HTTP Status Code

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HTTP URL Encoding HTTP Methods

What is HTTP Status Code

The Status-Code element in a server response, is a 3-digit integer where the first digit of the Status-Code defines the class of response and the last two digits do not have any categorization role. There are 5 values for the first digit.

http status code

An HTTP status code is a server response to a browser's request. When you visit a website, your browser sends a request to the site's server, and the server then responds to the browser's request with a three-digit code: the HTTP status code.

HTTP status codes are extensible and HTTP applications are not required to understand the meaning of all the registered status codes. Given below is a list of all the status codes.

S.NoCode RangeResponse MeaningDescription
1.100-199InformationalIt means the request has been received and the process is continuing.
2.200-299SuccessIt means the action was successfully received, understood, and accepted.
3.300-399RedirectionIt means further action must be taken in order to complete the request.
4.400-499Client ErrorIt means the request contains incorrect syntax or cannot be fulfilled.
5.500-599Server ErrorIt means the server failed to fulfill an apparently valid request.

1xx: Information

Status CodeDefault MessageMeaning
100ContinueThe server has received the initial part of the request, and the client can continue with the remainder of its request.
101Switching ProtocolsThe server is willing to comply with the client's request to switch protocols to the one specified in the request's Upgrade header. This might include switching to a newer HTTP version.

2xx: Successful

Status CodeDefault MessageMeaning
200OKThe request is OK.
201Created The request is complete, and a new resource is created.
202AcceptedThe request is accepted for processing, but the processing is not complete.
203Non-authoritative InformationThe information in the entity header is from a local or third-party copy, not from the original server.
204No ContentA status code and a header are given in the response, but there is no entity-body in the reply.
205Reset ContentThe browser should clear the form used for this transaction for additional input.
206Partial ContentThe server is returning partial data of the size requested. Used in response to a request specifying a Range header. The server must specify the range included in the response with the Content-Range header.

3xx: Redirection

Status CodeDefault MessageMeaning
300Multiple ChoicesA link list. The user can select a link and go to that location. Maximum five addresses
301Moved PermanentlyThe requested page has moved to a new url.
302FoundThe requested page has moved temporarily to a new url.
303See OtherThe requested page can be found under a different url
304Not ModifiedThis is the response code to an If-Modified-Since or If-None-Match header, where the URL has not been modified since the specified date.
305Use ProxyThe requested URL must be accessed through the proxy mentioned in the Location header.
306UnusedThis code was used in a previous version. It is no longer used, but the code is reserved.
307Temporary RedirectThe requested page has moved temporarily to a new url.

4xx: Client Error

Status CodeDefault MessageMeaning
400Bad RequestThe server did not understand the request.
401UnauthorizedThe requested page needs a username and a password.
402Payment RequiredYou can not use this code yet.
403ForbiddenAccess is forbidden to the requested page.
404Not FoundThe server can not find the requested page.
405 Method Not AllowedThe method specified in the request is not allowed
406Not AcceptableThe server can only generate a response that is not accepted by the client.
407Proxy Authentication RequiredYou must authenticate with a proxy server before this request can be served.
408Request TimeoutThe request took longer than the server was prepared to wait.
409ConflictThe request could not be completed because of a conflict.
410GoneThe requested page is no longer available.
411Length RequiredThe "Content-Length" is not defined. The server will not accept the request without it.
412Precondition Failed The pre condition given in the request evaluated to false by the server.
413Request Entity Too LargeThe server will not accept the request, because the request entity is too large.
414Request-url Too LongThe 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.
415Unsupported Media TypeThe server will not accept the request, because the mediatype is not supported.
416Requested Range Not SatisfiableThe requested byte range is not available and is out of bounds.
417Expectation FailedThe expectation given in an Expect request-header field could not be met by this server

5xx: Server Error

Status CodeDefault MessageMeaning
500Internal Server ErrorThe request was not completed. The server met an unexpected condition.
501Not ImplementedThe request was not completed. The server did not support the functionality required.
502Bad GatewayThe request was not completed. The server received an invalid response from the upstream server.
503Service UnavailableThe request was not completed. The server is temporarily overloading or down.
504Gateway TimeoutThe gateway has timed out
505HTTP Version Not SupportedThe server does not support the "http protocol" version.

HTTP URL Encoding HTTP Methods

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