Welcome to the Q&A Forum

Hi all,We have a client from a very competitive industry (car insurance) that ranks first for almost every important and relevant keyword related to car insurance.
But they could always be doing a good job. A few days ago i found this: http://logo.force.com/ The competitor website is: http://www.logo.pt/ The competitor name is: Logo What I found strange is the fact that both websites are the same, except the fact that the first is in a sub-domain and have important links pointing to the original website (www.logo.pt) So my question is, is this a "google friendly" (and fair) technique? why this competitor has such good results? Thanks in advance!! I look forward to hearing from you guys