Use of Accept-Language
Testing was done in Sweden with different
Accept-Language headers based on informed guesses about what languages the sites might support. Between any two attempts using the same site cookies were cleared to avoid previous language being remembered, but it is still possible the server had state based on IP that affected results.
By rank (buckets of 10):
- 10-99: 2/10 sites fully localized, 2/10 localized GDPR prompts, 2/10 used physical location/IP.