“Nofollow” links are primarly used to stop search engines from following a specific link. This means no link juice gets passed on. For instance if I implement a “no follow” link on my website it will prevent passing on pagerank to the destination link and it will prevent the destination link from being crawled by the search engines.
The amount of “nofollow” links on the web are only a small percentage compared to the total number. Google, Yahoo, and Bing all include nofollow links in their site backlink counts however they don’t show all the backlinks from your site.
How to implement the “Nofollow” Attribute?
