| Caching | Code | Explaination | HTTP
|
|---|
| | 1xx
| INFORMATIONAL |
|
| | 100 | Continue | >=1.1
|
| | 101 | Switching Protocols | >=1.1
|
| | 102 | Extended | >=1.1
|
| | 2xx
| SUCCESSFUL |
|
| c | 200 | OK | >=1.0
|
| | 201 | Created | >=1.0
|
| | 202 | Accepted | >=1.0
|
| c | 203 | Non-Authoriative Information | >=1.1
|
| N | 204 | No Content | >=1.0
|
| | 205 | Reset Content | >=1.1
|
| | 206 | Partial Content | >=1.1
|
| | 220 | Uses Protocol Extensions | >=1.2
|
| | 3xx
| REDIRECTION |
|
| C | 300 | Multiple Choices | >=1.1
|
| C | 301 | Moved Permanently | >=1.0
|
| E | 302 | Moved Temporarily | 1.0
|
| E | 302 | Found | >=1.1
|
| - | 303 | See Other | >=1.1
|
| - | 304 | Not Modified | >=1.0
|
| N | 305 | Use Proxy (proxy redirect) | >=1.1
|
| | 307 | Temporary Redirect | >=1.1
|
| | 4xx
| CLIENT ERROR |
|
| N | 400 | Bad Request | >=1.0
|
| - | 401 | Unauthorized | >=1.0
|
| | 402 | Payment Required | >=1.1
|
| N | 403 | Forbidden | >=1.0
|
| N | 404 | Not Found | >=1.0
|
| N | 405 | Method Not Allowed | >=1.1
|
| | 406 | Not Acceptable | >=1.1
|
| - | 407 | Proxy Authentication Required | >=1.1
|
| | 408 | Request Timeout | >=1.1
|
| | 409 | Conflict | >=1.1
|
| C | 410 | Gone | >=1.1
|
| | 411 | Length Required | >=1.1
|
| | 412 | Precondition Failed | >=1.1
|
| | 413 | Request Entity To Large | >=1.1
|
| N | 414 | Request-URI Too Long | >=1.1
|
| | 415 | Unsupported Media Type | >=1.0
|
| | 416 | Requested range not satisfiable | >=1.1
|
| | 417 | Expectation Failed | >=1.1
|
| | 420 | Bad Protocol Extension Request | >=1.2
|
| | 421 | Protocol Extension Unknown | >=1.2
|
| | 422 | Protocol Extension Refused | >=1.2
|
| | 423 | Bad Protocol Extension Parameters | >=1.2
|
| | 5xx
| SERVER ERROR |
|
| N | 500 | Internal Server Error | >=1.0
|
| N | 501 | Not Implemented | >=1.0
|
| N | 502 | Bad Gateway | >=1.0
|
| N | 503 | Service Unavailable | >=1.0
|
| N | 504 | Gateway Timeout | >=1.1
|
| | 505 | HTTP Version Not Supported | >=1.1
|
| | 510 | Not Extended | >=1.1
|
| | 520 | Protocol Extension Error | >=1.2
|
| | 521 | Protocol Extension Not Implemented | >=1.2
|
| | 522 | Protocol Extension Parameters Not Acceptable | >=1.2
|
| | 6xx
| SQUID ERROR |
|
| - | 600 | Squid header parsing error | Squid only
|