Sooner or later almost every web product needs to know where a visitor is. Localized pricing, GDPR consent banners, content licensing, fraud checks, shipping estimates: all of it starts with the same question. Which country is this request coming from?There are three honest ways to answer it, and picking the wrong one for your situation either costs you accuracy or saddles you with maintenance you did not sign up for.
Method 1: The Header Your CDN Already Sends
If your traffic runs through Cloudflare, the CF-IPCountry header is already attached to every request, free. Similar headers exist on other CDNs.It is a two letter country code, nothing more: no city, no timezone, no currency, no proxy detection.For a consent banner that only needs to know EU or not, this is genuinely the right answer and you should stop reading here.
The catch is granularity and portability. The moment you need city level data, or you move off that CDN, the approach evaporates.
Method 2: A Self Hosted Geolocation Database







