diff --git a/base/head.tmpl b/base/head.tmpl
index 174267f..4822560 100644
--- a/base/head.tmpl
+++ b/base/head.tmpl
@@ -29,6 +29,17 @@
 	{{template "base/head_style" .}}
 	{{template "custom/header" .}}
 </head>
+
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-S2K7CN272D"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-S2K7CN272D');
+</script>
+
 <body hx-headers='{"x-csrf-token": "{{.CsrfToken}}"}' hx-swap="outerHTML" hx-ext="morph" hx-push-url="false">
 	{{template "custom/body_outer_pre" .}}
 
