME_DIRECTORY" != "$DEFAULT_CA" ]; then
+    Le_API="$ACME_DIRECTORY"
+    _savedomainconf "Le_API" "$Le_API"
+  else
+    _cleardomainconf Le_API
+  fi
 
   if [ "$_alt_domains" = "$NO_VALUE" ]; then
     _alt_domains=""
@@ -4242,7 +4257,7 @@ $_authorizations_map"
 
     _link_cert_retry=0
     _MAX_CERT_RETRY=5
-    while [ -z "$Le_LinkCert" ] && [ "$_link_cert_retry" -lt "$_MAX_CERT_RETRY" ]; do
+    while [ "$_link_cert_retry" -lt "$_MAX_CERT_RETRY" ]; do
       if _contains "$response" "\"status\":\"valid\""; then
         _debug "Order status is valid."
         Le_LinkCert="$(echo "$response" | tr -d '\r\n' | _egrep_o '"certificate" *: *"[^"]*"' | cut -d '"' -f 4)"
@@ -4455,7 +4470,7 @@ $_authorizations_map"
     _savedomainconf "Le_RealCertPath" "$_real_cert"
     _savedomainconf "Le_RealCACertPath" "$_real_ca"
     _savedomainconf "Le_RealKeyPath" "$_real_key"
-    _savedomainconf "Le_ReloadCmd" "$_reload_cmd"
+    _savedomainconf "Le_ReloadCmd" "$_reload_cmd" "base64"
     _savedomainconf "Le_RealFullChainPath" "$_real_fullchain"
     if ! _installcert "$_main_domain" "$_real_cert" "$_real_key" "$_real_ca" "$_real_fullchain" "$_reload_cmd"; then
       return 1
@@ -4492,6 +4507,16 @@ 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"
+  fi
+
   if [ "$Le_API" ]; then
     if [ "$_OLD_CA_HOST" = "$Le_API" ]; then
       export Le_API="$DEFAULT_CA"
@@ -4522,6 +4547,10 @@ renew() {
   fi
 
   IS_RENEW="1"
+  Le_ReloadCmd="$(_readdomainconf Le_ReloadCmd)"
+  Le_PreHook="$(_readdomainconf Le_PreHook)"
+  Le_PostHook="$(_readdomainconf Le_PostHook)"
+  Le_RenewHook="$(_readdomainconf Le_RenewHook)"
   issue "$Le_Webroot" "$Le_Domain" "$Le_Alt" "$Le_Keylength" "$Le_RealCertPath" "$Le_RealKeyPath" "$Le_RealCACertPath" "$Le_ReloadCmd" "$Le_RealFullChainPath" "$Le_PreHook" "$Le_PostHook" "$Le_RenewHook" "$Le_LocalAddress" "$Le_ChallengeAlias"
   res="$?"
   if [ "$res" != "0" ]; then
@@ -4802,7 +4831,7 @@ installcert() {
   _savedomainconf "Le_RealCertPath" "$_real_cert"
   _savedomainconf "Le_RealCACertPath" "$_real_ca"
   _savedomainconf "Le_RealKeyPath" "$_real_key"
-  _savedomainconf "Le_ReloadCmd" "$_reload_cmd"
+  _savedomainconf "Le_ReloadCmd" "$_reload_cmd" "base64"
   _savedomainconf "Le_RealFullChainPath" "$_real_fullchain"
 
   _installcert "$_main_domain" "$_real_cert" "$_real_key" "$_real_ca" "$_real_fullchain" "$_reload_cmd"
@@ -4886,7 +4915,7 @@ _installcert() {
       export CERT_KEY_PATH
       export CA_CERT_PATH
       export CERT_FULLCHAIN_PATH
-      export Le_Domain
+      export Le_Domain="$_main_domain"
       cd "$DOMAIN_PATH" && eval "$_reload_cmd"
     ); then
       _info "$(__green "Reload success")"
@@ -4897,35 +4926,107 @@ _installcert() {
 
 }
 
+__read_password() {
+  unset _pp
+  prompt="Enter Password:"
+  while IFS= read -p "$prompt" -r -s -n 1 char; do
+    if [ "$char" = $'\0' ]; then
+      break
+    fi
+    prompt='*'
+    _pp="$_pp$char"
+  done
+  echo "$_pp"
+}
+
+_install_win_taskscheduler() {
+  _lesh="$1"
+  _centry="$2"
+  _randomminute="$3"
+  if ! _exists cygpath; then
+    _err "cygpath not found"
+    return 1
+  fi
+  if ! _exists schtasks; then
+    _err "schtasks.exe is not found, are you on Windows?"
+    return 1
+  fi
+  _winbash="$(cygpath -w $(which bash))"
+  _debug _winbash "$_winbash"
+  if [ -z "$_winbash" ]; then
+    _err "can not find bash path"
+    return 1
+  fi
+  _myname="$(whoami)"
+  _debug "_myname" "$_myname"
+  if [ -z "$_myname" ]; then
+    _err "can not find my user name"
+    return 1
+  fi
+  _debug "_lesh" "$_lesh"
+
+  _info "To install scheduler task in your Windows account, you must input your windows password."
+  _info "$PROJECT_NAME doesn't save your password."
+  _info "Please input your Windows password for: $(__green "$_myname")"
+  _password="$(__read_password)"
+  #SCHTASKS.exe '/create' '/SC' 'DAILY' '/TN' "$_WINDOWS_SCHEDULER_NAME" '/F' '/ST' "00:$_randomminute" '/RU' "$_myname" '/RP' "$_password" '/TR' "$_winbash -l -c '$_lesh --cron --home \"$LE_WORKING_DIR\" $_centry'" >/dev/null
+  echo SCHTASKS.exe '/create' '/SC' 'DAILY' '/TN' "$_WINDOWS_SCHEDULER_NAME" '/F' '/ST' "00:$_randomminute" '/RU' "$_myname" '/RP' "$_password" '/TR' "\"$_winbash -l -c '$_lesh --cron --home \"$LE_WORKING_DIR\" $_centry'\"" | cmd.exe >/dev/null
+  echo
+
+}
+
+_uninstall_win_taskscheduler() {
+  if ! _exists schtasks; then
+    _err "schtasks.exe is not found, are you on Windows?"
+    return 1
+  fi
+  if ! echo SCHTASKS /query /tn "$_WINDOWS_SCHEDULER_NAME" | cmd.exe >/dev/null; then
+    _debug "scheduler $_WINDOWS_SCHEDULER_NAME is not found."
+  else
+    _info "Removing $_WINDOWS_SCHEDULER_NAME"
+    echo SCHTASKS /delete /f /tn "$_WINDOWS_SCHEDULER_NAME" | cmd.exe >/dev/null
+  fi
+}
+
 #confighome
 installcronjob() {
   _c_home="$1"
   _initpath
   _CRONTAB="crontab"
+  if [ -f "$LE_WORKING_DIR/$PROJECT_ENTRY" ]; then
+    lesh="\"$LE_WORKING_DIR\"/$PROJECT_ENTRY"
+  else
+    _err "Can not install cronjob, $PROJECT_ENTRY not found."
+    return 1
+  fi
+  if [ "$_c_home" ]; then
+    _c_entry="--config-home \"$_c_home\" "
+  fi
+  _t=$(_time)
+  random_minute=$(_math $_t % 60)
+
   if ! _exists "$_CRONTAB" && _exists "fcrontab"; then
     _CRONTAB="fcrontab"
   fi
+
   if ! _exists "$_CRONTAB"; then
+    if _exists cygpath && _exists schtasks.exe; then
+      _info "It seems you are on Windows,  let's install Windows scheduler task."
+      if _install_win_taskscheduler "$lesh" "$_c_entry" "$random_minute"; then
+        _info "Install Windows scheduler task success."
+        return 0
+      else
+        _err "Install Windows scheduler task failed."
+        return 1
+      fi
+    fi
     _err "crontab/fcrontab doesn't exist, so, we can not install cron jobs."
     _err "All your certs will not be renewed automatically."
     _err "You must add your own cron job to call '$PROJECT_ENTRY --cron' everyday."
     return 1
   fi
-
   _info "Installing cron job"
   if ! $_CRONTAB -l | grep "$PROJECT_ENTRY --cron"; then
-    if [ -f "$LE_WORKING_DIR/$PROJECT_ENTRY" ]; then
-      lesh="\"$LE_WORKING_DIR\"/$PROJECT_ENTRY"
-    else
-      _err "Can not install cronjob, $PROJECT_ENTRY not found."
-      return 1
-    fi
-
-    if [ "$_c_home" ]; then
-      _c_entry="--config-home \"$_c_home\" "
-    fi
-    _t=$(_time)
-    random_minute=$(_math $_t % 60)
     if _exists uname && uname -a | grep SunOS >/dev/null; then
       $_CRONTAB -l | {
         cat
@@ -4953,6 +5054,16 @@ uninstallcronjob() {
   fi
 
   if ! _exists "$_CRONTAB"; then
+    if _exists cygpath && _exists schtasks.exe; then
+      _info "It seems you are on Windows,  let's uninstall Windows scheduler task."
+      if _uninstall_win_taskscheduler; then
+        _info "Uninstall Windows scheduler task success."
+        return 0
+      else
+        _err "Uninstall Windows scheduler task failed."
+        return 1
+      fi
+    fi
     return
   fi
   _info "Removing cron job"
@@ -5280,13 +5391,17 @@ _precheck() {
 
   if [ -z "$_nocron" ]; then
     if ! _exists "crontab" && ! _exists "fcrontab"; then
-      _err "It is recommended to install crontab first. try to install 'cron, crontab, crontabs or vixie-cron'."
-      _err "We need to set cron job to renew the certs automatically."
-      _err "Otherwise, your certs will not be able to be renewed automatically."
-      if [ -z "$FORCE" ]; then
-        _err "Please add '--force' and try install again to go without crontab."
-        _err "./$PROJECT_ENTRY --install --force"
-        return 1
+      if _exists cygpath && _exists schtasks.exe; then
+        _info "It seems you are on Windows,  we will install Windows scheduler task."
+      else
+        _err "It is recommended to install crontab first. try to install 'cron, crontab, crontabs or vixie-cron'."
+        _err "We need to set cron job to renew the certs automatically."
+        _err "Otherwise, your certs will not be able to be renewed automatically."
+        if [ -z "$FORCE" ]; then
+          _err "Please add '--force' and try install again to go without crontab."
+          _err "./$PROJECT_ENTRY --install --force"
+          return 1
+        fi
       fi
     fi
   fi
diff --git a/deploy/README.md b/deploy/README.md
index f290756a..44d53225 100644
--- a/deploy/README.md
+++ b/deploy/README.md
@@ -349,10 +349,10 @@ $ export QINIU_SK="bar"
 $ acme.sh --deploy -d example.com --deploy-hook qiniu
 ```
 
-假如您部署的证书为泛域名证书，您还需要设置 `QINIU_CDN_DOMAIN` 变量，指定实际需要部署的域名：
+假如您部署的证书为泛域名证书，您还需要设置 `QINIU_CDN_DOMAIN` 变量，指定实际需要部署的域名(请注意泛域名前的点)：
 
 ```sh
-$ export QINIU_CDN_DOMAIN="cdn.example.com"
+$ export QINIU_CDN_DOMAIN=".cdn.example.com"
 $ acme.sh --deploy -d example.com --deploy-hook qiniu
 ```
 
@@ -375,10 +375,10 @@ $ acme.sh --deploy -d example.com --deploy-hook qiniu
 
 (Optional), If you are using wildcard certificate,
 you may need export `QINIU_CDN_DOMAIN` to specify which domain
-you want to update:
+you want to update (please note the leading dot):
 
 ```sh
-$ export QINIU_CDN_DOMAIN="cdn.example.com"
+$ export QINIU_CDN_DOMAIN=".cdn.example.com"
 $ acme.sh --deploy -d example.com --deploy-hook qiniu
 ```
 
diff --git a/deploy/qiniu.sh b/deploy/qiniu.sh
index 158b8dbf..e46e6fb3 100644
--- a/deploy/qiniu.sh
+++ b/deploy/qiniu.sh
@@ -87,6 +87,6 @@ qiniu_deploy() {
 }
 
 _make_access_token() {
-  _token="$(printf "%s\n" "$1" | _hmac "sha1" "$(printf "%s" "$QINIU_SK" | _hex_dump | tr -d " ")" | _base64)"
+  _token="$(printf "%s\n" "$1" | _hmac "sha1" "$(printf "%s" "$QINIU_SK" | _hex_dump | tr -d " ")" | _base64 | tr -- '+/' '-_')"
   echo "$QINIU_AK:$_token"
 }
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 28b9e60b..9baa5666 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -1279,7 +1279,38 @@ acme.sh --issue --dns dns_mydevil -d example.com -d *.example.com
 
 After certificate is ready, you can install it with [deploy command](../deploy/README.md#14-deploy-your-cert-on-mydevilnet).
 
-## 67. Use UltraDNS API
+## 67. Use Core-Networks API to automatically issue cert
+
+First you need to login to your Core-Networks account to to set up an API-User.
+Then export username and password to use these credentials.
+
+```
+export CN_User="user"
+export CN_Password="passowrd"
+```
+
+Ok, let's issue a cert now:
+```
+acme.sh --issue --dns dns_cn -d example.com -d www.example.com
+```
+
+The `CN_User` and `CN_Password` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+## 68. Use NederHost API
+
+Create an API token in Mijn NederHost.
+
+Set your API key:
+```
+export NederHost_Key='xxx'
+```
+
+To issue a certificate run:
+```
+acme.sh --issue --dns dns_nederhost -d example.com -d *.example.com
+```
+
+## 69. Use UltraDNS API
 
 UltraDNS is a paid for service that provides DNS, as well as Web and Mail forwarding (as well as reporting, auditing, and advanced tools).
 
@@ -1325,3 +1356,5 @@ See:  https://github.com/Neilpang/acme.sh/wiki/DNS-API-Dev-Guide
 # Use lexicon DNS API
 
 https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
+
+
diff --git a/dnsapi/dns_cn.sh b/dnsapi/dns_cn.sh
new file mode 100644
index 00000000..38d1f4aa
--- /dev/null
+++ b/dnsapi/dns_cn.sh
@@ -0,0 +1,157 @@
+#!/usr/bin/env sh
+
+# DNS API for acme.sh for Core-Networks (https://beta.api.core-networks.de/doc/).
+# created by 5ll and francis
+
+CN_API="https://beta.api.core-networks.de"
+
+########  Public functions  #####################
+
+dns_cn_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if ! _cn_login; then
+    _err "login failed"
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _cn_get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug "_sub_domain $_sub_domain"
+  _debug "_domain $_domain"
+
+  _info "Adding record"
+  curData="{\"name\":\"$_sub_domain\",\"ttl\":120,\"type\":\"TXT\",\"data\":\"$txtvalue\"}"
+  curResult="$(_post "${curData}" "${CN_API}/dnszones/${_domain}/records/")"
+
+  _debug "curData $curData"
+  _debug "curResult $curResult"
+
+  if _contains "$curResult" ""; then
+    _info "Added, OK"
+
+    if ! _cn_commit; then
+      _err "commiting changes failed"
+      return 1
+    fi
+    return 0
+
+  else
+    _err "Add txt record error."
+    _debug "curData is $curData"
+    _debug "curResult is $curResult"
+    _err "error adding text record, response was $curResult"
+    return 1
+  fi
+}
+
+dns_cn_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if ! _cn_login; then
+    _err "login failed"
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _cn_get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _info "Deleting record"
+  curData="{\"name\":\"$_sub_domain\",\"data\":\"$txtvalue\"}"
+  curResult="$(_post "${curData}" "${CN_API}/dnszones/${_domain}/records/delete")"
+  _debug curData is "$curData"
+
+  _info "commiting changes"
+  if ! _cn_commit; then
+    _err "commiting changes failed"
+    return 1
+  fi
+
+  _info "Deletet txt record"
+  return 0
+}
+
+###################  Private functions below  ##################################
+_cn_login() {
+  CN_User="${CN_User:-$(_readaccountconf_mutable CN_User)}"
+  CN_Password="${CN_Password:-$(_readaccountconf_mutable CN_Password)}"
+  if [ -z "$CN_User" ] || [ -z "$CN_Password" ]; then
+    CN_User=""
+    CN_Password=""
+    _err "You must export variables: CN_User and CN_Password"
+    return 1
+  fi
+
+  #save the config variables to the account conf file.
+  _saveaccountconf_mutable CN_User "$CN_User"
+  _saveaccountconf_mutable CN_Password "$CN_Password"
+
+  _info "Getting an AUTH-Token"
+  curData="{\"login\":\"${CN_User}\",\"password\":\"${CN_Password}\"}"
+  curResult="$(_post "${curData}" "${CN_API}/auth/token")"
+  _debug "Calling _CN_login: '${curData}' '${CN_API}/auth/token'"
+
+  if _contains "${curResult}" '"token":"'; then
+    authToken=$(echo "${curResult}" | cut -d ":" -f2 | cut -d "," -f1 | sed 's/^.\(.*\).$/\1/')
+    export _H1="Authorization: Bearer $authToken"
+    _info "Successfully acquired AUTH-Token"
+    _debug "AUTH-Token: '${authToken}'"
+    _debug "_H1 '${_H1}'"
+  else
+    _err "Couldn't acquire an AUTH-Token"
+    return 1
+  fi
+}
+
+# Commit changes
+_cn_commit() {
+  _info "Commiting changes"
+  _post "" "${CN_API}/dnszones/$h/records/commit"
+}
+
+_cn_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while true; do
+
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    _debug _H1 "${_H1}"
+
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    _cn_zonelist="$(_get ${CN_API}/dnszones/)"
+    _debug _cn_zonelist "${_cn_zonelist}"
+
+    if [ "$?" != "0" ]; then
+      _err "something went wrong while getting the zone list"
+      return 1
+    fi
+
+    if _contains "$_cn_zonelist" "\"name\":\"$h\"" >/dev/null; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain=$h
+      return 0
+    else
+      _debug "Zonelist does not contain domain - iterating "
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+
+  done
+  _err "Zonelist does not contain domain - exiting"
+  return 1
+}
diff --git a/dnsapi/dns_hostingde.sh b/dnsapi/dns_hostingde.sh
index 50aa142f..1819e639 100644
--- a/dnsapi/dns_hostingde.sh
+++ b/dnsapi/dns_hostingde.sh
@@ -28,6 +28,7 @@ dns_hostingde_rm() {
 
 _hostingde_apiKey() {
   HOSTINGDE_APIKEY="${HOSTINGDE_APIKEY:-$(_readaccountconf_mutable HOSTINGDE_APIKEY)}"
+  HOSTINGDE_ENDPOINT="${HOSTINGDE_ENDPOINT:-$(_readaccountconf_mutable HOSTINGDE_ENDPOINT)}"
   if [ -z "$HOSTINGDE_APIKEY" ] || [ -z "$HOSTINGDE_ENDPOINT" ]; then
     HOSTINGDE_APIKEY=""
     HOSTINGDE_ENDPOINT=""
diff --git a/dnsapi/dns_nederhost.sh b/dnsapi/dns_nederhost.sh
new file mode 100755
index 00000000..0954ab65
--- /dev/null
+++ b/dnsapi/dns_nederhost.sh
@@ -0,0 +1,131 @@
+#!/usr/bin/env sh
+
+#NederHost_Key="sdfgikogfdfghjklkjhgfcdcfghjk"
+
+NederHost_Api="https://api.nederhost.nl/dns/v1"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_nederhost_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  NederHost_Key="${NederHost_Key:-$(_readaccountconf_mutable NederHost_Key)}"
+  if [ -z "$NederHost_Key" ]; then
+    NederHost_Key=""
+    _err "You didn't specify a NederHost api key."
+    _err "You can get yours from https://www.nederhost.nl/mijn_nederhost"
+    return 1
+  fi
+
+  #save the api key and email to the account conf file.
+  _saveaccountconf_mutable NederHost_Key "$NederHost_Key"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+  if _nederhost_rest PATCH "zones/$_domain/records/$fulldomain/TXT" "[{\"content\":\"$txtvalue\",\"ttl\":60}]"; then
+    if _contains "$response" "$fulldomain"; then
+      _info "Added, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+#fulldomain txtvalue
+dns_nederhost_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  NederHost_Key="${NederHost_Key:-$(_readaccountconf_mutable NederHost_Key)}"
+  if [ -z "$NederHost_Key" ]; then
+    NederHost_Key=""
+    _err "You didn't specify a NederHost api key."
+    _err "You can get yours from https://www.nederhost.nl/mijn_nederhost"
+    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 "$_domain"
+
+  _debug "Removing txt record"
+  _nederhost_rest DELETE "zones/${_domain}/records/$fulldomain/TXT?content=$txtvalue"
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while true; do
+    _domain=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+    _debug _domain "$_domain"
+    if [ -z "$_domain" ]; then
+      #not valid
+      return 1
+    fi
+
+    if _nederhost_rest GET "zones/${_domain}"; then
+      if [ "${_code}" = "204" ]; then
+        return 0
+      fi
+    else
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_nederhost_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  export _H1="Authorization: Bearer $NederHost_Key"
+  export _H2="Content-Type: application/json"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$NederHost_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$NederHost_Api/$ep")"
+  fi
+
+  _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
+  _debug "http response code $_code"
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}