Hi, So I found a competitor site which is ranked for quite a few competitive KWs and I'm trying to understand how he got there. He just entered SERPs around a month ago and his backlink profile doesn't justify his SERPs. He bought quite a few links but not enough to be ranked so high on his KWs - wondering what else can I do to discover what he did. Everyone has been talking about 301 lately but I don't see how I can check if he has domains redirecting to him. Anyone knows how can I discover 301 domains which are being redirected to his main domain or what else I can do to discover how to got his rankings? Thanks!