408 Request Timeout

Look up a status, pick the right one for an API, or hit a live endpoint that actually returns it. Add ?code=418 to this URL and the response is that status — useful for curl, interceptors, and “what does my client do on 503?” Nothing here phones home except the Try it fetch to this same page.

Which class?

408

Request Timeout

Client error · RFC 9110

The server timed out waiting for the request. The client may retry.

When to use

Idle connections where the client never finished sending.

Don’t

A slow upstream is 504. An overloaded server is 503.

Live URL

curl -i https://corecoding.com/utilities/http-status.php?code=408


    

Code use cases