diff --git a/frontend/src/app/layout.js b/frontend/src/app/layout.js
index e4af64e..351d17c 100644
--- a/frontend/src/app/layout.js
+++ b/frontend/src/app/layout.js
@@ -22,6 +22,20 @@ export default function RootLayout(props) {
   const { children } = props;
   return (
     <html lang="en">
+      <head>
+        {/* Google tag (gtag.js) */}
+        <script async src="https://www.googletagmanager.com/gtag/js?id=G-J2ZCP6CT0E" />
+        <script
+          dangerouslySetInnerHTML={{
+            __html: `
+              window.dataLayer = window.dataLayer || [];
+              function gtag(){dataLayer.push(arguments);}
+              gtag('js', new Date());
+              gtag('config', 'G-J2ZCP6CT0E');
+            `
+          }}
+        />
+      </head>
       <body className={roboto.variable}>
         <AppRouterCacheProvider options={{ enableCssLayer: true }}>
           <ThemeProvider theme={theme}>
diff --git a/mydb/frontend/src/app/layout.js b/mydb/frontend/src/app/layout.js
index 73d2f3f..b1a2421 100644
--- a/mydb/frontend/src/app/layout.js
+++ b/mydb/frontend/src/app/layout.js
@@ -21,6 +21,20 @@ export const metadata = {
 export default function RootLayout({ children }) {
   return (
     <html lang="en" className={roboto.variable}>
+      <head>
+        {/* Google tag (gtag.js) */}
+        <script async src="https://www.googletagmanager.com/gtag/js?id=G-J2ZCP6CT0E" />
+        <script
+          dangerouslySetInnerHTML={{
+            __html: `
+              window.dataLayer = window.dataLayer || [];
+              function gtag(){dataLayer.push(arguments);}
+              gtag('js', new Date());
+              gtag('config', 'G-J2ZCP6CT0E');
+            `
+          }}
+        />
+      </head>
       <body>
         <AppRouterCacheProvider>
           <ThemeProvider theme={theme}>
