r/gdpr
Found out Google Analytics was tracking EU visitors before they gave consent
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Post
I recently started advertising to people in the EU and noticed something I wasn't expecting. Google Analytics was already tracking visitors before they'd made a choice on the cookie banner. I'd always assumed that having the banner set up meant the tracking behind it was being handled properly, so this sent me digging into what was loading before someone clicked accept or reject. Now I'm wondering how people normally test this stuff because doing it manually seems like a pain. If you want to see what happens for visitors in different countries you need to test from those locations, which means using a VPN or something similar, then sitting in devtools watching individual requests. Even then it isn't always obvious which third party owns a particular request. For anyone managing sites with traffic from multiple regions, how are you checking this? Do you manually test from different locations or is there a reliable way to scan the site and see what's firing before and after consent?
Extracted from these lines
[comment u/Tough-Gas-2019] Common issue, GA/GTM tags firing before consent, usually from a misconfigured trigger or a script the CMP isn't controlling.
[comment u/Tough-Gas-2019] Worth knowing: CMPs like OneTrust or Cookiebot aren't foolproof. They rely on periodic scans (weekly/monthly, not daily), so a new script or tag can slip through undetected for weeks.