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copied!<p>A <strong><a href="http://en.wikipedia.org/wiki/URL_redirection" rel="nofollow noreferrer">redirect</a></strong> is a response that is given by a webserver, that asks the user agent to not show the response body, but instead request a different resource.</p> <p>The HTTP protocol provides 2 methods of redirection, a <code>302</code> temporary redirect and a <code>301</code> permanent redirect. There are some more 300 status codes you can find a complete list <strong><a href="http://en.wikipedia.org/wiki/List_of_HTTP_status_codes" rel="nofollow noreferrer">here</a></strong>. User agents and clients must adjust accordingly when a 301 redirect is given so that future requests for the same URL won't be requested in favor of the permanent redirect.</p> <p>A redirect in HTTP is used for various purposes:</p> <ul> <li>To perform load balancing.</li> <li>As part of the <a href="/questions/tagged/post-redirect-get" class="post-tag" title="show questions tagged 'post-redirect-get'" rel="tag">post-redirect-get</a> pattern.</li> </ul> <p>Redirection can also be perform on the client-side using a client-side scripting language (<a href="/questions/tagged/javascript" class="post-tag" title="show questions tagged 'javascript'" rel="tag">javascript</a>) without any server intervention.</p> <p>Javascript code for redirection:</p> <pre><code>window.location.assign("url"); </code></pre> <p><hr> Server-side languages such as PHP can edit the HTTP headers to create a redirect. In PHP:</p> <pre><code>header('Location: redirectedTo.php', TRUE, 301); </code></pre>

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