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Http Error Codes 301

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There is very little difference between a 302 status code and a 307 status code. 307 was created as another, less ambiguous, version of the 302 status code. Retrieved 16 October 2015. ^ "RFC2616 on status 416". If you're using this to temporarily redirect your domain to facebook as a coming soon page, you're basically screwed. *at least Chrome and Firefox, according to How long do browsers cache HTTP 301s?. If the 302 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. his comment is here

If the response is the result of an If-Range request that used a weak validator, the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. One of the headers sent to the server, the "Expect" header, indicated an expectation the server could not meet. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. If the 307 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. 10.4 Client Error 4xx The 4xx class of status code is intended for cases in which the client seems to have erred. https://en.wikipedia.org/wiki/HTTP_301

Http Code 302

A cache that does not support the Range and Content-Range headers MUST NOT cache 206 (Partial) responses. However, some Web applications and frameworks use the 302 status code as if it were the 303. 303 See Other The response to the request can be found under a different URI and SHOULD be retrieved using a GET method on that resource. Note: previous versions of this specification recommended a maximum of five redirections. This lookup (conversion of IP name to IP address) is provided by domain name servers (DNSs).

Wikipedia The URI provided was too long for the server to process. 415 Unsupported Media Type The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method. RewriteEngine On RewriteCond %{HTTPS} off RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC] RewriteRule ^(.*)$ http://%1/$1 [R=301,L] RewriteCond %{HTTPS} on RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC] RewriteRule ^(.*)$ https://%1/$1 [R=301,L] RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://example.com/$1 [R,L] Here is an example using a PHP redirect. Equivalently simple for an nginx configuration. Internet Information Services[edit] The Internet Information Services expands the 4xx error space to signal errors with the client's request. 440 Login Timeout The client's session has expired and must log in again.[70] 449 Retry With The server cannot honour the request because the user has not provided the required information.[71] 451 Redirect Used in Exchange ActiveSync when either a more efficient server is available or the server cannot access the users' mailbox.[72] The client is expected to re-run the HTTP AutoDiscover operation to find a more appropriate server.[73] nginx[edit] The nginx web server software expands the 4xx error space to signal issues with the client's request.[74][75] These are only used for logging purposes, no actual response is sent with these codes. 444 No Response Used to indicate that the server has returned no information to the client and closed the connection. 495 SSL Certificate Error An expansion of the 400 Bad Request response code, used when the client has provided an invalid client certificate. 496 SSL Certificate Required An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request Used when the client has closed the request before the server could send a response. Http Response Example Retrieved 16 October 2015. ^ Singh, Prabhat; user1740567. "Spring 3.x JSON status 406 "characteristics not acceptable according to the request "accept" headers ()"".

In that case, the Browser will notice the loop, and finally really request the entered URL. Http Status Code The server is indicating that it is unable or unwilling to complete the request using the same major version as the client, as described in section 3.1, other than with this error message. This response is primarily intended to allow input for actions to take place without causing a change to the user agent's active document view, although any new or updated metainformation SHOULD be applied to the document currently in the user agent's active view. https://en.wikipedia.org/wiki/List_of_HTTP_status_codes 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 is not usually used.

Wikipedia The client must first authenticate itself with the proxy. 408 Request Timeout The client did not produce a request within the time that the server was prepared to wait. 301 Moved Permanently Curl Retrieved 16 October 2015. ^ "Twitter Error Codes & Responses". This response MUST NOT use the multipart/byteranges content- type. 10.4.18 417 Expectation Failed The expectation given in an Expect request-header field (see section 14.20) could not be met by this server, or, if the server is a proxy, the server has unambiguous evidence that the request could not be met by the next-hop server. 10.5 Server Error 5xx Response status codes beginning with the digit "5" indicate cases in which the server is aware that it has erred or is incapable of performing the request. your Web browser or our CheckUpDown robot) goes through the following cycle when it communicates with the Web server: Obtain an IP address from the IP name of the site (the site URL without the leading 'http://').

Http Status Code

Previously called "Request Entity Too Large".[44] 414 URI Too Long (RFC 7231) The URI provided was too long for the server to process. http://www.checkupdown.com/status/E301.html The entity returned with this response SHOULD include an indication of the request's current status and either a pointer to a status monitor or some estimate of when the user can expect the request to be fulfilled. Http Code 302 For example, a POST request should be repeated using another POST request.[29] 308 Permanent Redirect (RFC 7538) The request and all future requests should be repeated using another URI. 307 and 308 parallel the behaviors of 302 and 301, but do not allow the HTTP method to change. 301 Moved Permanently Nginx This is virtually identical in meaning to a 200 status code.204 - No ContentThe 204 status code means that the request was received and understood, but that there is no need to send any data back.205 - Reset ContentThe 205 status code is a request from the server to the client to reset the document from which the original request was sent.

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. this content Google. 2014. The actual response will depend on the request method used. Unknown clients then have all traffic blocked, except for that on TCP port 80, which is sent to a HTTP server (the "login server") dedicated to "logging in" unknown clients, and of course traffic to the login server itself. Http Status Codes Cheat Sheet

DNS) it needed to access in attempting to complete the request. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two behaviours.[22] However, some Web applications and frameworks use the 302 status code as if it were the 303.[23] 303 See Other (since HTTP/1.1) The response to the request can be found under another URI using a GET method. The client MAY repeat the request without modifications at any later time." 409 Conflict The request could not be completed due to a conflict with the current state of the resource. http://orgias.org/http-status/http-error-codes-404-403.html Retrieved 16 October 2015. ^ "407".

It means that the server would like to shut down this unused connection. Http 422 Retrieved April 25, 2015. ^ Khare, R; Lawrence, S. "Upgrading to TLS Within HTTP/1.1". Note: HTTP/1.1 servers are allowed to return responses which are not acceptable according to the accept headers sent in the request.

Servers are not required to use the 431 status code; when under attack, it may be more appropriate to just drop connections, or take other steps.

Mostly 301 vs 302 is important for indexing in search engines as their crawlers take this in account and transfer pagerank when using 301. The recipient is expected to repeat this single request via the proxy. 305 responses MUST only be generated by origin servers. For example, the client uploads an image as image/svg+xml, but the server requires that images use a different format. 416 Requested Range Not Satisfiable A server SHOULD return a response with this status code if a request included a Range request-header field (section 14.35), and none of the range-specifier values in this field overlap the current extent of the selected resource, and the request did not include an If-Range request-header field. (For byte-ranges, this means that the first- byte-pos of all of the byte-range-spec values were greater than the current length of the selected resource.) When this status code is returned for a byte-range request, the response SHOULD include a Content-Range entity-header field specifying the current length of the selected resource (see section 14.16). Http 403 Since HTTP/1.1 304 Not Modified If the client has performed a conditional GET request and access is allowed, but the document has not been modified, the server SHOULD respond with this status code.

Why it Occurs If a client has link-editing capabilities, it should update all references to the Request URL. The new URI is not a substitute reference for the originally requested resource. This response code allows the client to place preconditions on the current resource metainformation (header field data) and thus prevent the requested method from being applied to a resource other than the one intended. check over here Wikipedia The server is currently unavailable (because it is overloaded or down for maintenance).

This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource. 10.5.3 502 Bad Gateway The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request. 10.5.4 503 Service Unavailable The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. Often the result of too much data being encoded as a query-string of a GET request, in which case it should be converted to a POST request.[45] Called "Request-URI Too Long" previously.[46] 415 Unsupported Media Type The request entity has a media type which the server or resource does not support. This prevents the client from timing out and assuming the request was lost. 2xx Success This class of status code indicates that the client's request was successfully received, understood, and accepted. The response MUST include the following header fields: Date, unless its omission is required by section 14.18.1 If a clockless origin server obeys these rules, and proxies and clients add their own Date to any response received without one (as already specified by [RFC 2068], section 14.19), caches will operate correctly.

The webmaster must also take care about the caching-related headers that are sent along with this response, as these temporary condition responses should usually not be cached. 504 Gateway Timeout This error response is given when the server is acting as a gateway and cannot get a response in time. 505 HTTP Version Not Supported The HTTP version used in the request is not supported by the server. 506 Variant Also Negotiates The server has an internal configuration error: transparent content negotiation for the request results in a circular reference. 507 Variant Also Negotiates The server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process. 511 Network Authentication Required The 511 status code indicates that the client needs to authenticate to gain network access. The response MAY include new or updated metainformation in the form of entity-headers, which if present SHOULD be associated with the requested variant. Retrieved 16 October 2015. ^ "diff --git a/linkchecker.module b/linkchecker.module". If the server does not wish to make this information available to the client, the status code 404 (Not Found) can be used instead.

A user agent may automatically redirect a request. The server will switch protocols to those defined by the response's Upgrade header field immediately after the empty line which terminates the 101 response. The implication is that this is a temporary condition which will be alleviated after some delay. Retrieved 16 October 2015. ^ "RFC7235 on code 401".

Originally meant "Subsequent requests should use the specified proxy."[28] 307 Temporary Redirect (since HTTP/1.1) In this case, the request should be repeated with another URI; however, future requests should still use the original URI. Wikipedia The request was well-formed but was unable to be followed due to semantic errors. 423 Locked (WebDAV) The 423 (Locked) status code means the source or destination resource of a method is locked. The first digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum. The different URI SHOULD be given by the Location field in the response.