In the world of monetization and SEO, **"what you can't measure, you can't improve"** is the golden rule. Installing Google Analytics 4 (GA4) is not optional—it’s an **essential step** for tracking user behavior, understanding traffic sources, and proving site authority to Google.

This comprehensive guide will walk you through finding your GA4 Measurement ID and correctly implementing the tracking code into your Blogger theme's HTML, ensuring your data collection is flawless.

Screenshot of Google Analytics 4 Admin Section showing Measurement ID

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Step 1: Get Your GA4 Measurement ID

  1. Log into your Google Analytics account.
  2. Navigate to the **Admin (관리)** section (the gear icon ⚙️).
  3. Under the **Property** column, click **Data Streams (데이터 스트림)**.
  4. Select the Web stream for your blog.
  5. Copy the **Measurement ID** (it starts with "G-XXXXXXXXXX").

Step 2: Insert GA4 Code into Blogger HTML

This step requires direct editing of your theme code. Be careful to save a backup before editing.

  1. Go to **Theme (테마)** in your Blogger dashboard.
  2. Click the **Customize** dropdown and select **Edit HTML**.
  3. Search for the closing </head> tag.
  4. **Paste the full GA4 tracking code snippet (from Google's interface) just before the </head> tag.**
  5. Click **Save (저장)**.

Verification: Checking Your GA4 Setup

To confirm your installation, visit your blog and check the **Realtime** report in GA4. You should see at least one active user (yourself) within a minute. This confirms data is flowing correctly.


// Example of where to paste the code (just before </head>)
// ... other code ...
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXX"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());
  gtag('config', 'G-XXXXXXXXXX'); // REPLACE with your Measurement ID
</script>
</head> <!-- YOUR CODE GOES RIGHT HERE -->
<body>
// ... rest of the body ...

Conclusion

With GA4 successfully integrated, your blog is now equipped with the data foundation necessary for sustained growth and monetization optimization. Regularly reviewing these metrics is critical for identifying high-revenue pages and low-performing content.

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