What is the difference between ‘nofollow’ and ‘dofollow’ link?

[pharmasecure]

What is the difference between ‘nofollow’ and ‘dofollow’ link?

 

[seo.svlapp]

Dofollow links in their algorithm. In fact, according to Google, nofollow links don't pass any PageRank. Google does not transfer PageRank or anchor text across these links.

 

[Goyums]

No follow means google will not index that link and link content. In Dofollow google will index that link and will index link content

 

[RH-Calvin]

Do follow and no follow are link attributes and contain instructions for search engine robots. Do follow links are crawled and indexed in search engines whereas no follow links are never crawled and indexed in search engines.

 

[dombowkett]

Search Engine index only do-follow backlinks while not no-follow links.