The article which I want to rank on is on my website and I call that as main article. I made some tire 1 articles on different blogging platforms like wordpress, tumblr and so on. But those articles didn't proved helpful and none of them served as a backlink. So what should I do, so that those articles would actually serve as backlinks? And how many tire 1 articles should I upload for a main article so that Google will not get to know, that it is all done to rank that particular article on my website.