HTTP Status Code Lookup
Search every HTTP status code by number or keyword. Lookups are instant — the full table is embedded in the page.
HTTP status classes
- 1xx — Informational. The request has been received and the server is continuing to process it.
- 2xx — Success. The request was successfully received, understood, and accepted.
- 3xx — Redirection. Further action must be taken to fulfil the request.
- 4xx — Client errors. The request contains bad syntax or cannot be fulfilled as-is.
- 5xx — Server errors. The server failed to fulfil an apparently valid request.
For a full prose walk-through, see the HTTP Status Codes reference.