>>merino+21
Geolocation, IP Lookup etc. You generally shouldn't care whether they're a resident in the EU, but just whether they are in EU or not. Remember GDPR doesn't cover any citizens from EU who aren't in EU.
>>baussh+w3
I read that GDPR applies to EU residents. That means someone who is EU resident non necessarily could be browsing from the EU. For example when on holidays.