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by syrrim 1835 days ago
Use the referer, is my guess. Whereas browsers are starting to limit the sharing of referers, I don't think there are any plans to limit first party referers. So as long as the referer is your domain, you know the user navigated from within the site. Otherwise, the user followed a link offsite, likely shared by a friend. You can then assign a different tracking id to them.
1 comments

> Whereas browsers are starting to limit the sharing of referrers

AFAIK, they are starting to standardize the sharing of referrer. For most people, this is limiting the sharing. However, they used to have an easy to find GUI option to just opt out of referrers in general. That is no longer the case.