A nofollow link is an HTML attribute that can be added to a hyperlink to instruct search engines not to follow the link or to give it less weight in their ranking algorithms. Nofollow links are often used when linking to external websites or when linking to pages that the website owner does not want to endorse or be associated with.
The nofollow attribute is added to a hyperlink by including the attribute "rel=nofollow" in the anchor tag. For example:
Quote:
<a href="http://www.example.com" rel="nofollow">Link</a>
When a search engine encounters a nofollow link, it will not follow the link and will not pass any "link juice" or ranking power to the linked page. This can be useful for websites that want to link to external resources without endorsing them or for websites that want to prevent certain pages from receiving unnecessary link authority.