Visual guides
A VPN or proxy makes sites see the intermediary IP, not necessarily your original network address.
The public IP can change to the VPN country or datacenter.
Geolocation shows the exit point, not your real location.
If DNS and traffic exit through different routes, privacy can be inconsistent.
A VPN changes the IP, but the site language is decided by the browser. If your browser prefers Spanish, MyIPPublic shows Spanish even when the IP is in the USA.
You can force English with /en or change your browser preferred language.
Check visible IP, approximate country, provider/ASN and consistency with the expected VPN. If ASN or country does not match, routes or servers may differ.
FAQ
No. It changes visible IP, but browser, session, cookies, DNS or account data can reveal more context.
Browser. It better reflects visitor preference than an IP that can come from a VPN.