index.html

<!DOCTYPE html>
<html>

<head>
  <title>Gtag Test</title>
</head>

<body>
  <!-- Google tag (gtag.js) -->
  <script async src="https://www.googletagmanager.com/gtag/js?id=G-JC65XGQ5NY"></script>
  <script>
    window.dataLayer = window.dataLayer || [];
    function gtag() { dataLayer.push(arguments); }
    gtag('consent', 'default', {
      ad_user_data: 'denied',
      ad_personalization: 'denied',
      ad_storage: 'denied',
      analytics_storage: 'denied',
      wait_for_update: 500,
    });
    gtag('consent', 'update', {
      ad_user_data: 'granted',
      ad_personalization: 'granted',
      ad_storage: 'granted',
      analytics_storage: 'granted'
    });
    gtag('js', new Date());
  </script>
  <h1>Welcome to My Website</h1>
  <p>This is the homepage of my website.</p>
  <p>andrew.olsson@tank.com</p>
</body>

</html>