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URL redirection, also known as URL forwarding, is a technique to give more than one URL address to a page, a form, or a whole Web site/application. Redirects accomplish numerous goals: Temporary redirects during site maintenance or downtime. Permanent redirections imply that the original URL should no longer be used, and replaced with the new one. Temporary redirections are also used when creating, updating, or deleting resources, to show temporary progress pages. HTTP redirects are the best way to create redirections, but sometimes you don't have control over the server.