Requests received by Serverless Functions on Pro and Enterprise Teams are now enriched with headers containing information about the geographic location of the visitor:
X-Vercel-IP-Country– The 2-letter country code of the IP sending the request.
X-Vercel-IP-Country-Region– The ISO 3166-2 region code associated to the IP.
X-Vercel-IP-City– The city name associated to the IP.
As an example, a request from Tokyo is now enriched with the following headers:
X-Vercel-IP-Country: JPX-Vercel-IP-Country-Region: 13X-Vercel-IP-City: Tokyo
This feature is now automatically activated for all new and existing Serverless Functions on Pro and Enterprise Teams — no code or configuration change needed.
Check out the documentation as well.