| 100: Continue |
| 101: Switching Protocols |
| 102: Processing |
| 200: OK |
| 201: Created |
| 202: Accepted |
| 203: Non-Authoritative Information |
| 204: No Content |
| 205: Reset Content |
| 206: Partial Content |
| 207: Multi-Status |
| 208: Already Reported |
| 226: IM Used |
| 300: Multiple Choices |
| 301: Moved Permanently |
| 302: Found |
| 303: See Other |
| 304: Not Modified |
| 305: Use Proxy |
| 306: Unused |
| 307: Temporary Redirect |
| 308: Permanent Redirect |
| 400: Bad Request |
| 401: Unauthorized |
| 402: Payment Required |
| 403: Forbidden |
| 404: Not Found |
| 405: Method Not Allowed |
| 406: Not Acceptable |
| 407: Proxy Authentication Required |
| 408: Request Time-out |
| 409: Conflict |
| 410: Gone |
| 411: Length Required |
| 412: Precondition Failed |
| 413: Request Entity Too Large |
| 414: Request-URI Too Large |
| 415: Unsupported Media Type |
| 416: Requested range not satisfiable |
| 417: Expectation Failed |
| 418: I'm a teapot |
| 421: Misdirected Request |
| 422: Unprocessable Entity |
| 423: Locked |
| 424: Failed Dependency |
| 425: Unordered Collection |
| 426: Upgrade Required |
| 428: Precondition Required |
| 429: Too Many Requests |
| 431: Request Header Fields Too Large |
| 451: Unavailable For Legal Reasons |
| 500: Internal Server Error |
| 501: Not Implemented |
| 502: Bad Gateway |
| 503: Service Unavailable |
| 504: Gateway Time-out |
| 505: HTTP Version not supported |
| 506: Variant Also Negotiates |
| 507: Insufficient Storage |
| 508: Loop Detected |
| 509: Bandwidth Limit Exceeded |
| 510: Not Extended |
| 511: Network Authentication Required |