One of my projects got a major pagerank hit. We debugged to the depths. And there are so many variables, I'm not gonna get into that.
While trying to desperately restore our pagerank, I have debugged everything that I possible could. And today I found out, that Google has indexed our short-urls.
(Under short-urls I mean like: example.com/post-12-foo-foo-foo-foo-foo-very-lenghty-url and short it to exl.to/p12)
I have tried to put the short-url in the webmasters tools to deal with it, but I couldn't then. Because it was URL without any hosting behind it, just there for making URLS short to copy. It redirects only. But now, I see there is a way to do with CNAME, straight from the domain keeper.
Google has indexed everything, under that URL with the content. While I just recently added canonical-tag to show, how these pages should look like. So that means duplicated content? Which is bad right?
So, what is the method for this short-urls against double contenting? There is no robots.txt, so I cannot even block it. But how else to tell google, its the same site, don't index under these URL's and please, return my pagerank?