diff --git a/src/main/java/com/lovenav/utils/UrlCheckUtil.java b/src/main/java/com/lovenav/utils/UrlCheckUtil.java
index f7b61c7..b0f8635 100644
--- a/src/main/java/com/lovenav/utils/UrlCheckUtil.java
+++ b/src/main/java/com/lovenav/utils/UrlCheckUtil.java
@@ -1,5 +1,7 @@
 package com.lovenav.utils;
 import java.io.BufferedReader;
+
+import com.alibaba.fastjson2.JSON;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -102,7 +104,7 @@ public class UrlCheckUtil {
         }
     }
 
-    public static void url_speed(String url) {
+    public static String url_speed(String url) {
         String url_check = url;
         int numRequests = 10;
         long totalResponseTime = 0;
@@ -119,6 +121,6 @@ public class UrlCheckUtil {
             }
         }
         double averageResponseTime = (double) totalResponseTime / (1 * numRequests);
-        System.out.println("Average response time: " + averageResponseTime + " ms");
+        return JSON.toJSONString(averageResponseTime + " ms");
     }
 }