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fix(analytics): load GA4 tag only on production hosts #24

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Merged
rdlabo merged 1 commit into from
Sep 4, 2026
Merged

fix(analytics): load GA4 tag only on production hosts #24

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4 changes: 4 additions & 0 deletions marketing/analytics-access.md
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,10 @@ one-time setup.

## GA4 events

Both apps load `gtag.js` only when the page hostname is `rdlabo.dev` or one of its subdomains.
Local development (`localhost`, `127.0.0.1`) and preview hosts define the `gtag` stub but never
load the tag, so their page views and clicks do not reach the property.

The site emits these events from article pages:

| Event | Meaning |
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13 changes: 9 additions & 4 deletions projects/docs/src/index.html
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Expand Up @@ -12,15 +12,20 @@
<meta name="theme-color" content="#fffaf7" />
<link rel="icon" type="image/svg+xml" href="/assets/brand/rdlabo-logo.svg" />
<link rel="apple-touch-icon" href="/assets/brand/apple-touch-icon.png" />
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-EXVGMHNGJG"></script>
<!-- Google tag (gtag.js): loaded only on production hosts -->
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag('js', new Date());
gtag('config', 'G-EXVGMHNGJG', { send_page_view: false });
if (/(^|\.)rdlabo\.dev$/.test(window.location.hostname)) {
var gtagScript = document.createElement('script');
gtagScript.async = true;
gtagScript.src = 'https://www.googletagmanager.com/gtag/js?id=G-EXVGMHNGJG';
document.head.appendChild(gtagScript);
gtag('js', new Date());
gtag('config', 'G-EXVGMHNGJG', { send_page_view: false });
}
</script>
</head>
<body>
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13 changes: 9 additions & 4 deletions projects/web-site/src/index.html
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Expand Up @@ -18,15 +18,20 @@
<link rel="icon" type="image/png" href="/assets/brand/apple-touch-icon.png" />
<link rel="icon" type="image/svg+xml" href="/assets/brand/rdlabo-logo.svg" />
<link rel="apple-touch-icon" href="/assets/brand/apple-touch-icon.png" />
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-EXVGMHNGJG"></script>
<!-- Google tag (gtag.js): loaded only on production hosts -->
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag('js', new Date());
gtag('config', 'G-EXVGMHNGJG', { send_page_view: false });
if (/(^|\.)rdlabo\.dev$/.test(window.location.hostname)) {
var gtagScript = document.createElement('script');
gtagScript.async = true;
gtagScript.src = 'https://www.googletagmanager.com/gtag/js?id=G-EXVGMHNGJG';
document.head.appendChild(gtagScript);
gtag('js', new Date());
gtag('config', 'G-EXVGMHNGJG', { send_page_view: false });
}
</script>
</head>
<body>
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