diff --git a/.refsrc.json b/.refsrc.json
index 7dec7762..663e94cd 100644
--- a/.refsrc.json
+++ b/.refsrc.json
@@ -24,6 +24,7 @@
     { "rel": "apple-touch-icon", "sizes": "167x167", "href": "{{RELATIVE_PATH}}icons/touch-icon-ipad-retina.png" },
     { "rel": "apple-touch-icon", "sizes": "120x120", "href": "{{RELATIVE_PATH}}icons/touch-icon-iphone-retina.png" }
   ],
+  "analyticsId": "G-9MWEWXSDQK",
   "giscus": {
     "src": "https://giscus.app/client.js",
     "data-repo": "jaywcjlove/reference",
diff --git a/README.md b/README.md
index 4957cece..835ba51e 100644
--- a/README.md
+++ b/README.md
@@ -686,3 +686,12 @@ $ open dist/index.html # 在浏览器打开生成 HTML
 
 MIT © [Kenny Wong](https://github.com/jaywcjlove)
 <!--rehype:ignore:end-->
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-9MWEWXSDQK"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-9MWEWXSDQK');
+</script>
\ No newline at end of file
diff --git a/package.json b/package.json
index 429b07e9..3780c3d0 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "markdownlint": "^0.33.0",
     "markdownlint-cli": "^0.39.0",
     "prettier": "^3.0.0",
-    "refs-cli": "^1.8.0"
+    "refs-cli": "^1.9.0"
   },
   "engines": {
     "node": ">=16.0.0"