Help:Redirect
From Allotments4All
What is a redirect?
A redirect is a page with no other content than something of the form
#REDIRECT link in internal link style
If the link is to an existing page in the same project, going to the redirect (by means of a link, the URL, or the Go button) results in the new page, just like following the link, except that the browser shows the original URL, and the new page shows a redirection message below the title. (To get the canonical URL in your browser's address bar, click the article tab.)
For example, if somebody goes to: Help:Redirection, then they will end up at this page instead, and the top of the page will look like:
Help:Redirect<h1>
From Meta<h3>
(Redirected from Help:Redirection)(etc) </blockquote>
If the link is to a non-existing page in the same project, or to a page in another project, one simply arrives at the redirect page.
As a simple way to avoid problems with infinite recursion, if the redirect target is another redirect page, the second redirect is not applied.
When a page called for inclusion is a redirect page, the redirect target is included instead, with the same parameters, without any redirect message. Again, a double redirect does not work.