My website was removed off of google for DMCA copyright reasons, basically what I did to counteract this was I moved my website to a subdomain on the same URL so instead of www.mysite.com it's now www1.mysite.com and it ranks again. Every few weeks it gets DMCA'ed again and the website needs a new subdomain. Since this keeps happening, I'm unsure of where to build my backlinks to. Should I build them to the root domain mysite.com? or to the most current subdomain which is www6.mysite.com I just want to know the most effective way to pass link juice.