URL redirection
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URL redirection is a technique on the world wide web for making a web page available under many URLs.
URL redirection may be used to redirect a URL to a page on the same web server, for example http://www.company.example/ may be the same as http://www.company.example/index.html.
Or it may be used to redirect a URL to a web page on another web server. This is typically used when virtual hosting is not available for some reason. For example, a customer of a web hosting company has a page at the URL http://www.hosting.example/~user/mybiz/ but wants to make that page available at the URL http://www.mybiz.example/. If the web hosting company does not offer virtual hosting, another company can provide a URL redirection service. (URL redirection is often called domain forwarding when used like this, but that term is misleading because the domain is not aliased in the Domain Name System; only the web pages at URLs using the domain are forwarded.)
URL redirection services exist to shorten long URLs. For example: