diff --git a/index.html b/index.html
index 2e7d909..93812ff 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,20 @@
     <meta charset="UTF-8"/>
     <link rel="icon" type="image/svg+xml" href="/favicon.svg"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-    <title>论文工具</title>
+    <title>拷贝鸭官网</title>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-P7SH7GHFBW"></script>
+    <script>
+        window.dataLayer = window.dataLayer || [];
+
+        function gtag() {
+            dataLayer.push(arguments);
+        }
+
+        gtag("js", new Date());
+
+        gtag("config", "G-P7SH7GHFBW");
+    </script>
 </head>
 <body>
 <noscript>
diff --git a/src/pages/components/CopyrightFooter.vue b/src/pages/components/CopyrightFooter.vue
index a7cfc57..b76d90c 100644
--- a/src/pages/components/CopyrightFooter.vue
+++ b/src/pages/components/CopyrightFooter.vue
@@ -170,6 +170,14 @@ function goTo(url: string) {
             <span v-if="!!version && !!license">丨</span>
             <span v-if="license">Released under {{ license }}</span></div>
           <div v-if="author">Copyright © {{ year }} {{ author }}</div>
+          <div>
+            <a
+                href="https://beian.miit.gov.cn"
+                target="_blank"
+                class="whitespace-nowrap"
+            >蜀ICP备2021026507号-5</a
+            >
+          </div>
         </n-space>
       </n-space>
     </div>
