This attribute is used for paid links that people include in their content. This attribute tells Google’s spiders not to follow that link since outgoing links contribute to a website’s authority.
All you need to do is add the “no-follow” attribute within your href code.
Looks like this:
Now, to add the no-follow attribute, Just add the rel attribute before the first greater than (>) sign.
<a href=”http://google.com” rel=”nofollow”>Google</a>