Automatic regional content.
HOW IT WORKS
The visitor's network address indicates an approximate location.
HOW ACCURATE IT IS
Country level, usually reliable.
City level, frequently wrong.
Anyone using a VPN or an unusual network appears elsewhere.
WHAT TO USE IT FOR
Suggesting a regional version Defaulting a country field Showing relevant delivery information
WHAT NOT TO USE IT FOR
Forcing a version with no override Blocking access Anything where being wrong causes a problem
THE OVERRIDE REQUIREMENT
Always offer a way to choose.
A Nigerian traveller abroad should be able to reach the Nigerian version.
HOW TO PRESENT IT
A dismissible suggestion, not a forced redirect.
"It looks like you are in Ghana. Visit our Ghana site?"
WHAT BREAKS WITH CACHING
Location-based content and page caching conflict.
A cached page shows the first visitor's region to everyone.
Handle detection client-side, or exclude those pages from caching.
