Informational

100 Continue

The initial part of the request has been received and the client may continue with its request.

101 Switching Protocols

The server is complying with a client request to switch protocols to the one specified in the Upgrade header field.

Client Request Successful

200 OK

The client's request was successful, and the server's response contains the requested data.

201 Created

Thsi status code is used whenever a new URI is created. With this result code, the location header is given by the server to specify where the new data was placed.

202 Accepted

203 Non-Authoritative Answer

204 No Content

205 Reset Content

206 Partial Content

Redirection

300 Multiple Choices

301 Moved Permanetly

302 Found

303 See Other

304 Not Modified

305 Use Proxy

The requested URI must be accessed through the proxy in location header.

307 Temporary Redirect

Client Request Incomplete

400 Bad Request

The response code indicates that the server detected a syntax error in the client's request.

401 Unauthorized

402 Payment Required

403 Forbidden

404 Not Found

The document at the specified URI does not exist.
404 Research Labs (Funny)

405 Method Not Allowed

406 Not Acceptable

407 Proxy Authentication Required

408 Request Time-Out

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 Request Range Not Satisfiable

417 Expectation Failed

Server Errors

500 Internal Server Error

501 Not Implemented

502 Bad Gateway

503 Service Unavailable

504 Gateway Time-out

505 HTTP Version not supported

The server will not support the HTTP protocol version used in the request.