Status Code

Short Name

Description

100

Continue

This interim response is used to inform the client that the initial part of the request has been received and has not yet been rejected by the server.

101

Switching Protocols

The server understands and is willing to comply with the client's request field for a change in the application protocol being used on this connection. The server will switch protocols immediately.

102

Processing

This interim response is used to inform the client that the server has accepted the complete request, but has not yet completed it.

Status Code

Short Name

Description

200

OK

The request has succeeded.

201

Created

The request has been fulfilled and resulted in a new resource being created.

202

Accepted

The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.

203

Non-Authoritative Information

The returned meta information in the entity header is not the definitive set as available from the origin server, but is gathered from a local or a third-party copy.

204

No Content

The server has fulfilled the request but does not need to return an entity body, and might want to return updated meta information.

205

Reset Content

The server has fulfilled the request and the client should reset the document view which caused the request to be sent.

206

Partial Content

The server has fulfilled the partial GET request for the resource.

207

Multi-Status

This status code provides status for multiple independent operations.

208

Already Reported

The members of a DAV binding have already been enumerated in a previous reply to this request, and are not being included again.

226

IM Used

The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance

Status Code

Short Name

Description

300

Multiple Choices

The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent-driven negotiation information is being provided so that the client can select a preferred representation and redirect its request to that location.

301

Moved Permanently

The requested resource has been assigned a new permanent URI and any future references to this resource should use one of the returned URIs.

302

Found

The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client should continue to use the Request-URI for future requests.

303

See Other

The response to the request can be found under a different URI and should be retrieved using a GET method on that resource.

304

Not Modified

Indicates that the resource has not been modified since the version specified by the request headers.

305

Use Proxy

The requested resource is only available through a proxy, whose address is provided in the response.

307

Temporary Redirect

The requested resource resides temporarily under a different URI. Since the redirection may be altered on occasion, the client should continue to use the Request-URI for future requests.

308

Permanent Redirect

The target resource has been assigned a new permanent URI and any future references to this resource sh use one of the returned URIs.  

Status Code

Short Name

Description

400

Bad Request

The request could not be understood by the server due to malformed syntax.

401

Unauthorized

The request requires user authentication.

402

Payment Required

This code is reserved for future use.

403

Forbidden

The server understood the request, but is refusing to fulfill it. Authorization will not help.

404

Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

405

Method Not Allowed

The method specified in the Request-Line is not allowed for the resource identified by the Request-URI.

406

Not Acceptable

The resource identified by the request is only capable of generating response entities which have content characteristics not acceptable according to the accept headers sent in the request.

407

Proxy Authentication Required

This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy.

408

Request Timeout

The client did not produce a request within the time that 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 at the server and no forwarding address is known. This condition is expected to be considered permanent.

411

Length Required

The server refuses to accept the request without a defined Content-Length.

412

Precondition Failed

The precondition given in one or more of the request-header fields evaluated to false when it was tested on the server.

413

Request Entity Too Large

The server is refusing to process a request because the request entity is larger than the server is willing or able to process.

414

Request-URI Too Long

The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.

415

Unsupported Media Type

The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.

416

Requested Range Not Satisfiable

The client has asked for a portion of the file, but the server cannot supply that portion.

417

Expectation Failed

The expectation given in an Expect request header field could not be met by this server, or, if the server is a proxy, the server has unambiguous evidence that the request could not be met by the next-hop server.

422

Unprocessable Entity

The request was well-formed but was unable to be followed due to semantic errors.

423

Locked

The resource that is being accessed is locked

424

Failed Dependency

The request failed due to failure of a previous request.

426

Upgrade Required

The client should switch to a different protocol.

428

Procondition Required

The origin server requires the request to be conditional.

429

Too Many Request

The user has sent too many requests in a given amount of time.

431

Request Header Fields Too Large

The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large.

Status Code

Short Name

Description

500

Internal Server Error

The server encountered an unexpected condition which prevented it from fulfilling the request.

501

Not Implemented

The server does not support the functionality required to fulfill the request. This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource.

502

Bad Gateway

The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.

503

Service Unavailable

The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay.

504

Gateway Timeout

The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI some other auxiliary server it needed to access in attempting to complete the request.

505

HTTP Version Not Supported

The server does not support, or refuses to support, the HTTP protocol version that was used in the request message.

507

Insufficient Storage

The server is unable to store the representation needed to complete the request.

508

Loop Detected

The server detected an infinite loop while processing the request.

510

Not Extended

Further extensions to the request are required for the server to fulfil it.

511

Network Authentication Required

The client needs to authenticate to gain network access