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When doing internal linking back to your home/index page is it best to set the code as linked to "www.thedomain.com" or "www.thedomain.com/" or just "/" - I'm attempting some canonicalization and our programmer is concerned about linking to just the URL as he's saying it's going to be viewed as an external source.  We have www redirects in place that come back to just www.thedomain.com and a redirect to send the www.thedomain.com/index.php back to just www.thedomain.com .  Any help would be appreciated, thank you!