From 6907ff1098b50e6a14308851a1f519dbecef4d2f Mon Sep 17 00:00:00 2001
From: Kresna <13603341+slaveofcode@users.noreply.github.com>
Date: Tue, 11 Aug 2026 11:58:45 +0700
Subject: [PATCH] feat(analytics): add Google Ads conversion tag
 (AW-18373579775)

Fires immediately on production hostnames only (same GA_ALLOWED_HOSTS
guard as the GA4 tag) so staging, forks, previews and localhost never
pollute the Ads account. Reuses the shared window.gtag/dataLayer queue.
---
 src/layouts/Base.astro | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/layouts/Base.astro b/src/layouts/Base.astro
index 5eb5789..7e38389 100644
--- a/src/layouts/Base.astro
+++ b/src/layouts/Base.astro
@@ -157,6 +157,22 @@ const jsonLdBlocks = [siteJsonLd, ...(Array.isArray(jsonLd) ? jsonLd : jsonLd ?
       document.addEventListener('astro:page-load', revealEmails);
     </script>
 
+    <!-- Google Ads tag: fires immediately on production hostnames only. -->
+    <script is:inline define:vars={{ gaHosts: GA_ALLOWED_HOSTS }}>
+      if (gaHosts.indexOf(location.hostname) !== -1) {
+        (function () {
+          var s = document.createElement('script');
+          s.async = true;
+          s.src = 'https://www.googletagmanager.com/gtag/js?id=AW-18373579775';
+          document.head.appendChild(s);
+          window.dataLayer = window.dataLayer || [];
+          window.gtag = window.gtag || function () { window.dataLayer.push(arguments); };
+          window.gtag('js', new Date());
+          window.gtag('config', 'AW-18373579775');
+        })();
+      }
+    </script>
+
     <!-- Google Analytics (GDPR): loads only when configured AND consent granted. -->
     <script is:inline define:vars={{ gaId: GA_ID, gaHosts: GA_ALLOWED_HOSTS }}>
       (function () {