vercel/next.js / errors / max-custom-routes-reached.mdx

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title: Max Custom Routes Reached

Why This Error Occurred

The number of combined routes from headers, redirects, and rewrites exceeds 1000. This can impact performance because each request will iterate over all routes to check for a match in the worst case.

Possible Ways to Fix It

• Leverage dynamic routes inside of the pages folder to reduce the number of rewrites needed
• Combine headers routes into dynamic matches e.g. /first-header-route /second-header-route -> /(first-header-route$|second-header-route$)

Useful Links

• Dynamic Routes documentation
• Rewrites documentation
• Redirects documentation
• Headers documentation