Edge Functions)

Deploy serverless code to globally distributed points of presence for sub-millisecond execution near the user.

Edge Functions eliminate the round-trip latency of centralized data centers by running logic on V8 engines at the network frontier. By utilizing providers like Vercel or Cloudflare, developers execute middleware, A/B testing, and dynamic content personalization within 10ms of the end-user. This architecture bypasses heavy cold starts (typical of legacy lambdas) and scales automatically across 100+ global locations. It is the standard for high-performance routing and real-time header manipulation.

https://vercel.com/features/edge-functions