HTTP Messages

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# HTTP Status Messages

When a browser requests a service from a web server, an error might occur.

This is a list of HTTP status messages that might be returned:

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

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