301 redirect it is through a variety of methods to various network request to set a direction to other locations. Such as: in the webpage redirection.
Domain redirection
The changes to the routing of data packets via a path is a redirection
In our website construction, webpage often encounter the need to redirect: like the site adjustment, such as directory structure change webpage, webpage is moved to a new address, or webpage, extension change, such as by the application need to . PHP to . Html or . Shtml, in this case, if not do the redirect user favorites, or a search engine database access only to the old address customer will get a 404 error pages of information, access to the flow of wasted; if some registers a plurality of domain name of the website, also need to access these domain names by redirecting the user automatically jump to the main site, etc..
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