diff --git a/README.md b/README.md
index e7ad4cfb..d36d6a88 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,7 @@ https://github.com/Neilpang/acmetest
 
 - Letsencrypt.org CA(default)
 - [BuyPass.com CA](https://github.com/Neilpang/acme.sh/wiki/BuyPass.com-CA)
+- [Pebble strict Mode](https://github.com/letsencrypt/pebble)
 
 # Supported modes
 
@@ -357,6 +358,10 @@ 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. Zone.ee (zone.eu) API (https://api.zone.eu/v2)
+1. UltraDNS API (https://portal.ultradns.com)
 1. OpenProvider API (https://www.openprovider.com/)
 
 And:
diff --git a/acme.sh b/acme.sh
index 93112a1a..752b49bc 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"
 
@@ -1827,23 +1833,29 @@ _send_signed_request() {
         nonceurl="$ACME_NEW_NONCE"
         if _post "" "$nonceurl" "" "HEAD" "$__request_conent_type"; then
           _headers="$(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)"
         fi
       fi
-      if [ -z "$_headers" ]; then
+      if [ -z "$_CACHED_NONCE" ]; then
         _debug2 "Get nonce with GET. ACME_DIRECTORY" "$ACME_DIRECTORY"
         nonceurl="$ACME_DIRECTORY"
         _headers="$(_get "$nonceurl" "onlyheader")"
+        _debug2 _headers "$_headers"
+        _CACHED_NONCE="$(echo "$_headers" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2)"
       fi
-
+      if [ -z "$_CACHED_NONCE" ] && [ "$ACME_NEW_NONCE" ]; then
+        _debug2 "Get nonce with GET. ACME_NEW_NONCE" "$ACME_NEW_NONCE"
+        nonceurl="$ACME_NEW_NONCE"
+        _headers="$(_get "$nonceurl" "onlyheader")"
+        _debug2 _headers "$_headers"
+        _CACHED_NONCE="$(echo "$_headers" | grep -i "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2)"
+      fi
+      _debug2 _CACHED_NONCE "$_CACHED_NONCE"
       if [ "$?" != "0" ]; then
         _err "Can not connect to $nonceurl to get nonce."
         return 1
       fi
-
-      _debug2 _headers "$_headers"
-
-      _CACHED_NONCE="$(echo "$_headers" | grep "Replay-Nonce:" | _head_n 1 | tr -d "\r\n " | cut -d ':' -f 2)"
-      _debug2 _CACHED_NONCE "$_CACHED_NONCE"
     else
       _debug2 "Use _CACHED_NONCE" "$_CACHED_NONCE"
     fi
@@ -1958,12 +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
@@ -1988,19 +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
@@ -2013,14 +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"
 }
@@ -2060,6 +2077,7 @@ _clearcaconf() {
 _startserver() {
   content="$1"
   ncaddr="$2"
+  _debug "content" "$content"
   _debug "ncaddr" "$ncaddr"
 
   _debug "startserver: $$"
@@ -2086,8 +2104,14 @@ _startserver() {
     SOCAT_OPTIONS="$SOCAT_OPTIONS,bind=${ncaddr}"
   fi
 
+  _content_len="$(printf "%s" "$content" | wc -c)"
+  _debug _content_len "$_content_len"
   _debug "_NC" "$_NC $SOCAT_OPTIONS"
-  $_NC $SOCAT_OPTIONS SYSTEM:"sleep 1; echo HTTP/1.0 200 OK; echo ; echo  $content; echo;" &
+  $_NC $SOCAT_OPTIONS SYSTEM:"sleep 1; \
+echo 'HTTP/1.0 200 OK'; \
+echo 'Content-Length\: $_content_len'; \
+echo ''; \
+printf -- '$content';" &
   serverproc="$!"
 }
 
@@ -3062,6 +3086,7 @@ _on_before_issue() {
       _info "Standalone mode."
       if [ -z "$Le_HTTPPort" ]; then
         Le_HTTPPort=80
+        _cleardomainconf "Le_HTTPPort"
       else
         _savedomainconf "Le_HTTPPort" "$Le_HTTPPort"
       fi
@@ -3269,7 +3294,7 @@ _regAccount() {
   fi
 
   _debug2 responseHeaders "$responseHeaders"
-  _accUri="$(echo "$responseHeaders" | grep "^Location:" | _head_n 1 | cut -d ' ' -f 2 | tr -d "\r\n")"
+  _accUri="$(echo "$responseHeaders" | grep -i "^Location:" | _head_n 1 | cut -d ' ' -f 2 | tr -d "\r\n")"
   _debug "_accUri" "$_accUri"
   if [ -z "$_accUri" ]; then
     _err "Can not find account id url."
@@ -3435,7 +3460,7 @@ __trigger_validation() {
   _t_vtype="$3"
   _debug2 _t_vtype "$_t_vtype"
   if [ "$ACME_VERSION" = "2" ]; then
-    _send_signed_request "$_t_url" "{\"keyAuthorization\": \"$_t_key_authz\"}"
+    _send_signed_request "$_t_url" "{}"
   else
     _send_signed_request "$_t_url" "{\"resource\": \"challenge\", \"type\": \"$_t_vtype\", \"keyAuthorization\": \"$_t_key_authz\"}"
   fi
@@ -3628,9 +3653,9 @@ issue() {
   _savedomainconf "Le_Alt" "$_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"
@@ -3643,8 +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=""
@@ -3722,7 +3751,7 @@ issue() {
         return 1
       fi
 
-      Le_OrderFinalize="$(echo "$response" | tr -d '\r\n' | _egrep_o '"finalize" *: *"[^"]*"' | cut -d '"' -f 4)"
+      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. $response"
@@ -3734,7 +3763,7 @@ issue() {
       #for dns manual mode
       _savedomainconf "Le_OrderFinalize" "$Le_OrderFinalize"
 
-      _authorizations_seg="$(echo "$response" | tr -d '\r\n' | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+      _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."
@@ -3820,7 +3849,7 @@ $_authorizations_map"
         thumbprint="$(__calc_account_thumbprint)"
       fi
 
-      entry="$(printf "%s\n" "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
+      entry="$(echo "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
       _debug entry "$entry"
       if [ -z "$entry" ]; then
         _err "Error, can not get domain token entry $d"
@@ -3832,7 +3861,7 @@ $_authorizations_map"
         _on_issue_err "$_post_hook"
         return 1
       fi
-      token="$(printf "%s\n" "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
+      token="$(echo "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
       _debug token "$token"
 
       if [ -z "$token" ]; then
@@ -3842,9 +3871,9 @@ $_authorizations_map"
         return 1
       fi
       if [ "$ACME_VERSION" = "2" ]; then
-        uri="$(printf "%s\n" "$entry" | _egrep_o '"url":"[^"]*' | cut -d '"' -f 4 | _head_n 1)"
+        uri="$(echo "$entry" | _egrep_o '"url":"[^"]*' | cut -d '"' -f 4 | _head_n 1)"
       else
-        uri="$(printf "%s\n" "$entry" | _egrep_o '"uri":"[^"]*' | cut -d '"' -f 4)"
+        uri="$(echo "$entry" | _egrep_o '"uri":"[^"]*' | cut -d '"' -f 4)"
       fi
       _debug uri "$uri"
 
@@ -3902,21 +3931,21 @@ $_authorizations_map"
           else
             txtdomain="_acme-challenge.$_d_alias"
           fi
-          dns_entries="${dns_entries}${_dns_root_d}${dvsep}_acme-challenge.$_dns_root_d$dvsep$txtdomain$dvsep$_currentRoot"
+          dns_entry="${_dns_root_d}${dvsep}_acme-challenge.$_dns_root_d$dvsep$txtdomain$dvsep$_currentRoot"
         else
           txtdomain="_acme-challenge.$_dns_root_d"
-          dns_entries="${dns_entries}${_dns_root_d}${dvsep}_acme-challenge.$_dns_root_d$dvsep$dvsep$_currentRoot"
+          dns_entry="${_dns_root_d}${dvsep}_acme-challenge.$_dns_root_d$dvsep$dvsep$_currentRoot"
         fi
+
         _debug txtdomain "$txtdomain"
         txt="$(printf "%s" "$keyauthorization" | _digest "sha256" | _url_replace)"
         _debug txt "$txt"
 
         d_api="$(_findHook "$_dns_root_d" dnsapi "$_currentRoot")"
-
         _debug d_api "$d_api"
-        dns_entries="$dns_entries$dvsep$txt${dvsep}$d_api
-"
-        _debug2 "$dns_entries"
+
+        dns_entry="$dns_entry$dvsep$txt${dvsep}$d_api"
+        _debug2 dns_entry "$dns_entry"
         if [ "$d_api" ]; then
           _info "Found domain api file: $d_api"
         else
@@ -3955,6 +3984,9 @@ $_authorizations_map"
           _clearup
           return 1
         fi
+        dns_entries="$dns_entries$dns_entry
+"
+        _debug2 "$dns_entries"
         dnsadded='1'
       fi
     done
@@ -4165,7 +4197,7 @@ $_authorizations_map"
       fi
 
       if [ "$status" = "invalid" ]; then
-        error="$(echo "$response" | tr -d "\r\n" | _egrep_o '"error":\{[^\}]*')"
+        error="$(echo "$response" | _egrep_o '"error":\{[^\}]*')"
         _debug2 error "$error"
         errordetail="$(echo "$error" | _egrep_o '"detail": *"[^"]*' | cut -d '"' -f 4)"
         _debug2 errordetail "$errordetail"
@@ -4205,20 +4237,66 @@ $_authorizations_map"
   der="$(_getfile "${CSR_PATH}" "${BEGIN_CSR}" "${END_CSR}" | tr -d "\r\n" | _url_replace)"
 
   if [ "$ACME_VERSION" = "2" ]; then
+    _info "Lets finalize the order, 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 [ "$code" != "200" ]; then
-      _err "Sign failed, code is not 200."
+      _err "Sign failed, finalize code is not 200."
       _err "$response"
       _on_issue_err "$_post_hook"
       return 1
     fi
-    Le_LinkCert="$(echo "$response" | tr -d '\r\n' | _egrep_o '"certificate" *: *"[^"]*"' | cut -d '"' -f 4)"
+    Le_LinkOrder="$(echo "$responseHeaders" | grep -i '^Location.*$' | _tail_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
+    if [ -z "$Le_LinkOrder" ]; then
+      _err "Sign error, can not get order link location header"
+      _err "responseHeaders" "$responseHeaders"
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    _savedomainconf "Le_LinkOrder" "$Le_LinkOrder"
 
-    _tempSignedResponse="$response"
+    _link_cert_retry=0
+    _MAX_CERT_RETRY=5
+    while [ "$_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 "$response" "\"processing\""; then
+        _info "Order status is processing, lets sleep and retry."
+        _sleep 2
+      else
+        _err "Sign error, wrong status"
+        _err "$response"
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
+      if ! _send_signed_request "$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 $_link_cert_retry + 1)"
+    done
+
+    if [ -z "$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 "Download cert, Le_LinkCert: $Le_LinkCert"
     if ! _send_signed_request "$Le_LinkCert"; then
       _err "Sign failed, can not download cert:$Le_LinkCert."
       _err "$response"
@@ -4237,7 +4315,7 @@ $_authorizations_map"
       _end_n="$(_math $_end_n + 1)"
       sed -n "${_end_n},9999p" "$CERT_FULLCHAIN_PATH" >"$CA_CERT_PATH"
     fi
-    response="$_tempSignedResponse"
+
   else
     if ! _send_signed_request "${ACME_NEW_ORDER}" "{\"resource\": \"$ACME_NEW_ORDER_RES\", \"csr\": \"$der\"}" "needbase64"; then
       _err "Sign failed. $response"
@@ -4395,7 +4473,7 @@ $_authorizations_map"
     _savedomainconf "Le_RealCertPath" "$_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
@@ -4432,6 +4510,16 @@ 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"
@@ -4462,6 +4550,10 @@ 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
@@ -4742,7 +4834,7 @@ 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"
@@ -4826,7 +4918,7 @@ _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")"
@@ -4837,35 +4929,107 @@ _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
@@ -4893,6 +5057,16 @@ uninstallcronjob() {
   fi
 
   if ! _exists "$_CRONTAB"; then
+    if _exists cygpath && _exists schtasks.exe; then
+      _info "It seems you are on Windows,  let's uninstall Windows scheduler task."
+      if _uninstall_win_taskscheduler; then
+        _info "Uninstall Windows scheduler task success."
+        return 0
+      else
+        _err "Uninstall Windows scheduler task failed."
+        return 1
+      fi
+    fi
     return
   fi
   _info "Removing cron job"
@@ -5024,7 +5198,7 @@ _deactivate() {
       _err "Can not get domain new order."
       return 1
     fi
-    _authorizations_seg="$(echo "$response" | tr -d '\r\n' | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+    _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."
@@ -5070,16 +5244,16 @@ _deactivate() {
     fi
     _debug "Trigger validation."
     vtype="$VTYPE_DNS"
-    entry="$(printf "%s\n" "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
+    entry="$(echo "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
     _debug entry "$entry"
     if [ -z "$entry" ]; then
       _err "Error, can not get domain token $d"
       return 1
     fi
-    token="$(printf "%s\n" "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
+    token="$(echo "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
     _debug token "$token"
 
-    uri="$(printf "%s\n" "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
+    uri="$(echo "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
     _debug uri "$uri"
 
     keyauthorization="$token.$thumbprint"
@@ -5101,11 +5275,11 @@ _deactivate() {
       break
     fi
 
-    _vtype="$(printf "%s\n" "$entry" | _egrep_o '"type": *"[^"]*"' | cut -d : -f 2 | tr -d '"')"
+    _vtype="$(echo "$entry" | _egrep_o '"type": *"[^"]*"' | cut -d : -f 2 | tr -d '"')"
     _debug _vtype "$_vtype"
     _info "Found $_vtype"
 
-    uri="$(printf "%s\n" "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
+    uri="$(echo "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
     _debug uri "$uri"
 
     if [ "$_d_type" ] && [ "$_d_type" != "$_vtype" ]; then
@@ -5220,13 +5394,17 @@ _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 3cbfe19a..20015c0c 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -1279,18 +1279,85 @@ 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 OpenProvider 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 Zone.ee DNS API
+
+First, you'll need to retrive your API key. Estonian insructions https://help.zone.eu/kb/zoneid-api-v2/
+
+```
+export ZONE_Username=yourusername
+export ZONE_Key=keygoeshere
+```
+
+To issue a cert run:
+
+```
+acme.sh --issue -d example.com -d www.example.com --dns dns_zone
+```
+
+`ZONE_Username` and `ZONE_Key` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+## 70. 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).
+
+More information can be found here: https://www.security.neustar/lp/ultra20/index.html
+
+The REST API documentation for this service is found here: https://portal.ultradns.com/static/docs/REST-API_User_Guide.pdf 
+
+Set your UltraDNS User name, and password; these would be the same you would use here:
+
+https://portal.ultradns.com/ - or if you create an API only user, that username and password would be better utilized.
+
+```
+export ULTRA_USR="abcd"
+export ULTRA_PWD="efgh"
+
+To issue a cert run:
+
+acme.sh --issue --dns dns_ultra -d example.com -d www.example.com
+```
+
+`ULTRA_USR` and `ULTRA_PWD` will be saved in `~/.acme.sh/account.conf` and will be resued when needed.
+
+## 71. Use OpenProvider API
 
 First, you need to enable API access and retrieve your password hash on https://rcp.openprovider.eu/account/dashboard.php
 
 ```
 export OPENPROVIDER_USER='username'
 export OPENPROVIDER_PASSWORDHASH='xxx'
-```
 
-To issue a cert run:
-
-```
 acme.sh --issue --dns dns_openprovider -d example.com -d www.example.com
 ```
 
@@ -1317,3 +1384,5 @@ 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_namecheap.sh b/dnsapi/dns_namecheap.sh
index fbf93c32..6553deb6 100755
--- a/dnsapi/dns_namecheap.sh
+++ b/dnsapi/dns_namecheap.sh
@@ -76,6 +76,22 @@ dns_namecheap_rm() {
 # _sub_domain=_acme-challenge.www
 # _domain=domain.com
 _get_root() {
+  fulldomain=$1
+
+  if ! _get_root_by_getList "$fulldomain"; then
+    _debug "Failed domain lookup via domains.getList api call. Trying domain lookup via domains.dns.getHosts api."
+    # The above "getList" api will only return hosts *owned* by the calling user. However, if the calling
+    # user is not the owner, but still has administrative rights, we must query the getHosts api directly.
+    # See this comment and the official namecheap response: http://disq.us/p/1q6v9x9
+    if ! _get_root_by_getHosts "$fulldomain"; then
+      return 1
+    fi
+  fi
+
+  return 0
+}
+
+_get_root_by_getList() {
   domain=$1
 
   if ! _namecheap_post "namecheap.domains.getList"; then
@@ -94,6 +110,10 @@ _get_root() {
       #not valid
       return 1
     fi
+    if ! _contains "$h" "\\."; then
+      #not valid
+      return 1
+    fi
 
     if ! _contains "$response" "$h"; then
       _debug "$h not found"
@@ -108,6 +128,31 @@ _get_root() {
   return 1
 }
 
+_get_root_by_getHosts() {
+  i=100
+  p=99
+
+  while [ $p -ne 0 ]; do
+
+    h=$(printf "%s" "$1" | cut -d . -f $i-100)
+    if [ -n "$h" ]; then
+      if _contains "$h" "\\."; then
+        _debug h "$h"
+        if _namecheap_set_tld_sld "$h"; then
+          _sub_domain=$(printf "%s" "$1" | cut -d . -f 1-$p)
+          _domain="$h"
+          return 0
+        else
+          _debug "$h not found"
+        fi
+      fi
+    fi
+    i="$p"
+    p=$(_math "$p" - 1)
+  done
+  return 1
+}
+
 _namecheap_set_publicip() {
 
   if [ -z "$NAMECHEAP_SOURCEIP" ]; then
diff --git a/dnsapi/dns_namecom.sh b/dnsapi/dns_namecom.sh
index 254952d6..0d5dd2c4 100755
--- a/dnsapi/dns_namecom.sh
+++ b/dnsapi/dns_namecom.sh
@@ -13,6 +13,8 @@ dns_namecom_add() {
   fulldomain=$1
   txtvalue=$2
 
+  Namecom_Username="${Namecom_Username:-$(_readaccountconf_mutable Namecom_Username)}"
+  Namecom_Token="${Namecom_Token:-$(_readaccountconf_mutable Namecom_Token)}"
   # First we need name.com credentials.
   if [ -z "$Namecom_Username" ]; then
     Namecom_Username=""
@@ -27,10 +29,11 @@ dns_namecom_add() {
     _err "Please specify that in your environment variable."
     return 1
   fi
-
+  _debug Namecom_Username "$Namecom_Username"
+  _secure_debug Namecom_Token "$Namecom_Token"
   # Save them in configuration.
-  _saveaccountconf Namecom_Username "$Namecom_Username"
-  _saveaccountconf Namecom_Token "$Namecom_Token"
+  _saveaccountconf_mutable Namecom_Username "$Namecom_Username"
+  _saveaccountconf_mutable Namecom_Token "$Namecom_Token"
 
   # Login in using API
   if ! _namecom_login; then
@@ -46,7 +49,7 @@ dns_namecom_add() {
   # Add TXT record.
   _namecom_addtxt_json="{\"host\":\"$_sub_domain\",\"type\":\"TXT\",\"answer\":\"$txtvalue\",\"ttl\":\"300\"}"
   if _namecom_rest POST "domains/$_domain/records" "$_namecom_addtxt_json"; then
-    _retvalue=$(printf "%s\n" "$response" | _egrep_o "\"$_sub_domain\"")
+    _retvalue=$(echo "$response" | _egrep_o "\"$_sub_domain\"")
     if [ "$_retvalue" ]; then
       _info "Successfully added TXT record, ready for validation."
       return 0
@@ -63,6 +66,8 @@ dns_namecom_rm() {
   fulldomain=$1
   txtvalue=$2
 
+  Namecom_Username="${Namecom_Username:-$(_readaccountconf_mutable Namecom_Username)}"
+  Namecom_Token="${Namecom_Token:-$(_readaccountconf_mutable Namecom_Token)}"
   if ! _namecom_login; then
     return 1
   fi
@@ -75,7 +80,7 @@ dns_namecom_rm() {
 
   # Get the record id.
   if _namecom_rest GET "domains/$_domain/records"; then
-    _record_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":[0-9]+,\"domainName\":\"$_domain\",\"host\":\"$_sub_domain\",\"fqdn\":\"$fulldomain.\",\"type\":\"TXT\",\"answer\":\"$txtvalue\"" | cut -d \" -f 3 | _egrep_o [0-9]+)
+    _record_id=$(echo "$response" | _egrep_o "\"id\":[0-9]+,\"domainName\":\"$_domain\",\"host\":\"$_sub_domain\",\"fqdn\":\"$fulldomain.\",\"type\":\"TXT\",\"answer\":\"$txtvalue\"" | cut -d \" -f 3 | _egrep_o [0-9]+)
     _debug record_id "$_record_id"
     if [ "$_record_id" ]; then
       _info "Successfully retrieved the record id for ACME challenge."
@@ -126,10 +131,12 @@ _namecom_login() {
   _namecom_auth=$(printf "%s:%s" "$Namecom_Username" "$Namecom_Token" | _base64)
 
   if _namecom_rest GET "hello"; then
-    retcode=$(printf "%s\n" "$response" | _egrep_o "\"username\"\:\"$Namecom_Username\"")
+    retcode=$(echo "$response" | _egrep_o "\"username\"\:\"$Namecom_Username\"")
     if [ "$retcode" ]; then
       _info "Successfully logged in."
     else
+      _err "$response"
+      _err "Please add your ip to api whitelist"
       _err "Logging in failed."
       return 1
     fi
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
+}
diff --git a/dnsapi/dns_netcup.sh b/dnsapi/dns_netcup.sh
index 2273eb7c..d5d7c22e 100644
--- a/dnsapi/dns_netcup.sh
+++ b/dnsapi/dns_netcup.sh
@@ -8,6 +8,7 @@ end="https://ccp.netcup.net/run/webservice/servers/endpoint.php?JSON"
 client=""
 
 dns_netcup_add() {
+  _debug NC_Apikey "$NC_Apikey"
   login
   if [ "$NC_Apikey" = "" ] || [ "$NC_Apipw" = "" ] || [ "$NC_CID" = "" ]; then
     _err "No Credentials given"
diff --git a/dnsapi/dns_ultra.sh b/dnsapi/dns_ultra.sh
new file mode 100644
index 00000000..0100b3b7
--- /dev/null
+++ b/dnsapi/dns_ultra.sh
@@ -0,0 +1,164 @@
+#!/usr/bin/env sh
+
+#
+# ULTRA_USR="your_user_goes_here"
+#
+# ULTRA_PWD="some_password_goes_here"
+
+ULTRA_API="https://restapi.ultradns.com/v2/"
+
+#Usage: add _acme-challenge.www.domain.com "some_long_string_of_characters_go_here_from_lets_encrypt"
+dns_ultra_add() {
+  fulldomain=$1
+  txtvalue=$2
+  export txtvalue
+  ULTRA_USR="${ULTRA_USR:-$(_readaccountconf_mutable ULTRA_USR)}"
+  ULTRA_PWD="${ULTRA_PWD:-$(_readaccountconf_mutable ULTRA_PWD)}"
+  if [ -z "$ULTRA_USR" ] || [ -z "$ULTRA_PWD" ]; then
+    ULTRA_USR=""
+    ULTRA_PWD=""
+    _err "You didn't specify an UltraDNS username and password yet"
+    return 1
+  fi
+  # save the username and password to the account conf file.
+  _saveaccountconf_mutable ULTRA_USR "$ULTRA_USR"
+  _saveaccountconf_mutable ULTRA_PWD "$ULTRA_PWD"
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "${_domain_id}"
+  _debug _sub_domain "${_sub_domain}"
+  _debug _domain "${_domain}"
+  _debug "Getting txt records"
+  _ultra_rest GET "zones/${_domain_id}/rrsets/TXT?q=value:${fulldomain}"
+  if printf "%s" "$response" | grep \"totalCount\" >/dev/null; then
+    _err "Error, it would appear that this record already exists. Please review existing TXT records for this domain."
+    return 1
+  fi
+
+  _info "Adding record"
+  if _ultra_rest POST "zones/$_domain_id/rrsets/TXT/${_sub_domain}" '{"ttl":300,"rdata":["'"${txtvalue}"'"]}'; then
+    if _contains "$response" "Successful"; then
+      _info "Added, OK"
+      return 0
+    elif _contains "$response" "Resource Record of type 16 with these attributes already exists"; then
+      _info "Already exists, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+
+}
+
+dns_ultra_rm() {
+  fulldomain=$1
+  txtvalue=$2
+  export txtvalue
+  ULTRA_USR="${ULTRA_USR:-$(_readaccountconf_mutable ULTRA_USR)}"
+  ULTRA_PWD="${ULTRA_PWD:-$(_readaccountconf_mutable ULTRA_PWD)}"
+  if [ -z "$ULTRA_USR" ] || [ -z "$ULTRA_PWD" ]; then
+    ULTRA_USR=""
+    ULTRA_PWD=""
+    _err "You didn't specify an UltraDNS username and password yet"
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "${_domain_id}"
+  _debug _sub_domain "${_sub_domain}"
+  _debug _domain "${domain}"
+
+  _debug "Getting TXT records"
+  _ultra_rest GET "zones/${_domain_id}/rrsets?q=kind:RECORDS+owner:${_sub_domain}"
+
+  if ! printf "%s" "$response" | grep \"resultInfo\" >/dev/null; then
+    _err "There was an error in obtaining the resource records for ${_domain_id}"
+    return 1
+  fi
+
+  count=$(echo "$response" | _egrep_o "\"returnedCount\":[^,]*" | cut -d: -f2 | cut -d'}' -f1)
+  _debug count "${count}"
+  if [ "${count}" = "" ]; then
+    _info "Text record is not present, will not delete anything."
+  else
+    if ! _ultra_rest DELETE "zones/$_domain_id/rrsets/TXT/${_sub_domain}" '{"ttl":300,"rdata":["'"${txtvalue}"'"]}'; then
+      _err "Deleting the record did not succeed, please verify/check."
+      return 1
+    fi
+    _contains "$response" ""
+  fi
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    _debug response "$response"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+    if ! _ultra_rest GET "zones"; then
+      return 1
+    fi
+    if _contains "${response}" "${h}." >/dev/null; then
+      _domain_id=$(echo "$response" | _egrep_o "${h}")
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain="${h}"
+        _debug sub_domain "${_sub_domain}"
+        _debug domain "${_domain}"
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_ultra_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+  _debug TOKEN "${AUTH_TOKEN}"
+
+  _ultra_login
+  export _H1="Content-Type: application/json"
+  export _H2="Authorization: Bearer ${AUTH_TOKEN}"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "${data}"
+    response="$(_post "${data}" "${ULTRA_API}"/"${ep}" "" "${m}")"
+  else
+    response="$(_get "$ULTRA_API/$ep")"
+  fi
+}
+
+_ultra_login() {
+  export _H1=""
+  export _H2=""
+  AUTH_TOKEN=$(_post "grant_type=password&username=${ULTRA_USR}&password=${ULTRA_PWD}" "${ULTRA_API}authorization/token" | cut -d, -f3 | cut -d\" -f4)
+  export AUTH_TOKEN
+}
diff --git a/dnsapi/dns_zone.sh b/dnsapi/dns_zone.sh
new file mode 100755
index 00000000..847e32cd
--- /dev/null
+++ b/dnsapi/dns_zone.sh
@@ -0,0 +1,149 @@
+#!/usr/bin/env sh
+
+# Zone.ee dns API
+# https://help.zone.eu/kb/zoneid-api-v2/
+# required ZONE_Username and ZONE_Key
+
+ZONE_Api="https://api.zone.eu/v2"
+########  Public functions #####################
+
+#Usage: dns_zone_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_zone_add() {
+  fulldomain=$1
+  txtvalue=$2
+  _info "Using zone.ee dns api"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+  ZONE_Username="${ZONE_Username:-$(_readaccountconf_mutable ZONE_Username)}"
+  ZONE_Key="${ZONE_Key:-$(_readaccountconf_mutable ZONE_Key)}"
+  if [ -z "$ZONE_Username" ] || [ -z "$ZONE_Key" ]; then
+    ZONE_Username=""
+    ZONE_Key=""
+    _err "Zone api key and username must be present."
+    return 1
+  fi
+  _saveaccountconf_mutable ZONE_Username "$ZONE_Username"
+  _saveaccountconf_mutable ZONE_Key "$ZONE_Key"
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug "Adding txt record"
+
+  if _zone_rest POST "dns/${_domain}/txt" "{\"name\": \"$fulldomain\", \"destination\": \"$txtvalue\"}"; then
+    if printf -- "%s" "$response" | grep "$fulldomain" >/dev/null; then
+      _info "Added, OK"
+      return 0
+    else
+      _err "Adding txt record error."
+      return 1
+    fi
+  else
+    _err "Adding txt record error."
+  fi
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_zone_rm() {
+  fulldomain=$1
+  txtvalue=$2
+  _info "Using zone.ee dns api"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+  ZONE_Username="${ZONE_Username:-$(_readaccountconf_mutable ZONE_Username)}"
+  ZONE_Key="${ZONE_Key:-$(_readaccountconf_mutable ZONE_Key)}"
+  if [ -z "$ZONE_Username" ] || [ -z "$ZONE_Key" ]; then
+    ZONE_Username=""
+    ZONE_Key=""
+    _err "Zone api key and username must be present."
+    return 1
+  fi
+  _saveaccountconf_mutable ZONE_Username "$ZONE_Username"
+  _saveaccountconf_mutable ZONE_Key "$ZONE_Key"
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug "Getting txt records"
+  _debug _domain "$_domain"
+
+  _zone_rest GET "dns/${_domain}/txt"
+
+  if printf "%s" "$response" | grep \"error\" >/dev/null; then
+    _err "Error"
+    return 1
+  fi
+
+  count=$(printf "%s\n" "$response" | _egrep_o "\"name\":\"$fulldomain\"" | wc -l)
+  _debug count "$count"
+  if [ "$count" = "0" ]; then
+    _info "Nothing to remove."
+  else
+    record_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":\"[^\"]*\",\"resource_url\":\"[^\"]*\",\"name\":\"$fulldomain\"," | cut -d : -f2 | cut -d , -f1 | tr -d \" | _head_n 1)
+    if [ -z "$record_id" ]; then
+      _err "No id found to remove."
+      return 1
+    fi
+    if ! _zone_rest DELETE "dns/${_domain}/txt/$record_id"; then
+      _err "Record deleting error."
+      return 1
+    fi
+    _info "Record deleted"
+    return 0
+  fi
+
+}
+
+####################  Private functions below ##################################
+
+_zone_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  realm="$(printf "%s" "$ZONE_Username:$ZONE_Key" | _base64)"
+
+  export _H1="Authorization: Basic $realm"
+  export _H2="Content-Type: application/json"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$ZONE_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$ZONE_Api/$ep")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
+
+_get_root() {
+  domain=$1
+  i=2
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      return 1
+    fi
+    if ! _zone_rest GET "dns/$h/a"; then
+      return 1
+    fi
+    if _contains "$response" "\"name\":\"$h\"" >/dev/null; then
+      _domain=$h
+      return 0
+    fi
+    i=$(_math "$i" + 1)
+  done
+  return 0
+}