Redirect

A method of alerting browsers and search engines that a page location moved. 301 redirects are for permanent change of location and 302 redirects are used for a temporary change of location.

where the Internet user is automatically taken to another web page address without him/her clicking on anything. Redirects are generally not good for search engine rankings, as they dilute PageRank. There is also the risk that the search engine spider will not follow your redirect.