How to check if anonymization is used within Google Analytics script on a site

You can inspect this in your (web)browser:

1. View the page source or developer tools

• Open DevTools (F12) → go to the Network tab
• Filter for requests to www.google-analytics.com or gtag/js
• Look for the <script></script> line:
  gtag(‘config’, ‘UA-XXXXXX-X’, { ‘anonymize_ip’: true });
• If anonymize_ip: true is present → IP anonymization is active

2. Check for server-side tagging

• If the site uses server-side Google Tag Manager, cookies like FPID may appear
• These setups often include anonymization, but you’d need to inspect the server container or headers to confirm