diff --git a/_layouts/default.html b/_layouts/default.html
index 659736b..73823df 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -5,7 +5,17 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>{% if page.title %}{{ page.title }} | {{ site.title }}{% else %}{{ site.title }} - {{ site.subtitle }}{% endif %}</title>
   <meta name="description" content="{{ page.description | default: site.description }}">
-  
+
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-XMJWQZ8FWP"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+
+    gtag('config', 'G-XMJWQZ8FWP');
+  </script>
+
   <!-- Tailwind CSS via CDN -->
   <script src="https://cdn.tailwindcss.com"></script>
   <script>