203 Non-Authoritative Information

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?

203

Non-Authoritative Information

Success · RFC 9110

The response is a transformed version of one from the origin, such as a proxy that modified it.

When to use

Rare. Transforming proxies. Application APIs almost always want 200.

Don’t

Do not use this to mean “partially correct.”

Live URL

curl -i https://corecoding.com/utilities/http-status.php?code=203


    

Code use cases