Search engines count every outgoing link as your vote to that site. Sometimes we like some sites and add their link to our sites to let our website visitors know about the cool products / service or free stuff available on the XYZ site.
However, people are allowed to put their website links on some blogs and forums, in this scenario, anyone can use your blog to get a link to their site. In other words they can make your site submit a vote to their site. In some cases it could be the site that is penalized by search engines. You surely don’t want to submit your vote towards that site!
The best approach to overcome this situation is to have “no follow” attribute in the link property so that search engines will not count these as outgoing links.
How to add the “no follow” attribute to link property?
Here is how your link property looks like
<a href=”http://www.not-good-website.com”> Website Designers </a>
Link with “no follow” attribute
<a href=”http://www.not-good-website.com” rel=”no follow”> Website Designers </a>