HTTP Status Codes

1xx: Information

Message:
Description:

100 Continue
Only a part of the request has been received by the server, but as long as it has not been rejected, the client should continue with the request

101 Switching Protocols
The server switches protocol

2xx: Successful

Message:
Description:

200 OK
The request is OK

201 Created
The request is complete, and a new resource is created 

202 Accepted
The request is accepted for processing, but the processing is not complete

203 Non-authoritative Information

204 No Content

205 Reset Content

206 Partial Content

3xx: Redirection

Message:
Description:

300 Multiple Choices
A link list. The user can select a link and go to that location. Maximum five addresses  

301 Moved Permanently
The requested page has moved to a new url 

302 Found
The requested page has moved temporarily to a new url 

303 See Other
The requested page can be found under a different url 

304 Not Modified

305 Use Proxy

306 Unused
This code was used in a previous version. It is no longer used, but the code is reserved

307 Temporary Redirect
The requested page has moved temporarily to a new url

4xx: Client Error

Message:
Description:

400 Bad Request
The server did not understand the request

401 Unauthorized
The requested page needs a username and a password

402 Payment Required
You can not use this code yet

403 Forbidden
Access is forbidden to the requested page

404 Not Found
The server can not find the requested page

405 Method Not Allowed
The method specified in the request is not allowed

406 Not Acceptable
The server can only generate a response that is not accepted by the client

407 Proxy Authentication Required
You must authenticate with a proxy server before this request can be served

408 Request Timeout
The request took longer than the server was prepared to wait

409 Conflict
The request could not be completed because of a conflict

410 Gone
The requested page is no longer available 

411 Length Required
The “Content-Length” is not defined. The server will not accept the request without it 

412 Precondition Failed
The precondition given in the request evaluated to false by the server

413 Request Entity Too Large
The server will not accept the request, because the request entity is too large

414 Request-url Too Long
The server will not accept the request, because the url is too long. Occurs when you convert a “post” request to a “get” request with a long query information 

415 Unsupported Media Type
The server will not accept the request, because the media type is not supported 

416 

417 Expectation Failed

5xx: Server Error

Message:
Description:

500 Internal Server Error
The request was not completed. The server met an unexpected condition

501 Not Implemented
The request was not completed. The server did not support the functionality required

502 Bad Gateway
The request was not completed. The server received an invalid response from the upstream server

503 Service Unavailable
The request was not completed. The server is temporarily overloading or down

504 Gateway Timeout
The gateway has timed out

505 HTTP Version Not Supported
The server does not support the “http protocol” version