Http Error Codes 301
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Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e The HTTP response status http code 302 code 301 Moved Permanently is used for permanent URL redirection, meaning current http status code links or records using the URL that the response is received for should be updated. The new URL should 301 moved permanently nginx be provided in the Location field included with the response. The 301 redirect is considered a best practice for upgrading users from HTTP to HTTPS.[1] RFC 2616 states that: If
Http Status Codes Cheat Sheet
a client has link-editing capabilities, it should update all references to the Request URL. The response is cachable.[2] Unless the request method was HEAD, the entity should contain a small hypertext note with a hyperlink to the new URL(s). If the 301 status code is received in response to a request of any type other than GET or HEAD, the client http response example must ask the user before redirecting. Contents 1 Example 1.1 Search engines 2 See also 3 References Example[edit] Client request: GET /index.php HTTP/1.1 Host: www.example.org Server response: HTTP/1.1 301 Moved Permanently Location: http://www.example.org/index.asp Here is an example using an htaccess file to redirect to a non www with an SSL attached to the domain. 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. location /old/url/ { return 301 /new/url; } Search engines[edit] Both Bing and Google recommend using a 301 redirect to change the URL of a page as it is shown in search engine results.[3][4] See also[edit] Hypertext Transfer Protocol List of HTTP status codes References[edit] ^ "Secure your site with HTTPS". support.google.com. Google. Retrieved 6 February 2016. ^ How long do browsers cache HTTP 301s? - https://stackoverflow.com/questions/9130422/how-long-do-browsers-cache-http-301s ^ Site Move Tool -
referer DNT X-Forwarded-For Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e This is a list of Hypertext Transfer Protocol (HTTP) response status codes. It includes codes from IETF 301 moved permanently curl internet standards, other IETF RFCs, other specifications, and some additional commonly used codes. The first
Http 422
digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum. The
Http 403
phrases used are the standard wordings, but any human-readable alternative can be provided. Unless otherwise stated, the status code is part of the HTTP/1.1 standard (RFC 7231).[1] The Internet Assigned Numbers Authority (IANA) maintains the official registry of https://en.wikipedia.org/wiki/HTTP_301 HTTP status codes.[2] Microsoft IIS sometimes uses additional decimal sub-codes to provide more specific information,[3] but not all of those are here (note that these sub-codes only appear in the response payload and in documentation; not in the place of an actual HTTP status code). Contents 1 1xx Informational 2 2xx Success 3 3xx Redirection 4 4xx Client Error 5 5xx Server Error 6 Unofficial codes 6.1 Internet Information Services 6.2 nginx 6.3 Cloudflare 7 See also https://en.wikipedia.org/wiki/List_of_HTTP_status_codes 8 Notes 9 References 10 External links 1xx Informational[edit] Request received, continuing process. This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. Since HTTP/1.0 did not define any 1xx status codes, servers must not[note 1] send a 1xx response to an HTTP/1.0 client except under experimental conditions.[4] 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. To have a server check the request's headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. The response 417 Expectation Failed indicates the request should not be continued.[2] 101 Switching Protocols The requester has asked the server to switch protocols and the server has agreed to do so.[5] 102 Processing (WebDAV; RFC 2518) A WebDAV request may contain many sub-requests involving file operations, requiring a long time to complete the request. This code indicates that the server has received and is processing the request, but no response is available yet.[6] This prev
- general The 301 response from the Web server should always include an alternative URL to which redirection should occur. If it does, a Web http://www.checkupdown.com/status/E301.html browser will immediately retry the alternative URL. So you never actually see a 301 error in a Web browser, unless perhaps you have a corrupt redirection chain e.g. URL A redirects to URL B which in turn redirects back to URL A. If your client is not a Web browser, it should behave in the same way as a Web browser i.e. http status immediately retry the alternative URL. If the Web server does not return an alternative URL with the 301 response, then either the Web server software itself is defective or the Webmaster has not set up the URL redirection correctly. Fixing 301 errors - CheckUpDown Redirection of URLs may occur for low-level URLs (specific URLs within the Web site such as www.isp.com/products/index.html) when http status code you reorganise the web site, but is relatively uncommon for top-level URLs (such as www.isp.com) which most users specify for their CheckUpDown accounts. So this error should be fairly infrequent. The 301 response from the Web server should always include an alternative URL to which redirection should occur. If it does, CheckUpDown automatically tries the alternative URL. This in turn may possibly lead to another redirection which CheckUpDown then tries. This continues for a maximum of 5 redirections. As soon as 5 redirections have occurred, CheckUpDown gives up and reports the 301 error for your account. So you should only ever see the 301 error if 1) the Web server gives no alternative URL on the 301 response or 2) the number of redirections exceeds 5. This second condition should be fairly unlikely - and may indicate a recursive pattern e.g. URL A redirects to URL B which in turn redirects back to URL A. You first need to check that the IP name we use to check for your account is accurate. If you or your ISP have configured something so that any ac