Continue
An interim response and client should continue with request
Switching Protocols
Indicates to client / browser the server is switching protocols
Processing
Server is processing the request
Checkpoint
Resume aborted PUT or GET requests
Request - URI Too Long
The URI is too long and exceeds the maximum 2083 characters
OK
Server successfully processed request
Created
Request was successful and server created new resource
Accepted
Request accepted but not processed yet
Non-Authoritative Information
Request processed successfully but information returned may be from another source
No Content
Request completed but no content was returned
Reset Content
Request completed but no content was returned; requires requestor reset document view
Partial Content
Server delivered a partial GET request
Multiple Status
Successful response for WebDAV
Already Reported
Results previously returned and not inlcuded again
Content Different
Content and/or property mismatch between client and server
IM Used
Server has fulfilled the request and response is an instance manipulated result
Multiple Choices
Server has multiple actions available based on the request; user can select from list
Moved Permanently
Requested page has been permanently moved to a different URL
Moved Temporarily / Found
Requested page has been temporarily moved to a different URL; requestor should continue to use original URL
See Other
The requested page can be located at a different URL; user is not automatically forwarded
Not Modified
Page has not been modified sonce last request
Use Proxy
Requestor must use a proxy to access the requested page
Switch Proxy
No longer used
Temporary Redirect
Requested page has been temporarily moved to a different URL; requestor should continue to use original URL
Resume Incomplete
Used in resumable requests proposal to resume aborted POST and PUT requests
Bad Request
Request cannot be fulfilled due to incorrect syntax
Unauthorized
Authentication is required or has not been provided
Payment Required
Not currently used. Intended for use in digital cash transactions
Forbidden
Client does not have suffcient permissions to access the requested resource
Not Found
Requested page cannot be found at current location but could be available in the future
Method Not Allowed
Request was made using a method not supported by page
Not Acceptable
Server can provide only content that is unacceptable to the client
Proxy Authentication Required
Client must authenticate with a proxy to access resource
Request Timeout
Server timed out waiting for request from client
Conflict
Request could not be processed due to a conflict
Gone
The requested page is no longer available and will not be available again
Length Required
Server has denied request due to unspecified length of content
Precondition Failed
Resource does not meet conditions of client's request
Request Entity Too Large
Request is too large to fulfill
Request URI Too Long
Requested URL is too long for the server to process
Unsupported Media Type
Server does not media type requested
Requested Range Not Satisfiable
Client requested portion of file but server cannot satisfy the request
Expectation Failed
Server cannot meet requirements of Expect request header field
I'm A Teapot
An IETF April Fools' joke
Enhance Your Calm
Client rate limiting by Twitter
Unprocessable Entity
Unable to process request due to semantic errors
Locked
Requested resource is locked
Method Failure
Request failed due to
Upgrade Required
Client should switch to a different protocol
Precondition Required
Server requires request to be conditional to prevent conflicts
Too Many Requests
User has sent too many requests in a specified time period
Request Header Fields Too Large
Request cannot be processed due to individual field or collective fields are too large
No Response
Indicates Nginx server has not returned requested information and has closed connection
Retry With
Request should be performed after the specified action
Blocked By Windows Parental Controls
Page blocked by Windows Parental Controls
Redirect
Either more efficient server available or server can't access user's mailbox
Client Closed Request
Indicates client has closed connection prior to server completing request
Internal Server Error
Server encountered an unexpected condition that prevented request fulfillment.
Not Implemented
Request is unrecognizable or server lacks ability to fulfill it
Bad Gateway
Server received an invalid response from an upstream server and could not fulfill request
Service Unavailable
Server is currently unavailable
Gateway Timeout
Server did not receive a timely response from upstream server
HTTP Version Not Supported
Server does not support the HTTP protocol used in request
Variant Also Negotiates
Content negotiation results in circular reference
Insufficient Storage
Insufficient storage
Loop Detected
Server detected an infinite loop while processing request
Bandwidth Limit Exceeded
Apache extension not defined in RFC's to communicate bandwidth allocation exceeded
Not Extended
Further extensions to the request are required to fulfill it
Network Authentication Required
Client is required to authenticate to gain network access
Network Read Timeout Error
Client behind proxy experiences network read timeout error
Network Connect Timeout Error
Client behind proxy experiences network connect timeout error