I was doing some research on a very active forum user over at DealerRefresh.com and I chose to do a Google search for his Twitter username in which the search results displayed his profile on the it.twitter.com sub-domain as you can see in this screenshot below: When I try to do a Google search for anyone else's username Google will display the root domain twitter.com as it should, however if I visit anyone's username while on the it.twitter.com domain then I just see the same page as I would on the main site. My questions: 1) How and why would Google index the it.twitter.com sub-domain for this user and no one else? 2) What is the it.twitter.com sub-domain for in the first place? This is just a curiosity post. Thanks for your help!
Interesting..but I don't know any detail about it...I'd like to know the further information and discussion...