diff --git a/dnsapi/dns-cf.sh b/dnsapi/dns-cf.sh
new file mode 100644
index 00000000..40987a21
--- /dev/null
+++ b/dnsapi/dns-cf.sh
@@ -0,0 +1,139 @@
+#!/bin/bash
+
+
+#
+#CF_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
+#
+#CF_Email="xxxx@sss.com"
+
+
+CF_Api="https://api.cloudflare.com/client/v4/"
+
+#Usage:  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns-cf-add() {
+  fulldomain=$1
+  txtvalue=$2
+  
+  _info "first detect the root zone"
+  if ! _get_root $fulldomain > /dev/null ; then
+    _err "invalid domain"
+    return 1
+  fi
+  
+  _cf_rest GET "/zones/$_domain_id/dns_records?type=TXT&name=$fulldomain"
+  
+  if [ "$?" != "0" ] || ! printf $response | grep \"success\":true > /dev/null ; then
+    _err "Error"
+    return 1
+  fi
+  
+  count=$(printf $response | grep -o \"count\":[^,]* | cut -d : -f 2)
+  
+  if [ "$count" == "0" ] ; then
+    _info "Adding record"
+    if _cf_rest GET "/zones/$_domain_id/dns_records?type=TXT&name=$fulldomain&content=$txtvalue" ; then
+      _info "Added, sleeping 10 seconds"
+      sleep 10
+      return 0
+    fi
+    _err "Add txt record error."
+  else
+    _info "Updating record"
+    record_id=$(printf $response | grep -o \"id\":\"[^\"]*\" | cut -d : -f 2 | tr -d \")
+    _info "record_id" $record_id
+    
+    _cf_rest PUT "/zones/$_domain_id/dns_records/$record_id"  "{\"id\":\"$record_id\",\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"zone_id\":\"$_domain_id\",\"zone_name\":\"$_domain\"}"
+    if [ "$?" == "0" ]; then
+      _info "Updated, sleeping 10 seconds"
+      sleep 10
+      return 0;
+    fi
+    _err "Update error"
+    return 1
+  fi
+  
+}
+
+
+#_acme-challenge.www.domain.com
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while [ '1' ] ; do
+    h=$(printf $domain | cut -d . -f $i-100)
+    if [ -z "$h" ] ; then
+      #not valid
+      return 1;
+    fi
+    
+    if ! _cf_get "zones?name=$h" ; then
+      return 1
+    fi
+    
+    if printf $response | grep \"name\":\"$h\" ; then
+      _domain_id=$(printf $response | grep -o \"id\":\"[^\"]*\" | cut -d : -f 2 | tr -d \")
+      if [ "$_domain_id" ] ; then
+        _sub_domain=$(printf $domain | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    let "i+=1"
+  done
+  return 1
+}
+
+
+_cf_rest() {
+  m=$1
+  ep="$2"
+  echo $ep
+  if [ "$3" ] ; then
+    data="--data \"$3\""
+  fi
+  response="$(curl --silent -X $m "$CF_Api/$ep" -H "X-Auth-Email: $CF_Email" -H "X-Auth-Key: $CF_Key" -H "Content-Type: application/json" $data)"
+  if [ "$?" != "0" ] ; then
+    echo $error $ep
+    return 1
+  fi
+  echo $response
+  return 0
+}
+
+
+_debug() {
+
+  if [ -z "$DEBUG" ] ; then
+    return
+  fi
+  
+  if [ -z "$2" ] ; then
+    echo $1
+  else
+    echo "$1"="$2"
+  fi
+}
+
+_info() {
+  if [ -z "$2" ] ; then
+    echo "$1"
+  else
+    echo "$1"="$2"
+  fi
+}
+
+_err() {
+  if [ -z "$2" ] ; then
+    echo "$1" >&2
+  else
+    echo "$1"="$2" >&2
+  fi
+}
+
+
diff --git a/le.sh b/le.sh
index f90ebe3e..8e70b04f 100755
--- a/le.sh
+++ b/le.sh
@@ -320,7 +320,6 @@ _initpath() {
   if [ -z "$CA_CERT_PATH" ] ; then
     CA_CERT_PATH="$WORKING_DIR/$domain/ca.cer"
   fi
-
   
 }
 
@@ -619,12 +618,44 @@ issue() {
         _debug txt "$txt"
         #dns
         #1. check use api
-        _err "Add the following TXT record:"
-        _err "Domain: $txtdomain"
-        _err "TXT value: $txt"
-        _err "Please be aware that you prepend _acme-challenge. before your domain"
-        _err "so the resulting subdomain will be: $txtdomain"
-        #dnsadded='1'
+        d_api=""
+        if [ -f "$WORKING_DIR/$d/$Le_Webroot" ] ; then
+          d_api="$WORKING_DIR/$d/$Le_Webroot"
+        elif [ -f "$WORKING_DIR/$d/$Le_Webroot.sh" ] ; then
+          d_api="$WORKING_DIR/$d/$Le_Webroot.sh"
+        elif [ -f "$WORKING_DIR/$Le_Webroot" ] ; then
+          d_api="$WORKING_DIR/$Le_Webroot"
+        elif [ -f "$WORKING_DIR/$Le_Webroot.sh" ] ; then
+          d_api="$WORKING_DIR/$Le_Webroot.sh"
+        fi
+        
+        if [ "$d_api" ]; then
+          _info "Found domain api file: $d_api"
+        else
+          _err "Add the following TXT record:"
+          _err "Domain: $txtdomain"
+          _err "TXT value: $txt"
+          _err "Please be aware that you prepend _acme-challenge. before your domain"
+          _err "so the resulting subdomain will be: $txtdomain"
+          continue
+        fi
+
+        if ! source $d_api ; then
+          _err "Load file $d_api error. Please check your api file and try again."
+          return 1
+        fi
+        
+        addcommand="$Le_Webroot-add"
+        if ! command -v $addcommand ; then 
+          _err "It seems that your api file is not correct, it must have a function named: $Le_Webroot"
+          return 1
+        fi
+        
+        if ! $addcommand $txtdomain $txt ; then
+          _err "Error add txt for domain:$txtdomain"
+          return 1
+        fi
+        dnsadded='1'
       fi
     done
 
@@ -806,13 +837,17 @@ renew() {
 
   _initpath $Le_Domain
 
-  if [ -f "$DOMAIN_CONF" ] ; then
-    source "$DOMAIN_CONF"
-    if [ -z "$FORCE" ] && [ "$Le_NextRenewTime" ] && [ "$(date -u "+%s" )" -lt "$Le_NextRenewTime" ] ; then 
-      _info "Skip, Next renewal time is: $Le_NextRenewTimeStr"
-      return 2
-    fi
+  if [ ! -f "$DOMAIN_CONF" ] ; then
+    _err "$Le_Domain is not a issued domain, skip."
+    return 1;
   fi
+  
+  source "$DOMAIN_CONF"
+  if [ -z "$FORCE" ] && [ "$Le_NextRenewTime" ] && [ "$(date -u "+%s" )" -lt "$Le_NextRenewTime" ] ; then 
+    _info "Skip, Next renewal time is: $Le_NextRenewTimeStr"
+    return 2
+  fi
+  
   IS_RENEW="1"
   issue "$Le_Webroot" "$Le_Domain" "$Le_Alt" "$Le_Keylength" "$Le_RealCertPath" "$Le_RealKeyPath" "$Le_RealCACertPath" "$Le_ReloadCmd"
   IS_RENEW=""