diff --git a/core/src/main/java/com/alibaba/nacos/core/utils/WebUtils.java b/core/src/main/java/com/alibaba/nacos/core/utils/WebUtils.java
index 4f5d2d2b6b8..5fd037340c0 100644
--- a/core/src/main/java/com/alibaba/nacos/core/utils/WebUtils.java
+++ b/core/src/main/java/com/alibaba/nacos/core/utils/WebUtils.java
@@ -15,6 +15,7 @@
  */
 package com.alibaba.nacos.core.utils;
 
+import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import org.apache.commons.lang3.StringUtils;
 
 import javax.servlet.http.HttpServletRequest;
@@ -71,4 +72,20 @@ public static String getAcceptEncoding(HttpServletRequest req) {
         encode = encode.contains(",") ? encode.substring(0, encode.indexOf(",")) : encode;
         return encode.contains(";") ? encode.substring(0, encode.indexOf(";")) : encode;
     }
+
+    /**
+     * Returns the value of the request header "user-agent" as a <code>String</code>.
+     *
+     * @param request HttpServletRequest
+     * @return the value of the request header "user-agent", or the value of the
+     *         request header "client-version" if the request does not have a
+     *         header of "user-agent"
+     */
+    public static String getUserAgent(HttpServletRequest request) {
+        String userAgent = request.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        if (StringUtils.isEmpty(userAgent)) {
+            userAgent = StringUtils.defaultIfEmpty(request.getHeader(HttpHeaderConsts.CLIENT_VERSION_HEADER), StringUtils.EMPTY);
+        }
+        return userAgent;
+    }
 }
diff --git a/naming/src/main/java/com/alibaba/nacos/naming/acl/AuthChecker.java b/naming/src/main/java/com/alibaba/nacos/naming/acl/AuthChecker.java
index 9e075162903..aa863732b98 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/acl/AuthChecker.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/acl/AuthChecker.java
@@ -17,7 +17,6 @@
 
 import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.api.naming.CommonParams;
-import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import com.alibaba.nacos.core.utils.WebUtils;
 import com.alibaba.nacos.naming.core.Service;
 import com.alibaba.nacos.naming.core.ServiceManager;
@@ -53,7 +52,7 @@ public void doRaftAuth(HttpServletRequest req) throws Exception {
             return;
         }
 
-        String agent = req.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(req);
         if (StringUtils.startsWith(agent, UtilsAndCommons.NACOS_SERVER_HEADER)) {
             return;
         }
diff --git a/naming/src/main/java/com/alibaba/nacos/naming/controllers/ApiController.java b/naming/src/main/java/com/alibaba/nacos/naming/controllers/ApiController.java
index 30c5fb1e195..98ea7724f17 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/controllers/ApiController.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/controllers/ApiController.java
@@ -19,7 +19,6 @@
 import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.api.naming.CommonParams;
 import com.alibaba.nacos.api.naming.utils.NamingUtils;
-import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import com.alibaba.nacos.core.utils.WebUtils;
 import com.alibaba.nacos.naming.core.DistroMapper;
 import com.alibaba.nacos.naming.core.ServiceManager;
@@ -62,7 +61,7 @@ public JSONObject allDomNames(HttpServletRequest request) throws Exception {
         JSONObject result = new JSONObject();
         // For old DNS-F client:
         String dnsfVersion = "1.0.1";
-        String agent = request.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(request);
         ClientInfo clientInfo = new ClientInfo(agent);
         if (clientInfo.type == ClientInfo.ClientType.DNS &&
             clientInfo.version.compareTo(VersionUtil.parseVersion(dnsfVersion)) <= 0) {
@@ -123,7 +122,7 @@ public JSONObject srvIPXT(HttpServletRequest request) throws Exception {
             Constants.DEFAULT_NAMESPACE_ID);
 
         String dom = WebUtils.required(request, "dom");
-        String agent = request.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(request);
         String clusters = WebUtils.optional(request, "clusters", StringUtils.EMPTY);
         String clientIP = WebUtils.optional(request, "clientIP", StringUtils.EMPTY);
         Integer udpPort = Integer.parseInt(WebUtils.optional(request, "udpPort", "0"));
diff --git a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
index e6746b28d9a..f3f1ebb2188 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
@@ -21,7 +21,6 @@
 import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.api.naming.CommonParams;
 import com.alibaba.nacos.api.naming.utils.NamingUtils;
-import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import com.alibaba.nacos.core.utils.WebUtils;
 import com.alibaba.nacos.naming.core.DistroMapper;
 import com.alibaba.nacos.naming.core.Instance;
@@ -127,7 +126,7 @@ public String update(HttpServletRequest request) throws Exception {
         String serviceName = WebUtils.required(request, CommonParams.SERVICE_NAME);
         String namespaceId = WebUtils.optional(request, CommonParams.NAMESPACE_ID, Constants.DEFAULT_NAMESPACE_ID);
 
-        String agent = request.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(request);
 
         ClientInfo clientInfo = new ClientInfo(agent);
 
@@ -147,7 +146,7 @@ public JSONObject list(HttpServletRequest request) throws Exception {
             Constants.DEFAULT_NAMESPACE_ID);
 
         String serviceName = WebUtils.required(request, CommonParams.SERVICE_NAME);
-        String agent = request.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(request);
         String clusters = WebUtils.optional(request, "clusters", StringUtils.EMPTY);
         String clientIP = WebUtils.optional(request, "clientIP", StringUtils.EMPTY);
         Integer udpPort = Integer.parseInt(WebUtils.optional(request, "udpPort", "0"));
diff --git a/naming/src/main/java/com/alibaba/nacos/naming/web/TrafficReviseFilter.java b/naming/src/main/java/com/alibaba/nacos/naming/web/TrafficReviseFilter.java
index 59f8c65f722..9240dbf0d1a 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/web/TrafficReviseFilter.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/web/TrafficReviseFilter.java
@@ -15,8 +15,8 @@
  */
 package com.alibaba.nacos.naming.web;
 
-import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import com.alibaba.nacos.common.util.HttpMethod;
+import com.alibaba.nacos.core.utils.WebUtils;
 import com.alibaba.nacos.naming.cluster.ServerStatus;
 import com.alibaba.nacos.naming.cluster.ServerStatusManager;
 import com.alibaba.nacos.naming.misc.SwitchDomain;
@@ -71,7 +71,7 @@ public void doFilter(ServletRequest request, ServletResponse response, FilterCha
         }
 
         // requests from peer server should be let pass:
-        String agent = req.getHeader(HttpHeaderConsts.USER_AGENT_HEADER);
+        String agent = WebUtils.getUserAgent(req);
 
         if (StringUtils.startsWith(agent, UtilsAndCommons.NACOS_SERVER_HEADER)) {
             filterChain.doFilter(req, resp);