Html 301 Error Code
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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 code
301 Moved Permanently Nginx
301 Moved Permanently is used for permanent URL redirection, meaning current links 301 moved permanently curl or records using the URL that the response is received for should be updated. The new URL should be
Http 301 Vs 302
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 a client http code 302 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 must ask the 301 redirect htaccess 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 - Bing Webmaster Help & How-to - https://www.bing.com/webmaster/help/how-to-use-
- general The 301 response from the Web server should always include an alternative URL to which redirection should occur. If it does, a Web
How To Do A 301 Redirect
browser will immediately retry the alternative URL. So you never actually see 301 moved permanently error a 301 error in a Web browser, unless perhaps you have a corrupt redirection chain e.g. URL A redirects
301 Redirect Php
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. https://en.wikipedia.org/wiki/HTTP_301 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://www.checkupdown.com/status/E301.html 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
is used to indicate that a page has permanently moved. Multiple techniques are presented with http://www.somacon.com/p145.php recommendations. In order to redirect an out-of-print web page to another http://stackoverflow.com/questions/1393280/http-redirect-301-permanent-vs-302-temporary location, return the HTTP 301 status code and a location header in the HTTP response of the deprecated web page. The HTTP 301 response code will tell user-agents that the location has permanently moved. This is particularly useful for search engines like Google, 301 moved which will carry over page rank to the new page if this status code is seen. If you do not need to indicate permanent displacement, you can accomplish redirection by setting a Location header in PHP or using Response.Redirect in ASP. The location header does the actual redirection to the new location, and can be 301 moved permanently used by itself. HTTP headers are sent for every web page. If you want to see what HTTP headers look like for a particular page, visit Rex Swain's HTTP Viewer. For advanced users, I would recommend you download the Firefox web browser and install Chris Pederick's Web Developer Extensions. Then, use the Information->View Response Headers function. In scripts, HTTP headers must be sent before sending any page content, including white space, or else an error will result. HTTP 301 Redirect in ASP-VBScript <%@ Language=VBScript %> <% ' Permanent redirection Response.Status = "301 Moved Permanently" Response.AddHeader "Location", "http://www.somacon.com/" Response.End %> In Active Server Pages (ASP), Response.Redirect does not work the same as the code shown in the example. Response.Redirect will set the location header as shown, but it will set the status code to HTTP/1.1 302 Object moved instead. When you set the Location header with Response.AddHeader, the status code must be manually defined, otherwise it stays 200 OK. If you send any p
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up HTTP redirect: 301 (permanent) vs. 302 (temporary) up vote 241 down vote favorite 48 Is the client supposed to behave differently? How? http redirect http-status-code-301 http-status-code-302 share|improve this question edited Aug 13 '13 at 15:44 mikemaccana 22k21140201 asked Sep 8 '09 at 10:47 flybywire 64.8k145335457 RFC 2616 - HTTP Status Codes I could repeat everything in there, but it states it quite clearly ;) –Tiemen Sep 8 '09 at 10:54 add a comment| 6 Answers 6 active oldest votes up vote 402 down vote accepted Status 301 means that the resource (page) is moved permanently to a new location. The client/browser should not attempt to request the original location but use the new location from now on. Status 302 means that the resource is temporarily located somewhere else, and the client/browser should continue requesting the original url. share|improve this answer edited Sep 8 '09 at 11:05 answered Sep 8 '09 at 10:51 Philippe Leybaert 99k23173203 64 +1 for being simple and clear and not just reiterating the RFC –David Z Sep 8 '09 at 11:02 7 Thank you. Does this mean that if I use a 301 (permanent) redirect, the client can decide to never again retrieve the old location and instead always use directly the new URL? –fl