diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4aae361..c521bb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 ### Added
+- Google Tag Manager installed
 - Support `X`
 - Support `WhatsApp`
 - Support multi parameters
diff --git a/public/index.html b/public/index.html
index cd8a312..3f9ae42 100644
--- a/public/index.html
+++ b/public/index.html
@@ -1,6 +1,13 @@
 <!DOCTYPE html>
 <html lang="en">
 	<head>
+		<!-- Google Tag Manager -->
+		<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+		new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+		j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+		'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+		})(window,document,'script','dataLayer','GTM-5LHKDJ9L');</script>
+		<!-- End Google Tag Manager -->
 		<meta charset="utf-8" />
 		<meta http-equiv="expires" content="0" />
 		<meta name="theme-color" content="#2D2D2D" />
@@ -49,6 +56,10 @@
 	</script>
 	<body>
 		<noscript>You need to enable JavaScript to run this app.</noscript>
+		<!-- Google Tag Manager (noscript) -->
+		<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5LHKDJ9L"
+		height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+		<!-- End Google Tag Manager (noscript) -->
 		<div id="root"></div>
 	</body>
 	<script>
