I recently bought a domain which has never been used before - keyword1keyword2.net - to build a site around. However, I also bought keyword2keyword1.net and .org, which have both previously been registered, around 10 DA, 20 PA each. Sites were first registered around 3 years ago. Would I be better off starting my site with one of those already registered domains? I'm pretty sure the same person owned the sites before because there are about 20 backlinks for each of them, most of them are from the same websites. Is there a way to see if a newly registered domain is banned from Google? Also, if I'm better off starting fresh, would it help to point the other 2 domains to my main website?