HTTP Status Codes Reference Guide
HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes. Click on any category to view codes.
Informational
Request received, continuing process.
The server has received the request headers and the client should proceed to send the request body.
The requester has asked the server to switch protocols and the server has agreed to do so.
WebDAV; The server has received and is processing the request, but no response is available yet.
Success
The action was successfully received, understood, and accepted.
Standard response for successful HTTP requests.
The request has been fulfilled, resulting in the creation of a new resource.
The request has been accepted for processing, but the processing has not been completed.
The server successfully processed the request, and is not returning any content.
The server is delivering only part of the resource (range transmission) due to a Range header sent by the client.
Redirection
Further action must be taken in order to complete the request.
This and all future requests should be directed to the given URI.
Tells the client to look at (browse to) another URL. Formerly "Moved temporarily".
Indicates that the resource has not been modified since the version specified by the request headers.
The request should be repeated with another URI; however, future requests should still use the original URI.
The request and all future requests should be repeated using another URI.
Client Errors
The request contains bad syntax or cannot be fulfilled.
The server cannot or will not process the request due to an apparent client error.
Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or not yet been provided.
The request was valid, but the server is refusing action. The user might not have the necessary permissions for a resource.
The requested resource could not be found but may be available in the future.
A request method is not supported for the requested resource.
Indicates that the request could not be processed because of conflict in the current state of the resource.
WebDAV; The request was well-formed but was unable to be followed due to semantic errors.
The user has sent too many requests in a given amount of time ("rate limiting").
Server Errors
The server failed to fulfill an apparently valid request.
A generic error message, given when an unexpected condition was encountered and no more specific message is suitable.
The server either does not recognize the request method, or it lacks the ability to fulfill the request.
The server was acting as a gateway or proxy and received an invalid response from the upstream server.
The server cannot handle the request (because it is overloaded or down for maintenance).
The server was acting as a gateway or proxy and did not receive a timely response from the upstream server.