It can be a pain as you reorganize your site and try to get users to update their links.

 

Here's a handy way to do a redirect without editing anything server side.  Not that that's what you should do in SharePoint any way.  

 

 

Add this snip of code below to to the content editor web part in HTML view on the page you want to redirect from.  You will likely want to change the header bar to none to hide the web part as well.

 

Code Snip: Edit the URL and time as desired.

 

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<script language="JavaScript">
  function redirectAfterPause() {
    setTimeout("location.href='http://www.bing.com'", 15000);
  }
  _spBodyOnLoadFunctionNames.push("redirectAfterPause");
 </script>

 

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Note 5000=1 second.  Replace bing with your target URL.  Thanks Darin, not sure where you got this, but if you found this somewhere, thanks to that developer as well, and hope you don't mind me sharing it!

 

Note that _spBodyOnLoadFunctionNames is a native SharePoint Function.