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?
The server hit an unexpected condition. This is your bug, not the client’s.
When to use
Unhandled exceptions. Log it, show a generic body, do not leak stack traces in production.
Don’t
Do not use 500 for bad input (400/422) or auth (401/403). If a dependency failed, 502 or 503 is more honest.
Live URL
curl -i https://corecoding.com/utilities/http-status.php?code=500
No codes match.
Code use cases