| CODE,DESCRIPTION |
| 100,Continue |
| 101,Switching Protocols |
| 102,Processing (WebDAV) |
| 200,OK |
| 201,Created |
| 202,Accepted |
| 203,Non-Authoritative Information |
| 204,No Content |
| 205,Reset Content |
| 206,Partial Content |
| 207,Multi-Status (WebDAV) |
| 208,Already Reported (WebDAV) |
| 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 (experiemental) |
| 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 Timeout |
| 409,Conflict |
| 410,Gone |
| 411,Length Required |
| 412,Precondition Failed |
| 413,Request Entity Too Large |
| 414,Request-URI Too Long |
| 415,Unsupported Media Type |
| 416,Requested Range Not Satisfiable |
| 417,Expectation Failed |
| 418,I'm a teapot (RFC 2324) |
| 420,Enhance Your Calm (Twitter) |
| 422,Unprocessable Entity (WebDAV) |
| 423,Locked (WebDAV) |
| 424,Failed Dependency (WebDAV) |
| 425,Reserved for WebDAV |
| 426,Upgrade Required |
| 428,Precondition Required |
| 429,Too Many Requests |
| 431,Request Header Fields Too Large |
| 444,No Response (Nginx) |
| 449,Retry With (Microsoft) |
| 450,Blocked by Windows Parental Controls (Microsoft) |
| 451,Unavailable For Legal Reasons |
| 499,Client Closed Request (Nginx) |
| 500,Internal Server Error |
| 501,Not Implemented |
| 502,Bad Gateway |
| 503,Service Unavailable |
| 504,Gateway Timeout |
| 505,HTTP Version Not Supported |
| 506,Variant Also Negotiates (Experimental) |
| 507,Insufficient Storage (WebDAV) |
| 508,Loop Detected (WebDAV) |
| 509,Bandwidth Limit Exceeded (Apache) |
| 510,Not Extended |
| 511,Network Authentication Required |
| 598,Network read timeout error |
| 599,Network connect timeout error |