diff --git a/index.html b/index.html
index b0f17c4..1b01506 100644
--- a/index.html
+++ b/index.html
@@ -1,6 +1,15 @@
 <!DOCTYPE html>
 <html lang="en">
   <head>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-2JKY37CY96"></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag('js', new Date());
+
+      gtag('config', 'G-2JKY37CY96');
+    </script>
     <title>SANDTRIS</title>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.6.0/p5.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.6.0/addons/p5.sound.min.js"></script>
