diff --git a/public/index.html b/public/index.html
index 7f88c87d..91e066e6 100644
--- a/public/index.html
+++ b/public/index.html
@@ -14,6 +14,7 @@
     <link rel="apple-touch-icon" href="https://static.koreatech.in/assets/favicons/favicon-32x32.png" />
     <link rel="shortcut icon" href="https://static.koreatech.in/assets/favicons/favicon-32x32.png">
     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-B9VPQ37GNT"></script>
     <!--
       Notice the use of %PUBLIC_URL% in the tags above.
       It will be replaced with the URL of the `public` folder during the build.