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3.6 Redirections. Before a command is executed, its input and output may be redirected using a special notation interpreted by the shell. Redirection allows commands’ file handles to be duplicated, opened, closed, made to refer to different files, and can change the files the command reads from and writes to. Jan 12, 2021 Change page URLs with 301 redirects If you need to change the URL of a page as it is shown in search engine results, we recommend that you use a server-side 301 redirect. This is the best way to ensure that users and search engines are directed to the correct page. The redirects app¶ Django comes with an optional redirects application. It lets you store redirects in a database and handles the redirecting for you. It uses the HTTP response status code 301 Moved Permanently by default.
A redirect (abbreviation for redirection) is a server- or client-side automatic forwarding from one URL to another URL. Redirects are used for various purposes such as the relocation of a website to a new domain or server maintenance. Duplicate content can be avoided with a 301 redirect.
- 2Server-side redirects
- 3Client-side redirects
Background[edit]
A redirect is always automatic and is hardly perceived by a user. Particularly on the server side, automatic redirects are an ideal way to forward a user from one URL to another without affecting usability.
Server-side redirects[edit]
With this form of redirect, a corresponding command is entered in the htaccess file on the server (mostly with Apache-Servers). If the URL is called up, the server will immediately redirect to the new destination.
301 redirect[edit]
The 301 redirect should be used to permanently forward a URL. For example, a 301 redirect is ideal for relaunching a website, to redirect old URLs that are no longer valid to new URLs. The great advantage of the 301 redirect is that this redirect passes on nearly 100 percent of the link juice and gives a clear indication to search engines that the required resource can permanently be found on another URL.
301 redirects can be implemented either by changing the .htaccess file or using PHP.
This code is used for the .htaccess file:
If the 301 redirect is implemented using PHP, the code to be used should look like this. It is entered directly in the source code of the document to be redirected.
302 redirect[edit]
With the 302 redirect, pages were permanently redirected to the HTTP version 1.0. However, it was rumoured that this routing can not pass on the PageRank. Meanwhile, 302-redirects now also have full Link Power, as Google's John Müller indirectly confirmed in his Google+ Post.[1]. In version HTTP 1.1, the HTTP status code now simply says “found,” which means that the requested resource is available on the server.
307 redirect[edit]
The 307 redirect can be used to temporarily redirect a website. This is frequently done when a server is being serviced.
Redirects On Iphone
For this purpose, a php file is written in which a message for visitors to the site will be entered. This file is then stored in the root directory. Then a new .htaccess file needs to be created which is named htaccess.307.
One possible solution would look like this:
The server displays the Statuscode 307, and redirects the URL temporarily.
Client-side redirects[edit]
With client-side redirects, no changes have to made to the server because the redirects are stored directly in the source code of the page. Nevertheless, client-side redirects are not recommended for search engine optimization.
Meta refresh[edit]
This redirect is set up by placing a meta tag in the header of the HTML document.
This tag looks as follows:
A meta refresh is executed on the client, i.e. the browser. Although this form of redirect can be set up quickly, it has disadvantages in terms of SEO and usability.
Users have to wait several seconds before being redirected to the new page. Additionally, these redirects pass on link juice to the target page.
Redirects To Yahoo
Redirect via JavaScript[edit]
Redirects can also be implemented with JavaScript, but this is not recommended, as for this to work, a user's browser must have JavaScript enabled. Search engines also often interpret such redirects as cloaking or URL hijacking.
If a redirect is done using JavaScript, it looks like this.
Risks[edit]
With a client request, every redirect causes an additional step for the server. All redirects are written in htaccess data which have to be loaded new with every server. For this reason, webmasters and SEOs should not use unnecessary redirects, as they could limit the performance of the website.
Furthermore, redirect chains, where many redirects are connected to each other, should be avoided. If there are too many, Google will not be able to follow the redirects and the crawler will receive an error.
Benefits for SEO[edit]
A redirect is useful for search engine optimization in many ways.
- Dead links can be redirected to a new destination with a 301 or 302 redirect.
- With the permanent redirect to a URL, with www to the version without www or vice versa, duplicate content can be avoided.
- Users can be alerted to a server maintenance per 307 redirect, helping avoid a poor user experience.
- By using 301 redirects for the relaunch of a website, link juice loss can be avoided. At the same time, redirects prevents dead links from occurring.
- Using redirects means no PageRank is lost.[2]
- With a 301-redirect, websites can redirect from a protocol like http to https.
- In Affiliate marketing, tracking links can be redirected from the affiliate program to the actual landing page.
- With a permanent redirection, a website with geo-localization can be redirected automatically to the version with the appropriate language.
References[edit]
- ↑Planning on moving to https? Here are 13 FAQs plus.google.com Accessed on August 28, 2017
- ↑301 Redirects Rules Change: What You Need to Know for SEO moz.com Accessed on January 2, 2017
Web Links[edit]
Category
| Look up redirect, redirected, redirecting, redirection, or redirects in Wiktionary, the free dictionary. |
Redirect and its variants (e. g., redirection) may refer to:
Arts, entertainment, and media[edit]
- Redirect (Your Memorial album), 2012 Christian metal album
- Redirected (film), a 2014 action comedy film
Computing[edit]
- Redirect Message (ICMP), a mechanism for routers to convey routing information to hosts
- Redirection (computing), a capability of command-line interpreters
- URL redirection, a mechanism for making a web page available under more than one address
Law[edit]
- Redirect examination, a trial process in law
See also[edit]
