For websites, like CuéntaNos and Refugee Info, with multiple sub-domains, the Google Analytics (GA4) property is set up under the same overall Property ID, with stream IDs tracking each sub-domain separately.
- Stream ID: The unique identifier for the data stream from which user activity originates
The root domain also has a stream ID, so that users to each separate sub-domain can be tracked. The stream name/ID can be used in the reports to filter by website (e.g. Refugee Info Italy vs. RI Greece vs. the country selector page).
To view data for your website:
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Each report and chart will then have the comparisons side-by-side separated by sub-domain: