General

1xx HTTP_INFORMATIONAL
Request was received; processing can continue.
2xx HTTP_SUCCESSFUL
The request was successfully received, understood, and accepted.
3xx HTTP_REDIRECTION
Further action must be taken in order to complete the request.
4xx HTTP_CLIENT_ERROR
The request contained bad syntax or cannot be fulfilled.
5xx HTTP_SERVER_ERROR
The server failed to fulfill an apparently valid request.

Detail

100 HTTP_CONTINUE

Request was received and processing can continue.
101 HTTP_SWITCHING_PROTOCOLS
Request to switch protocols accepted.
200 HTTP_OK
Request completed successfully.
201 HTTP_CREATED
Request fulfilled and resulted in new resource being created.
202 HTTP_ACCEPTED
Request accepted, but processing has not completed.
203 HTTP_NON_AUTHORITATIVE_INFORMATION
Information in Header is not from original server.
204 HTTP_NO_CONTENT
Request received; no information exists.
205 HTTP_RESET_CONTENT
Request fulfilled; reset document view.
206 HTTP_PARTIAL_CONTENT
The server has fulfilled the partial GET request for the resource.
300 HTTP_MULTIPLE_CHOICES
Requested address refers to more than one entity.
301 HTTP_MOVED_PERMANENTLY
Page has been moved permanently; new URL available.
302 HTTP_FOUND
Page has been moved temporarily; new URL available.
303 HTTP_SEE_OTHER
Requested data is somewhere else; GET method should be used to retrieve it.
304 HTTP_NOT_MODIFIED
Requested resource has not been modified.
305 HTTP_USE_PROXY
Requested resource must be accessed through proxy given by Location field.
307 HTTP_TEMPORARY_REDIRECT
Requested data temporarily resides at a new location.
400 HTTP_BAD_REQUEST
Request could not be processed due to syntax error.
401 HTTP_UNAUTHORIZED
Client request did not include proper authentication data.
402 HTTP_PAYMENT_REQUIRED
Payment is required. (Not implemented at this time. Reserved for future use.)
403 HTTP_FORBIDDEN
Request was understood, however access is forbidden.
404 HTTP_NOT_FOUND
Requested document could not be found.
405 HTTP_METHOD_NOT_ALLOWED
The method being used to access the file is not allowed.
406 HTTP_NOT_ACCEPTABLE
Request document does not exist in a format the client can accept.
407 HTTP_PROXY_AUTHENTICATION_REQUIRED
Client must first authenticate with proxy for access.
408 HTTP_REQUEST_TIMEOUT
The client did not produce a request within the time that the server was prepared to wait.
409 HTTP_CONFLICT
Request could not be completed due to a conflict with the resource.
410 HTTP_GONE
Requested resource no longer exists and no forwarding address is known.
411 HTTP_LENGTH_REQUIRED
Request is missing required Content-Length header.
412 HTTP_PRECONDITION_FAILED
Request failed due to precondition not being met.
413 HTTP_REQUEST_ENTITY_TOO_LARGE
Request was too big to process.
414 HTTP_REQUEST_URI_TOO_LARGE
Request refused due to URL being longer than server is willing to process.
415 HTTP_UNSUPPORTED_MEDIA_TYPE
Requested resource format is not supported.
416 HTTP_REQUESTED_RANGE_NOT_SATISFIABLE
Request includes a Range header and none of the ranges specified are contained within the requested resource.
417 HTTP_EXPECTATION_FAILED
The server is unable to meet the demands of the Expect header given by the client.
500 HTTP_INTERNAL_SERVER_ERROR
The server encountered an unexpected condition which prevented it from fulfilling the request.
501 HTTP_NOT_IMPLEMENTED
The server does not support the functionality required to fulfill the request.
502 HTTP_BAD_GATEWAY
The server, while acting as a gateway or proxy, received an invalid response from an upstream provider.
503 HTTP_SERVICE_UNAVAILABLE
The server is currently unable to handle the request due to a temporary overloading or maintenance of the server.
504 HTTP_GATEWAY_TIMEOUT
The server, while acting as a gateway or proxy, did not receive a timely response from an upstream provider.
505 HTTP_VERSION_NOT_SUPPORTED
The server does not support, or refuses to support, the HTTP protocol version that was used in the request.