Do follow is that which Link is a hyperlink that provides search engines to pass along then it's page rank affects to an outbound link.No follow Link is exactly the opposite to do follow. It is a hyperlink and it removes the ability to pass on it's page rank affects to the other sites .Nofollow links prevent search engines spiders to crawl the link. So, if you are getting a backlink from a nofollow site, it does not pass the link juice.
