NOT KNOWN FACTS ABOUT SPAM LINK

Quite a few nofollow links with a web page could be a indicator of link spamming. Some automated link building applications will use randomized nofollow links to attempt to improve the web site’s backlink profile even though slipping by Google’s spam detectors.Right now, some less experienced SEOs however believe that aged-college link spamming

Also, nofollow links haven't any link juice, and thus they don’t go PageRank. So even when no-follows aren’t picked up as spam, they still aren’t contributing to your SERP rank. Search engines like yahoo watch link farms as being a blatant sort of link spam and will penalize Internet sites that get involved in this kind of techniques.A spam