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HTTP/5xx (Server Error)

508 Loop Detected

The server detected an infinite loop while processing the request.

❓ Why does this happen?

WebDAV binding loops, or cPanel/LiteSpeed resource limits (entry processes) being hit on shared hosting.

✅ How to fix it

Remove circular bindings or redirects; on shared hosting, reduce concurrent processes or upgrade the plan.

Return or handle 508 in your stack

// app/api/resource/route.ts
export function GET() {
  return Response.json(
    { error: "Loop Detected", status: 508 },
    {
      status: 508
    }
  );
}

Live 508 mock endpoint

Point your app, tests, or retry logic at this free public URL to reproduce a real 508 response (CORS enabled, optional ?delay=ms up to 5000).

https://castov.com/api/mock/508

Frequently Asked Questions

What does HTTP Status 508 mean?
The server detected an infinite loop while processing the request.
Why am I getting a 508 status code?
WebDAV binding loops, or cPanel/LiteSpeed resource limits (entry processes) being hit on shared hosting.
How do I fix a 508 Loop Detected error?
Remove circular bindings or redirects; on shared hosting, reduce concurrent processes or upgrade the plan.
How can I test how my app handles a 508 response?
Send a request to https://castov.com/api/mock/508 — it returns a real 508 Loop Detected response with CORS enabled. Add ?delay=2000 to simulate a slow server.

Other 5xx status codes

500501502503504505507508511520521522523524525526

Browse the full HTTP status codes directory or troubleshoot terminal errors in the Error Fix Encyclopedia.