diff --git a/dnsapi/dns_czechia.sh b/dnsapi/dns_czechia.sh
new file mode 100644
index 00000000..4a7967ec
--- /dev/null
+++ b/dnsapi/dns_czechia.sh
@@ -0,0 +1,195 @@
+#!/usr/bin/env sh
+
+# dns_czechia.sh - CZECHIA.COM/ZONER DNS API for acme.sh (DNS-01)
+#
+# Documentation: https://api.czechia.com/swagger/index.html
+
+#shellcheck disable=SC2034
+dns_czechia_info='[
+  {"name":"CZ_AuthorizationToken","usage":"Your API token from CZECHIA.COM/Zoner administration.","required":"1"},
+  {"name":"CZ_Zones","usage":"Managed zones separated by comma or space (e.g. \"example.com\").","required":"1"},
+  {"name":"CZ_API_BASE","usage":"Defaults to https://api.czechia.com","required":"0"}
+]'
+
+dns_czechia_add() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  _debug "dns_czechia_add fulldomain='$fulldomain'"
+
+  if [ -z "$fulldomain" ] || [ -z "$txtvalue" ]; then
+    _err "dns_czechia_add: missing fulldomain or txtvalue"
+    return 1
+  fi
+
+  _czechia_load_conf || return 1
+
+  _current_zone=$(_czechia_pick_zone "$fulldomain")
+  if [ -z "$_current_zone" ]; then
+    _err "No matching zone found for $fulldomain. Please check CZ_Zones."
+    return 1
+  fi
+
+  _cz=$(printf "%s" "$_current_zone" | _lower_case | sed 's/[[:space:]]//g; s/\.$//')
+  _tk=$(printf "%s" "$CZ_AuthorizationToken" | sed 's/^[[:space:]]*//; s/[[:space:]]*$//')
+
+  if [ -z "$_cz" ] || [ -z "$_tk" ]; then
+    _err "Missing zone or CZ_AuthorizationToken."
+    return 1
+  fi
+
+  _url="$CZ_API_BASE/api/DNS/$_cz/TXT"
+  _fd=$(printf "%s" "$fulldomain" | _lower_case | sed 's/\.$//')
+
+  if [ "$_fd" = "$_cz" ]; then
+    _h="@"
+  else
+    _h=$(printf "%s" "$_fd" | sed "s/\.$_cz$//")
+    [ "$_h" = "$_fd" ] && _h="@"
+  fi
+  [ -z "$_h" ] && _h="@"
+
+  _info "Adding TXT record for $_h in zone $_cz"
+
+  _h_esc=$(printf "%s" "$_h" | sed 's/\\/\\\\/g; s/"/\\"/g')
+  _txt_esc=$(printf "%s" "$txtvalue" | sed 's/\\/\\\\/g; s/"/\\"/g')
+  _body="{\"hostName\":\"$_h_esc\",\"text\":\"$_txt_esc\",\"ttl\":300,\"publishZone\":1}"
+
+  _debug "URL: $_url"
+  _debug "Body: $_body"
+
+  export _H1="Content-Type: application/json"
+  export _H2="AuthorizationToken: $_tk"
+
+  _res="$(_post "$_body" "$_url" "" "POST")"
+  _post_exit="$?"
+  _debug2 "Response: $_res"
+
+  if [ "$_post_exit" -ne 0 ]; then
+    _err "API request failed. exit code $_post_exit"
+    return 1
+  fi
+
+  if _contains "$_res" "already exists"; then
+    _info "Record already exists, skipping."
+    return 0
+  fi
+
+  if _contains "$_res" "\"status\":4" || _contains "$_res" "\"status\":5" || _contains "$_res" "\"errors\""; then
+    _err "API error: $_res"
+    return 1
+  fi
+
+  return 0
+}
+
+dns_czechia_rm() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  _debug "dns_czechia_rm fulldomain='$fulldomain'"
+
+  if [ -z "$fulldomain" ] || [ -z "$txtvalue" ]; then
+    _err "dns_czechia_rm: missing fulldomain or txtvalue"
+    return 1
+  fi
+
+  _czechia_load_conf || return 1
+
+  _current_zone=$(_czechia_pick_zone "$fulldomain")
+  if [ -z "$_current_zone" ]; then
+    _err "No matching zone found for $fulldomain. Please check CZ_Zones configuration."
+    return 1
+  fi
+
+  _cz=$(printf "%s" "$_current_zone" | _lower_case | sed 's/[[:space:]]//g; s/\.$//')
+  _tk=$(printf "%s" "$CZ_AuthorizationToken" | sed 's/^[[:space:]]*//; s/[[:space:]]*$//')
+
+  if [ -z "$_cz" ] || [ -z "$_tk" ]; then
+    _err "Missing zone or CZ_AuthorizationToken."
+    return 1
+  fi
+
+  _url="$CZ_API_BASE/api/DNS/$_cz/TXT"
+  _fd=$(printf "%s" "$fulldomain" | _lower_case | sed 's/\.$//')
+
+  if [ "$_fd" = "$_cz" ]; then
+    _h="@"
+  else
+    _h=$(printf "%s" "$_fd" | sed "s/\.$_cz$//")
+    [ "$_h" = "$_fd" ] && _h="@"
+  fi
+  [ -z "$_h" ] && _h="@"
+
+  _h_esc=$(printf "%s" "$_h" | sed 's/\\/\\\\/g; s/"/\\"/g')
+  _txt_esc=$(printf "%s" "$txtvalue" | sed 's/\\/\\\\/g; s/"/\\"/g')
+  _body="{\"hostName\":\"$_h_esc\",\"text\":\"$_txt_esc\",\"ttl\":300,\"publishZone\":1}"
+
+  _debug "URL: $_url"
+  _debug "Body: $_body"
+
+  export _H1="Content-Type: application/json"
+  export _H2="AuthorizationToken: $_tk"
+
+  _res="$(_post "$_body" "$_url" "" "DELETE")"
+  _post_exit="$?"
+  _debug2 "Response: $_res"
+
+  if [ "$_post_exit" -ne 0 ]; then
+    _err "CZECHIA DNS API DELETE request failed for $_fd: exit code $_post_exit, response: $_res"
+    return 1
+  fi
+
+  _res_normalized=$(printf '%s' "$_res" | _normalizeJson)
+
+  if _contains "$_res_normalized" '"isError":true'; then
+    _err "CZECHIA DNS API reported an error while deleting TXT for $_fd: $_res"
+    return 1
+  fi
+
+  return 0
+}
+
+_czechia_load_conf() {
+  CZ_AuthorizationToken="${CZ_AuthorizationToken:-$(_readaccountconf_mutable CZ_AuthorizationToken)}"
+  if [ -z "$CZ_AuthorizationToken" ]; then
+    _err "Missing CZ_AuthorizationToken"
+    return 1
+  fi
+
+  CZ_Zones="${CZ_Zones:-$(_readaccountconf_mutable CZ_Zones)}"
+  if [ -z "$CZ_Zones" ]; then
+    _err "Missing CZ_Zones"
+    return 1
+  fi
+
+  CZ_API_BASE="${CZ_API_BASE:-$(_readaccountconf_mutable CZ_API_BASE)}"
+  [ -z "$CZ_API_BASE" ] && CZ_API_BASE="https://api.czechia.com"
+
+  _saveaccountconf_mutable CZ_AuthorizationToken "$CZ_AuthorizationToken"
+  _saveaccountconf_mutable CZ_Zones "$CZ_Zones"
+  _saveaccountconf_mutable CZ_API_BASE "$CZ_API_BASE"
+
+  return 0
+}
+
+_czechia_pick_zone() {
+  _fd=$(printf "%s" "$1" | _lower_case | sed 's/\.$//')
+  _best_zone=""
+
+  _zones_space=$(printf "%s" "$CZ_Zones" | sed 's/,/ /g')
+  for _z in $_zones_space; do
+    _clean_z=$(printf "%s" "$_z" | _lower_case | sed 's/[[:space:]]//g; s/\.$//')
+    [ -z "$_clean_z" ] && continue
+
+    case "$_fd" in
+    "$_clean_z" | *."$_clean_z")
+      if [ ${#_clean_z} -gt ${#_best_zone} ]; then
+        _best_zone="$_clean_z"
+      fi
+      ;;
+    esac
+  done
+
+  printf "%s" "$_best_zone"
+}