nofollow link is a link of one website on another website but that website tells search engines such as Google not to count that link when ranking the linked website. Links given in comments section of blogs are usually nofollow links.
no follow links seo value is none but they are good in at least generating traffic if use wisely (don’t spam). Opposite of nofollow link is dofollow link or backlink. See what is a backlink for more detail.
How to make a link nofollow is very simple, just add rel=”nofollow” in <a> html tag manually.
See nofollow link format: <a href=”http://www.example.com” rel=”nofollow”>Link Text</a>Woopoo's Tip