Can you differentiate ‘nofollow‘ and ‘dofollow‘

[virendra]

Nofollow link is exactly vice-versa of dofollow link. These are non-crawling link which is not passed by search engine bots and hence can’t be cached or indexed. It is obvious when we wish to prevent a link from crawling and indexing.

Dofollow link is a kind of hyperlink which says all search engine crawlers to pass through which also put an impact over page rank. When we opt to employ or attempt to achieve a dofollow link then it is counted by search engines and sits in the eye of Google, Bing, MSN, Yahoo etc. as a backlink for your website and enhances your site ranking.

[Chhaya]

A Nofollow link is a link that does not count as a point in the page’s favor, does not boost PageRank, and doesn’t help a page’s placement in the SERPs.
DoFollow links are links that count as points, pushing SEO link juice and boosting the page rank of the linked-to sites, helping them go higher in the SERPs as a result.