How can I set up cross-domain tracking between two websites in GA4?
Asked on Aug 28, 2025
Answer
To set up cross-domain tracking in Google Analytics 4 (GA4), you need to configure your data streams to recognize and track users across multiple domains. This involves adjusting the measurement ID settings to include both domains.
- Sign in to your Google Analytics account.
- Navigate to Admin → Data Streams and select the web data stream you want to configure.
- In the data stream settings, click on "More Tagging Settings" and then "Configure your domains."
- Add the domains you want to track under "Domains" and ensure they are separated by commas.
- Save your changes to apply cross-domain tracking.
Additional Comment:
- Ensure that the GA4 tag is implemented on all domains involved in cross-domain tracking.
- Cross-domain tracking helps maintain a single user session across different domains, improving the accuracy of user journey analysis.
- Verify the setup by checking if the client ID remains consistent when navigating between the domains.
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