Why is multi-domain measurement important? Multidomain measurement is important because: It allows you to get a complete view of user behavior. Helps you improve conversion attribution. It allows you to optimize your digital marketing campaigns. It helps you make better strategic decisions. 3. How to set up multi-domain measurement? To set up multi-domain measurement, you must: Create a GA4 property. Add the domains you want to measure.
Set up domain tracking. Check the jamaica number data configuration. GA4 Cookies and Cross-Domain Measurement When consent is given , Analytics uses first-party cookies to define unique user and session IDs. , cookies with new IDs are created for each domain a user visits. As a result, a user visiting different root domains and on the same device will be identified separately (two users and two sessions instead of one user and one session).
With cross-domain measurement, cookies retain the same IDs, which are transferred from one domain to another using a URL parameter ( _gl) when users navigate between domains via a link or form. Analytics therefore identifies only one user and one session. Setting up multi-domain in GA4: In Manage , go to Data Collection and Modification and click Data Flows. Click Web, and then click a web data stream.