This is a list of HTTP status messages that might be returned when a browser requests a service from a web server.
1xx:Information
Message:
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Description:
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100 Continue
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The server has received the request headers, and the client should proceed to send the request body
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101 Switching Protocols
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The requester has asked the server to switch protocols
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103 Checkpoint
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Used in the resumable requests proposal to resume aborted PUT or POST requests
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2xx:Successful
Message:
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Description:
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200 OK
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The request is OK (this is the standard response for successful HTTP requests)
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201 Created
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The request has been fulfilled, and a new resource is created
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202 Accepted
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The request has been accepted for processing, but the processing has not been completed
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203 Non-Authoritative Information
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The request has been successfully processed, but is returning information that may be from another source
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204 No Content
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The request has been successfully processed, but is not returning any content
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205 Reset Content
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The request has been successfully processed, but is not returning any content, and requires that the requester reset the document view
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206 Partial Content
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The server is delivering only part of the resource due to a range header sent by the client
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3xx:Redirection
Message:
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Description:
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300 Multiple Choices
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A link list. The user can select a link and go to that location. Maximum five addresses
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301 Moved Permanently
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The requested page has moved to a new URL
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302 Found
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The requested page has moved temporarily to a new URL
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303 See Other
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The requested page can be found under a different URL
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304 Not Modified
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Indicates the requested page has not been modified since last requested
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306 Switch Proxy
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No longer used
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307 Temporary Redirect
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The requested page has moved temporarily to a new URL
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308 Resume Incomplete
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Used in the resumable requests proposal to resume aborted PUT or POST requests
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4xx:Client Error
Message:
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Description:
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400 Bad Request
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The request cannot be fulfilled due to bad syntax
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401 Unauthorized
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The request was a legal request, but the server is refusing to respond to it. For use when authentication is possible but has failed or not yet been provided
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402 Payment Required
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Reserved for future use
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403 Forbidden
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The request was a legal request, but the server is refusing to respond to it
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404 Not Found
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The requested page could not be found but may be available again in the future
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405 Method Not Allowed
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A request was made of a page using a request method not supported by that page
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406 Not Acceptable
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The server can only generate a response that is not accepted by the client
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407 Proxy Authentication Required
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The client must first authenticate itself with the proxy
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408 Request Timeout
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The server timed out waiting for the request
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409 Conflict
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The request could not be completed because of a conflict in the request
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410 Gone
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The requested page is no longer available
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411 Length Required
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The "Content-Length" is not defined. The server will not accept the request without it
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412 Precondition Failed
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The precondition given in the request evaluated to false by the server
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413 Request Entity Too Large
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The server will not accept the request, because the request entity is too large
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414 Request-URI Too Long
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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
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415 Unsupported Media Type
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The server will not accept the request, because the media type is not supported
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416 Requested Range Not Satisfiable
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The client has asked for a portion of the file, but the server cannot supply that portion
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417 Expectation Failed
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The server cannot meet the requirements of the Expect request-header field
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5xx:Server Error
Message:
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Description:
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500 Internal Server Error
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A generic error message, given when no more specific message is suitable
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501 Not Implemented
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The server either does not recognize the request method, or it lacks the ability to fulfill the request
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502 Bad Gateway
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The server was acting as a gateway or proxy and received an invalid response from the upstream server
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503 Service Unavailable
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The server is currently unavailable (overloaded or down)
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504 Gateway Timeout
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The server was acting as a gateway or proxy and did not receive a timely response from the upstream server
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505 HTTP Version Not Supported
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The server does not support the HTTP protocol version used in the request
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511 Network Authentication Required
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The client needs to authenticate to gain network access
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