diff --git a/src/layouts/Layout.astro b/src/layouts/Layout.astro
index af46e2c54..8536eda02 100644
--- a/src/layouts/Layout.astro
+++ b/src/layouts/Layout.astro
@@ -71,6 +71,8 @@ const bannerOffsetByPosition = {
 }
 const bannerOffset =
   bannerOffsetByPosition[siteConfig.banner.position || 'center']
+
+const gtagId = siteConfig.googleAnalytics? siteConfig.googleAnalytics.id : ''
 ---
 
 <!DOCTYPE html>
@@ -78,6 +80,16 @@ const bannerOffset =
 	  data-overlayscrollbars-initialize
 >
 	<head>
+		{gtagId.length > 0 &&
+			<!-- Google tag (gtag.js) -->
+			<script async src={`https://www.googletagmanager.com/gtag/js?id=${gtagId}`}></script>
+			<script is:inline define:vars={{gtagId}}>
+			  window.dataLayer = window.dataLayer || [];
+			  function gtag(){dataLayer.push(arguments);}
+			  gtag('js', new Date());
+	
+			  gtag('config', gtagId);
+			</script>}
 
 		<title>{pageTitle}</title>
 
diff --git a/src/types/config.ts b/src/types/config.ts
index 67e5f2596..adb8f8f0d 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -24,6 +24,9 @@ export type SiteConfig = {
     enable: boolean
     depth: 1 | 2 | 3
   }
+  googleAnalytics?: {
+    id: string
+  }
 
   favicon: Favicon[]
 }
