diff --git a/pages/_document.tsx b/pages/_document.tsx
index 6959cb82d..dbddc699d 100644
--- a/pages/_document.tsx
+++ b/pages/_document.tsx
@@ -7,6 +7,8 @@ import Document, {
   NextScript,
 } from "next/document";
 
+const GA_TRACKING_ID = "UA-163861331-1";
+
 class MyDocument extends Document {
   static async getInitialProps(ctx: DocumentContext) {
     const initialProps = await Document.getInitialProps(ctx);
@@ -17,7 +19,25 @@ class MyDocument extends Document {
   render() {
     return (
       <Html>
-        <Head />
+        <Head>
+          {/* Global Site Tag (gtag.js) - Google Analytics */}
+          <script
+            async
+            src={`https://www.googletagmanager.com/gtag/js?id=${GA_TRACKING_ID}`}
+          />
+          <script
+            dangerouslySetInnerHTML={{
+              __html: `
+            window.dataLayer = window.dataLayer || [];
+            function gtag(){dataLayer.push(arguments);}
+            gtag('js', new Date());
+            gtag('config', '${GA_TRACKING_ID}', {
+              page_path: window.location.pathname,
+            });
+          `,
+            }}
+          />
+        </Head>
         <body>
           <ColorModeScript />
           <Main />
