http status
zhuan: http://www.askapache.com/htaccess/apache-status-code-headers-errordocument.html#apache-response-codes-57
57 APACHE HTTP STATUS RESPONSE CODES
Once I compiled the list of Apache recognized HTTP Status Codes, I was dying to see them all in action (i.e. the corresponding ErrorDocument). At first I thought I would have to create a php or perl script emulating each of the 57 HTTP Status Codes, a tedious undertaking I wasn't about to do. Instead I "asked Apache" by searching the Apache HTTP Documentation for ambiguity sending Status Codes and/or triggering ErrorDocuments with an Apache Directive.
While reading up on mod_alias and the Redirect directive I found:
Apache Docs
Syntax: Redirect [status] URL-path URL The status argument can be used to return other HTTP status codes. Other status codes can be returned by giving the numeric status code as the value of status. If the status is between 300 and 399, the URL argument must be present, otherwise it must be omitted.
100 Continue
ErrorDocument Continue | Sample 100 Continue
This means that the server has received the request headers, and that the client should proceed to send the request body (in case of a request which needs to be sent; for example, a POST request). If the request body is large, sending it to a server when a request has already been rejected based upon inappropriate headers is inefficient. To have a server check if the request could be accepted based on the requests headers alone, a client must send Expect: 100-continue as a header in its initial request (see RFC 2616 14.20 Expect header) and check if a 100 Continue status code is received in response before continuing (or receive 417 Expectation Failed and not continue).
101 Switching Protocols
ErrorDocument Switching Protocols | Sample 101 Switching Protocols
This means the requester has asked the server to switch protocols and the server is acknowledging that it will do so.[3]
102 Processing
ErrorDocument Processing | Sample 102 Processing
(WebDAV) - (RFC 2518 )
200 OK
ErrorDocument OK | Sample 200 OK
Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request the response will contain an entity describing or containing the result of the action.
201 Created
ErrorDocument Created | Sample 201 Created
The request has been fulfilled and resulted in a new resource being created.
202 Accepted
ErrorDocument Accepted | Sample 202 Accepted
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.
203 Non-Authoritative Information
ErrorDocument Non-Authoritative Information | Sample 203 Non-Authoritative Information
The server successfully processed the request, but is returning information that may be from another source.
204 No Content
ErrorDocument No Content | Sample 204 No Content
The server successfully processed the request, but is not returning any content.
205 Reset Content
ErrorDocument Reset Content | Sample 205 Reset Content
The server successfully processed the request, but is not returning any content. Unlike a 204 response, this response requires that the requester reset the document view.
206 Partial Content
ErrorDocument Partial Content | Sample 206 Partial Content
The server is delivering only part of the resource due to a range header sent by the client. This is used by tools like wget to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.
207 Multi-Status
ErrorDocument Multi-Status | Sample 207 Multi-Status
(WebDAV) - The message body that follows is an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.
226 IM Used
ErrorDocument IM Used | Sample 226 IM Used
The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance. The actual current instance might not be available except by combining this response with other previous or future responses, as appropriate for the specific instance-manipulation(s).
300 Multiple Choices
ErrorDocument Multiple Choices | Sample 300 Multiple Choices
Indicates multiple options for the resource that the client may follow. It, for instance, could be used to present different format options for video, list files with different extensions, or word sense disambiguation.
301 Moved Permanently
ErrorDocument Moved Permanently | Sample 301 Moved Permanently
This and all future requests should be directed to the given URI.
302 Found
ErrorDocument Found | Sample 302 Found
This is the most popular redirect code[citation needed], but also an example of industrial practice contradicting the standard. HTTP/1.0 specification (RFC 1945 ) required the client to perform a temporary redirect (the original describing phrase was "Moved Temporarily"), but popular browsers implemented it as a 303 See Other. Therefore, HTTP/1.1 added status codes 303 and 307 to disambiguate between the two behaviours. However, the majority of Web applications and frameworks still use the 302 status code as if it were the 303.
303 See Other
ErrorDocument See Other | Sample 303 See Other
The response to the request can be found under another URI using a GET method. When received in response to a PUT, it should be assumed that the server has received the data and the redirect should be issued with a separate GET message.
304 Not Modified
ErrorDocument Not Modified | Sample 304 Not Modified
Indicates the resource has not been modified since last requested. Typically, the HTTP client provides a header like the If-Modified-Since header to provide a time against which to compare. Utilizing this saves bandwidth and reprocessing on both the server and client, as only the header data must be sent and received in comparison to the entirety of the page being re-processed by the server, then resent using more bandwidth of the server and client.
305 Use Proxy
ErrorDocument Use Proxy | Sample 305 Use Proxy
Many HTTP clients (such as Mozilla[4] and Internet Explorer) do not correctly handle responses with this status code, primarily for security reasons.
306 Switch Proxy
ErrorDocument Switch Proxy | Sample 306 Switch Proxy
No longer used.
307 Temporary Redirect
ErrorDocument Temporary Redirect | Sample 307 Temporary Redirect
In this occasion, the request should be repeated with another URI, but future requests can still use the original URI. In contrast to 303, the request method should not be changed when reissuing the original request. For instance, a POST request must be repeated using another POST request.
400 Bad Request
ErrorDocument Bad Request | Sample 400 Bad Request
The request contains bad syntax or cannot be fulfilled.
401 Unauthorized
ErrorDocument Unauthorized | Sample 401 Unauthorized
Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication.
402 Payment Required
ErrorDocument Payment Required | Sample 402 Payment Required
The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, but that has not happened, and this code has never been used.
403 Forbidden
ErrorDocument Forbidden | Sample 403 Forbidden
The request was a legal request, but the server is refusing to respond to it. Unlike a 401 Unauthorized response, authenticating will make no difference.
404 Not Found
ErrorDocument Not Found | Sample 404 Not Found
The requested resource could not be found but may be available again in the future. Subsequent requests by the client are permissible.
405 Method Not Allowed
ErrorDocument Method Not Allowed | Sample 405 Method Not Allowed
A request was made of a resource using a request method not supported by that resource; for example, using GET on a form which requires data to be presented via POST, or using PUT on a read-only resource.
406 Not Acceptable
ErrorDocument Not Acceptable | Sample 406 Not Acceptable
The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.
407 Proxy Authentication Required
ErrorDocument Proxy Authentication Required | Sample 407 Proxy Authentication Required
Required
408 Request Timeout
ErrorDocument Request Timeout | Sample 408 Request Timeout
The server timed out waiting for the request.
409 Conflict
ErrorDocument Conflict | Sample 409 Conflict
Indicates that the request could not be processed because of conflict in the request, such as an edit conflict.
410 Gone
ErrorDocument Gone | Sample 410 Gone
Indicates that the resource requested is no longer available and will not be available again. This should be used when a resource has been intentionally removed; however, it is not necessary to return this code and a 404 Not Found can be issued instead. Upon receiving a 410 status code, the client should not request the resource again in the future. Clients such as search engines should remove the resource from their indexes.
411 Length Required
ErrorDocument Length Required | Sample 411 Length Required
The request did not specify the length of its content, which is required by the requested resource.
412 Precondition Failed
ErrorDocument Precondition Failed | Sample 412 Precondition Failed
The server does not meet one of the preconditions that the requester put on the request.
413 Request Entity Too Large
ErrorDocument Request Entity Too Large | Sample 413 Request Entity Too Large
The request is larger than the server is willing or able to process.
414 Request-URI Too Long
ErrorDocument Request-URI Too Long | Sample 414 Request-URI Too Long
The URI provided was too long for the server to process.
415 Unsupported Media Type
ErrorDocument Unsupported Media Type | Sample 415 Unsupported Media Type
The request did not specify any media types that the server or resource supports. For example the client specified that an image resource should be served as image/svg+xml, but the server cannot find a matching version of the image.
416 Requested Range Not Satisfiable
ErrorDocument Requested Range Not Satisfiable | Sample 416 Requested Range Not Satisfiable
The client has asked for a portion of the file, but the server cannot supply that portion (for example, if the client asked for a part of the file that lies beyond the end of the file).
417 Expectation Failed
ErrorDocument Expectation Failed | Sample 417 Expectation Failed
The server cannot meet the requirements of the Expect request-header field.
418 I'm a teapot
ErrorDocument I'm a teapot | Sample 418 I'm a teapot
The HTCPCP server is a teapot. The responding entity MAY be short and stout. Defined by the April Fools specification RFC 2324. See Hyper Text Coffee Pot Control Protocol for more information.
422 Unprocessable Entity
ErrorDocument Unprocessable Entity | Sample 422 Unprocessable Entity
(WebDAV) (RFC 4918 ) - The request was well-formed but was unable to be followed due to semantic errors.
423 Locked
ErrorDocument Locked | Sample 423 Locked
(WebDAV) (RFC 4918 ) - The resource that is being accessed is locked
424 Failed Dependency
ErrorDocument Failed Dependency | Sample 424 Failed Dependency
(WebDAV) (RFC 4918 ) - The request failed due to failure of a previous request (e.g. a PROPPATCH).
425 Unordered Collection
ErrorDocument Unordered Collection | Sample 425 Unordered Collection
Defined in drafts of WebDav Advanced Collections, but not present in "Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol" (RFC 3648).
426 Upgrade Required
ErrorDocument Upgrade Required | Sample 426 Upgrade Required
(RFC 2817 ) - The client should switch to TLS/1.0.
449 Retry With
ErrorDocument Retry With | Sample 449 Retry With
A Microsoft extension. The request should be retried after doing the appropriate action.
500 Internal Server Error
ErrorDocument Internal Server Error | Sample 500 Internal Server Error
A generic error message, given when no more specific message is suitable.
501 Not Implemented
ErrorDocument Not Implemented | Sample 501 Not Implemented
The server either does not recognise the request method, or it lacks the ability to fulfil the request.
502 Bad Gateway
ErrorDocument Bad Gateway | Sample 502 Bad Gateway
The server was acting as a gateway or proxy and received an invalid response from the upstream server.
503 Service Unavailable
ErrorDocument Service Unavailable | Sample 503 Service Unavailable
The server is currently unavailable (because it is overloaded or down for maintenance). Generally, this is a temporary state.
504 Gateway Timeout
ErrorDocument Gateway Timeout | Sample 504 Gateway Timeout
The server was acting as a gateway or proxy and did not receive a timely request from the upstream server.
505 HTTP Version Not Supported
ErrorDocument HTTP Version Not Supported | Sample 505 HTTP Version Not Supported
The server does not support the HTTP protocol version used in the request.
506 Variant Also Negotiates
ErrorDocument Variant Also Negotiates | Sample 506 Variant Also Negotiates
(RFC 2295 ) - Transparent content negotiation for the request, results in a circular reference.
507 Insufficient Storage
ErrorDocument Insufficient Storage | Sample 507 Insufficient Storage
(WebDAV) (RFC 4918 )
509 Bandwidth Limit Exceeded
ErrorDocument Bandwidth Limit Exceeded | Sample 509 Bandwidth Limit Exceeded
(Apache bw/limited extension) - This status code, while used by many servers, is not specified in any RFCs.
510 Not Extended
ErrorDocument Not Extended | Sample 510 Not Extended
(RFC 2774 ) - Further extensions to the request are required for the server to fulfil it.
1xx Info / Informational
HTTP_INFO - Request received, continuing process. Indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line.
100 Continue - HTTP_CONTINUE
101 Switching Protocols - HTTP_SWITCHING_PROTOCOLS
102 Processing - HTTP_PROCESSING
2xx Success / OK
HTTP_SUCCESS - The action was successfully received, understood, and accepted. Indicates that the client's request was successfully received, understood, and accepted.
200 OK - HTTP_OK
201 Created - HTTP_CREATED
202 Accepted - HTTP_ACCEPTED
203 Non-Authoritative Information - HTTP_NON_AUTHORITATIVE
204 No Content - HTTP_NO_CONTENT
205 Reset Content - HTTP_RESET_CONTENT
206 Partial Content - HTTP_PARTIAL_CONTENT
207 Multi-Status - HTTP_MULTI_STATUS
3xx Redirect
HTTP_REDIRECT - The client must take additional action to complete the request. Indicates that further action needs to be taken by the user-agent in order to fulfill the request. The action required may be carried out by the user agent without interaction with the user if and only if the method used in the second request is GET or HEAD. A user agent should not automatically redirect a request more than 5 times, since such redirections usually indicate an infinite loop.
300 Multiple Choices - HTTP_MULTIPLE_CHOICES
301 Moved Permanently - HTTP_MOVED_PERMANENTLY
302 Found - HTTP_MOVED_TEMPORARILY
303 See Other - HTTP_SEE_OTHER
304 Not Modified - HTTP_NOT_MODIFIED
305 Use Proxy - HTTP_USE_PROXY
306 unused - UNUSED
307 Temporary Redirect - HTTP_TEMPORARY_REDIRECT
4xx Client Error
HTTP_CLIENT_ERROR - The request contains bad syntax or cannot be fulfilled. Indicates case where client seems to have erred. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.
400 Bad Request - HTTP_BAD_REQUEST
401 Authorization Required - HTTP_UNAUTHORIZED
402 Payment Required - HTTP_PAYMENT_REQUIRED
403 Forbidden - HTTP_FORBIDDEN
404 Not Found - HTTP_NOT_FOUND
405 Method Not Allowed - HTTP_METHOD_NOT_ALLOWED
406 Not Acceptable - HTTP_NOT_ACCEPTABLE
407 Proxy Authentication Required - HTTP_PROXY_AUTHENTICATION_REQUIRED
408 Request Time-out - HTTP_REQUEST_TIME_OUT
409 Conflict - HTTP_CONFLICT
410 Gone - HTTP_GONE
411 Length Required - HTTP_LENGTH_REQUIRED
412 Precondition Failed - HTTP_PRECONDITION_FAILED
413 Request Entity Too Large - HTTP_REQUEST_ENTITY_TOO_LARGE
414 Request-URI Too Large - HTTP_REQUEST_URI_TOO_LARGE
415 Unsupported Media Type - HTTP_UNSUPPORTED_MEDIA_TYPE
416 Requested Range Not Satisfiable - HTTP_RANGE_NOT_SATISFIABLE
417 Expectation Failed - HTTP_EXPECTATION_FAILED
418 I'm a teapot - UNUSED
419 unused - UNUSED
420 unused - UNUSED
421 unused - UNUSED
422 Unprocessable Entity - HTTP_UNPROCESSABLE_ENTITY
423 Locked - HTTP_LOCKED
424 Failed Dependency - HTTP_FAILED_DEPENDENCY
425 No code - HTTP_NO_CODE
426 Upgrade Required - HTTP_UPGRADE_REQUIRED
5xx Server Error
HTTP_SERVER_ERROR - The server failed to fulfill an apparently valid request. Indicate cases in which the server is aware that it has erred or is incapable of performing the request. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. User agents should display any included entity to the user. These response codes are applicable to any request method.
500 Internal Server Error - HTTP_INTERNAL_SERVER_ERROR
501 Method Not Implemented - HTTP_NOT_IMPLEMENTED
502 Bad Gateway - HTTP_BAD_GATEWAY
503 Service Temporarily Unavailable - HTTP_SERVICE_UNAVAILABLE
504 Gateway Time-out - HTTP_GATEWAY_TIME_OUT
505 HTTP Version Not Supported - HTTP_VERSION_NOT_SUPPORTED
506 Variant Also Negotiates - HTTP_VARIANT_ALSO_VARIES
507 Insufficient Storage - HTTP_INSUFFICIENT_STORAGE
508 unused - UNUSED
509 unused - UNUSED
510 Not Extended - HTTP_NOT_EXTENDED
57 APACHE HTTP STATUS RESPONSE CODES
Once I compiled the list of Apache recognized HTTP Status Codes, I was dying to see them all in action (i.e. the corresponding ErrorDocument). At first I thought I would have to create a php or perl script emulating each of the 57 HTTP Status Codes, a tedious undertaking I wasn't about to do. Instead I "asked Apache" by searching the Apache HTTP Documentation for ambiguity sending Status Codes and/or triggering ErrorDocuments with an Apache Directive.
While reading up on mod_alias and the Redirect directive I found:
Apache Docs
Syntax: Redirect [status] URL-path URL The status argument can be used to return other HTTP status codes. Other status codes can be returned by giving the numeric status code as the value of status. If the status is between 300 and 399, the URL argument must be present, otherwise it must be omitted.
100 Continue
ErrorDocument Continue | Sample 100 Continue
This means that the server has received the request headers, and that the client should proceed to send the request body (in case of a request which needs to be sent; for example, a POST request). If the request body is large, sending it to a server when a request has already been rejected based upon inappropriate headers is inefficient. To have a server check if the request could be accepted based on the requests headers alone, a client must send Expect: 100-continue as a header in its initial request (see RFC 2616 14.20 Expect header) and check if a 100 Continue status code is received in response before continuing (or receive 417 Expectation Failed and not continue).
101 Switching Protocols
ErrorDocument Switching Protocols | Sample 101 Switching Protocols
This means the requester has asked the server to switch protocols and the server is acknowledging that it will do so.[3]
102 Processing
ErrorDocument Processing | Sample 102 Processing
(WebDAV) - (RFC 2518 )
200 OK
ErrorDocument OK | Sample 200 OK
Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request the response will contain an entity describing or containing the result of the action.
201 Created
ErrorDocument Created | Sample 201 Created
The request has been fulfilled and resulted in a new resource being created.
202 Accepted
ErrorDocument Accepted | Sample 202 Accepted
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.
203 Non-Authoritative Information
ErrorDocument Non-Authoritative Information | Sample 203 Non-Authoritative Information
The server successfully processed the request, but is returning information that may be from another source.
204 No Content
ErrorDocument No Content | Sample 204 No Content
The server successfully processed the request, but is not returning any content.
205 Reset Content
ErrorDocument Reset Content | Sample 205 Reset Content
The server successfully processed the request, but is not returning any content. Unlike a 204 response, this response requires that the requester reset the document view.
206 Partial Content
ErrorDocument Partial Content | Sample 206 Partial Content
The server is delivering only part of the resource due to a range header sent by the client. This is used by tools like wget to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.
207 Multi-Status
ErrorDocument Multi-Status | Sample 207 Multi-Status
(WebDAV) - The message body that follows is an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.
226 IM Used
ErrorDocument IM Used | Sample 226 IM Used
The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance. The actual current instance might not be available except by combining this response with other previous or future responses, as appropriate for the specific instance-manipulation(s).
300 Multiple Choices
ErrorDocument Multiple Choices | Sample 300 Multiple Choices
Indicates multiple options for the resource that the client may follow. It, for instance, could be used to present different format options for video, list files with different extensions, or word sense disambiguation.
301 Moved Permanently
ErrorDocument Moved Permanently | Sample 301 Moved Permanently
This and all future requests should be directed to the given URI.
302 Found
ErrorDocument Found | Sample 302 Found
This is the most popular redirect code[citation needed], but also an example of industrial practice contradicting the standard. HTTP/1.0 specification (RFC 1945 ) required the client to perform a temporary redirect (the original describing phrase was "Moved Temporarily"), but popular browsers implemented it as a 303 See Other. Therefore, HTTP/1.1 added status codes 303 and 307 to disambiguate between the two behaviours. However, the majority of Web applications and frameworks still use the 302 status code as if it were the 303.
303 See Other
ErrorDocument See Other | Sample 303 See Other
The response to the request can be found under another URI using a GET method. When received in response to a PUT, it should be assumed that the server has received the data and the redirect should be issued with a separate GET message.
304 Not Modified
ErrorDocument Not Modified | Sample 304 Not Modified
Indicates the resource has not been modified since last requested. Typically, the HTTP client provides a header like the If-Modified-Since header to provide a time against which to compare. Utilizing this saves bandwidth and reprocessing on both the server and client, as only the header data must be sent and received in comparison to the entirety of the page being re-processed by the server, then resent using more bandwidth of the server and client.
305 Use Proxy
ErrorDocument Use Proxy | Sample 305 Use Proxy
Many HTTP clients (such as Mozilla[4] and Internet Explorer) do not correctly handle responses with this status code, primarily for security reasons.
306 Switch Proxy
ErrorDocument Switch Proxy | Sample 306 Switch Proxy
No longer used.
307 Temporary Redirect
ErrorDocument Temporary Redirect | Sample 307 Temporary Redirect
In this occasion, the request should be repeated with another URI, but future requests can still use the original URI. In contrast to 303, the request method should not be changed when reissuing the original request. For instance, a POST request must be repeated using another POST request.
400 Bad Request
ErrorDocument Bad Request | Sample 400 Bad Request
The request contains bad syntax or cannot be fulfilled.
401 Unauthorized
ErrorDocument Unauthorized | Sample 401 Unauthorized
Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication.
402 Payment Required
ErrorDocument Payment Required | Sample 402 Payment Required
The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, but that has not happened, and this code has never been used.
403 Forbidden
ErrorDocument Forbidden | Sample 403 Forbidden
The request was a legal request, but the server is refusing to respond to it. Unlike a 401 Unauthorized response, authenticating will make no difference.
404 Not Found
ErrorDocument Not Found | Sample 404 Not Found
The requested resource could not be found but may be available again in the future. Subsequent requests by the client are permissible.
405 Method Not Allowed
ErrorDocument Method Not Allowed | Sample 405 Method Not Allowed
A request was made of a resource using a request method not supported by that resource; for example, using GET on a form which requires data to be presented via POST, or using PUT on a read-only resource.
406 Not Acceptable
ErrorDocument Not Acceptable | Sample 406 Not Acceptable
The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.
407 Proxy Authentication Required
ErrorDocument Proxy Authentication Required | Sample 407 Proxy Authentication Required
Required
408 Request Timeout
ErrorDocument Request Timeout | Sample 408 Request Timeout
The server timed out waiting for the request.
409 Conflict
ErrorDocument Conflict | Sample 409 Conflict
Indicates that the request could not be processed because of conflict in the request, such as an edit conflict.
410 Gone
ErrorDocument Gone | Sample 410 Gone
Indicates that the resource requested is no longer available and will not be available again. This should be used when a resource has been intentionally removed; however, it is not necessary to return this code and a 404 Not Found can be issued instead. Upon receiving a 410 status code, the client should not request the resource again in the future. Clients such as search engines should remove the resource from their indexes.
411 Length Required
ErrorDocument Length Required | Sample 411 Length Required
The request did not specify the length of its content, which is required by the requested resource.
412 Precondition Failed
ErrorDocument Precondition Failed | Sample 412 Precondition Failed
The server does not meet one of the preconditions that the requester put on the request.
413 Request Entity Too Large
ErrorDocument Request Entity Too Large | Sample 413 Request Entity Too Large
The request is larger than the server is willing or able to process.
414 Request-URI Too Long
ErrorDocument Request-URI Too Long | Sample 414 Request-URI Too Long
The URI provided was too long for the server to process.
415 Unsupported Media Type
ErrorDocument Unsupported Media Type | Sample 415 Unsupported Media Type
The request did not specify any media types that the server or resource supports. For example the client specified that an image resource should be served as image/svg+xml, but the server cannot find a matching version of the image.
416 Requested Range Not Satisfiable
ErrorDocument Requested Range Not Satisfiable | Sample 416 Requested Range Not Satisfiable
The client has asked for a portion of the file, but the server cannot supply that portion (for example, if the client asked for a part of the file that lies beyond the end of the file).
417 Expectation Failed
ErrorDocument Expectation Failed | Sample 417 Expectation Failed
The server cannot meet the requirements of the Expect request-header field.
418 I'm a teapot
ErrorDocument I'm a teapot | Sample 418 I'm a teapot
The HTCPCP server is a teapot. The responding entity MAY be short and stout. Defined by the April Fools specification RFC 2324. See Hyper Text Coffee Pot Control Protocol for more information.
422 Unprocessable Entity
ErrorDocument Unprocessable Entity | Sample 422 Unprocessable Entity
(WebDAV) (RFC 4918 ) - The request was well-formed but was unable to be followed due to semantic errors.
423 Locked
ErrorDocument Locked | Sample 423 Locked
(WebDAV) (RFC 4918 ) - The resource that is being accessed is locked
424 Failed Dependency
ErrorDocument Failed Dependency | Sample 424 Failed Dependency
(WebDAV) (RFC 4918 ) - The request failed due to failure of a previous request (e.g. a PROPPATCH).
425 Unordered Collection
ErrorDocument Unordered Collection | Sample 425 Unordered Collection
Defined in drafts of WebDav Advanced Collections, but not present in "Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol" (RFC 3648).
426 Upgrade Required
ErrorDocument Upgrade Required | Sample 426 Upgrade Required
(RFC 2817 ) - The client should switch to TLS/1.0.
449 Retry With
ErrorDocument Retry With | Sample 449 Retry With
A Microsoft extension. The request should be retried after doing the appropriate action.
500 Internal Server Error
ErrorDocument Internal Server Error | Sample 500 Internal Server Error
A generic error message, given when no more specific message is suitable.
501 Not Implemented
ErrorDocument Not Implemented | Sample 501 Not Implemented
The server either does not recognise the request method, or it lacks the ability to fulfil the request.
502 Bad Gateway
ErrorDocument Bad Gateway | Sample 502 Bad Gateway
The server was acting as a gateway or proxy and received an invalid response from the upstream server.
503 Service Unavailable
ErrorDocument Service Unavailable | Sample 503 Service Unavailable
The server is currently unavailable (because it is overloaded or down for maintenance). Generally, this is a temporary state.
504 Gateway Timeout
ErrorDocument Gateway Timeout | Sample 504 Gateway Timeout
The server was acting as a gateway or proxy and did not receive a timely request from the upstream server.
505 HTTP Version Not Supported
ErrorDocument HTTP Version Not Supported | Sample 505 HTTP Version Not Supported
The server does not support the HTTP protocol version used in the request.
506 Variant Also Negotiates
ErrorDocument Variant Also Negotiates | Sample 506 Variant Also Negotiates
(RFC 2295 ) - Transparent content negotiation for the request, results in a circular reference.
507 Insufficient Storage
ErrorDocument Insufficient Storage | Sample 507 Insufficient Storage
(WebDAV) (RFC 4918 )
509 Bandwidth Limit Exceeded
ErrorDocument Bandwidth Limit Exceeded | Sample 509 Bandwidth Limit Exceeded
(Apache bw/limited extension) - This status code, while used by many servers, is not specified in any RFCs.
510 Not Extended
ErrorDocument Not Extended | Sample 510 Not Extended
(RFC 2774 ) - Further extensions to the request are required for the server to fulfil it.
1xx Info / Informational
HTTP_INFO - Request received, continuing process. Indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line.
100 Continue - HTTP_CONTINUE
101 Switching Protocols - HTTP_SWITCHING_PROTOCOLS
102 Processing - HTTP_PROCESSING
2xx Success / OK
HTTP_SUCCESS - The action was successfully received, understood, and accepted. Indicates that the client's request was successfully received, understood, and accepted.
200 OK - HTTP_OK
201 Created - HTTP_CREATED
202 Accepted - HTTP_ACCEPTED
203 Non-Authoritative Information - HTTP_NON_AUTHORITATIVE
204 No Content - HTTP_NO_CONTENT
205 Reset Content - HTTP_RESET_CONTENT
206 Partial Content - HTTP_PARTIAL_CONTENT
207 Multi-Status - HTTP_MULTI_STATUS
3xx Redirect
HTTP_REDIRECT - The client must take additional action to complete the request. Indicates that further action needs to be taken by the user-agent in order to fulfill the request. The action required may be carried out by the user agent without interaction with the user if and only if the method used in the second request is GET or HEAD. A user agent should not automatically redirect a request more than 5 times, since such redirections usually indicate an infinite loop.
300 Multiple Choices - HTTP_MULTIPLE_CHOICES
301 Moved Permanently - HTTP_MOVED_PERMANENTLY
302 Found - HTTP_MOVED_TEMPORARILY
303 See Other - HTTP_SEE_OTHER
304 Not Modified - HTTP_NOT_MODIFIED
305 Use Proxy - HTTP_USE_PROXY
306 unused - UNUSED
307 Temporary Redirect - HTTP_TEMPORARY_REDIRECT
4xx Client Error
HTTP_CLIENT_ERROR - The request contains bad syntax or cannot be fulfilled. Indicates case where client seems to have erred. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.
400 Bad Request - HTTP_BAD_REQUEST
401 Authorization Required - HTTP_UNAUTHORIZED
402 Payment Required - HTTP_PAYMENT_REQUIRED
403 Forbidden - HTTP_FORBIDDEN
404 Not Found - HTTP_NOT_FOUND
405 Method Not Allowed - HTTP_METHOD_NOT_ALLOWED
406 Not Acceptable - HTTP_NOT_ACCEPTABLE
407 Proxy Authentication Required - HTTP_PROXY_AUTHENTICATION_REQUIRED
408 Request Time-out - HTTP_REQUEST_TIME_OUT
409 Conflict - HTTP_CONFLICT
410 Gone - HTTP_GONE
411 Length Required - HTTP_LENGTH_REQUIRED
412 Precondition Failed - HTTP_PRECONDITION_FAILED
413 Request Entity Too Large - HTTP_REQUEST_ENTITY_TOO_LARGE
414 Request-URI Too Large - HTTP_REQUEST_URI_TOO_LARGE
415 Unsupported Media Type - HTTP_UNSUPPORTED_MEDIA_TYPE
416 Requested Range Not Satisfiable - HTTP_RANGE_NOT_SATISFIABLE
417 Expectation Failed - HTTP_EXPECTATION_FAILED
418 I'm a teapot - UNUSED
419 unused - UNUSED
420 unused - UNUSED
421 unused - UNUSED
422 Unprocessable Entity - HTTP_UNPROCESSABLE_ENTITY
423 Locked - HTTP_LOCKED
424 Failed Dependency - HTTP_FAILED_DEPENDENCY
425 No code - HTTP_NO_CODE
426 Upgrade Required - HTTP_UPGRADE_REQUIRED
5xx Server Error
HTTP_SERVER_ERROR - The server failed to fulfill an apparently valid request. Indicate cases in which the server is aware that it has erred or is incapable of performing the request. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. User agents should display any included entity to the user. These response codes are applicable to any request method.
500 Internal Server Error - HTTP_INTERNAL_SERVER_ERROR
501 Method Not Implemented - HTTP_NOT_IMPLEMENTED
502 Bad Gateway - HTTP_BAD_GATEWAY
503 Service Temporarily Unavailable - HTTP_SERVICE_UNAVAILABLE
504 Gateway Time-out - HTTP_GATEWAY_TIME_OUT
505 HTTP Version Not Supported - HTTP_VERSION_NOT_SUPPORTED
506 Variant Also Negotiates - HTTP_VARIANT_ALSO_VARIES
507 Insufficient Storage - HTTP_INSUFFICIENT_STORAGE
508 unused - UNUSED
509 unused - UNUSED
510 Not Extended - HTTP_NOT_EXTENDED