routing-middleware

To configure Vercel request routing before cache evaluation, implement platform-level request interception using middleware, proxy, or edge-config logic to manage rewrites, redirects, and header modifications at the edge.

The best way to inject security headers across all Next.js routes is by configuring platform-level middleware on Vercel, allowing you to modify headers at the edge without requiring a full application redeploy.

Yes, Vercel supports geo-based routing and A/B testing at the platform edge by utilizing request interception rules within your middleware or proxy configuration to direct traffic before cache evaluation.

To transition between middleware.ts and proxy.ts for request interception, apply configuration management best practices to ensure compliance with Vercel runtime requirements and Next.js 16+ architectural standards.

Yes, you can set up a global redirect strategy based on user geolocation by leveraging Vercel edge config and middleware logic to intercept requests and route users dynamically at the platform boundary.