🌐 IETF RFC 7231 / 9110 HTTP Response Directory
HTTP Status Codes & Diagnostics Guide
Search over 60+ HTTP response status codes with official RFC specifications, caching rules, and developer troubleshooting solutions.
Common HTTP Responses:
200 OK
301 Moved Permanently
400 Bad Request
401 Unauthorized
403 Forbidden
404 Not Found
429 Too Many Requests
500 Internal Error
502 Bad Gateway
503 Unavailable
HTTP Status Code Classifications (RFC 7231 / 9110)
- 1xx (Informational): Request received, continuing process.
- 2xx (Successful): The action was successfully received, understood, and accepted.
- 3xx (Redirection): Further action needs to be taken by the user agent to complete the request.
- 4xx (Client Error): The request contains bad syntax or cannot be fulfilled.
- 5xx (Server Error): The server failed to fulfill an apparently valid request.