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[WebApp TIPs] HTTP Status Code Definitions
hypermedia information systems. It is a generic, stateless, protocol which can be used for many tasks
beyond its use for hypertext, such as name servers and distributed object management systems,
through extension of its request methods, error codes and headers [47]. A feature of HTTP is the
typing and negotiation of data representation, allowing systems to be built independently of the
data being transferred. HTTP has been in use by the World-Wide Web global information initiative
since 1990.
Status codes for Hypertext Transfer Protocol (HTTP/1.1)
| Code | Definition |
| 1xx | Informational |
| 100 | CONTINUE - the client should continue with request. |
| 101 | SWITCHING PROTOCOLS - the server will switch protocols as necessary. |
| 2xx | Successful |
| 200 | OK - the request was fulfilled. |
| 201 | CREATED - following a POST command. |
| 202 | ACCEPTED - accepted for processing, but processing is not completed. |
| 203 | NON-AUTHORITATIVE INFORMATION - the returned metainformation is not the definitive set from the original server. |
| 204 | NO CONTENT - request received but no information exists to send back. |
| 205 | RESET CONTENT - the server has fulfilled the request and the user agent should reset the document view. |
| 206 | PARTIAL CONTENT - the server has fulfilled the partial GET request. |
| 3xx | Redirection |
| 300 | MULTIPLE CHOICES - the requested resource has many representations. |
| 301 | MOVED PERMANENTLY - the data requested has a new location and the change is permanent. |
| 302 | FOUND - the data requested has a different URL temporarily. |
| 303 | SEE OTHER - a suggestion for the client to try another location. |
| 304 | NOT MODIFIED - the document has not been modified as expected. |
| 305 | USE PROXY - The requested resource must be accessed through the specified proxy. |
| 306 | UNUSED |
| 307 | TEMPORARY REDIRECT - the requested data resides temporarily at a new location. |
| 4xx | Client Errors |
| 400 | BAD REQUEST - syntax problem in the request or it could not be satisfied. |
| 401 | UNAUTHORIZED - the client is not authorized to access data. |
| 402 | PAYMENT REQUIRED - indicates a charging scheme is in effect. |
| 403 | FORBIDDEN - access not required even with authorization. |
| 404 | NOT FOUND - server could not find the given resource. |
| 405 | METHOD NOT ALLOWED |
| 406 | NOT ACCEPTABLE |
| 407 | PROXY AUTHENTICATION REQUIRED - the client must first authenticate with the proxy for access. |
| 408 | REQUEST TIMEOUT - the client did not produce a request within the time the server was prepared to wait. |
| 409 | CONFLICT - the request could not be completed due to a conflict with the current state of the resource. |
| 410 | GONE - the requested resource is no longer available. |
| 411 | LENGTH REQUIRED - the server refused to accept the request without a defined Content Length. |
| 412 | PRECONDITION FAILED |
| 413 | REQUESTED ENTITY TOO LARGE - the server is refusing to process a request because it is larger than the server is willing or able to process. |
| 414 | REQUEST-URI TOO LONG - the server is refusing to process a request because the URI is longer than the server is willing or able to process. |
| 415 | UNSUPPORTED MEDIA TYPE - requested resource format is not supported. |
| 416 | REQUESTED RANGE NOT SATISFIABLE |
| 417 | EXPECTATION FAILED |
| 5xx | Server Errors |
| 500 | INTERNAL ERROR - the server could not fulfill the request because of an unexpected condition. |
| 501 | NOT IMPLEMENTED - the sever does not support the facility requested. |
| 502 | BAD GATEWAY - received an invalid response from an upstream sever. |
| 503 | SERVICE UNAVAILABLE - the server is currently unable to handle a request. |
| 504 | GATEWAY TIMEOUT - The server, acting as a gateway/proxy, did not receive a timely response from an upstream server. |
| 505 | HTTP VERSION NOT SUPPORTED |
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