differentiate between ‘nofollow’ and ‘dofollow’ link?

[Felix123]

Nofollow links are not passed by search engines bot and therefore cannot be cached or indexed. Dofollow link is a kind of hyperlink and it passes through all search engines and it puts an impact over page rank.

[amitkumar]

Nofollow backlinks are not followed by google. but do follow links are visited by google

[sinelogix]

Even though, it's a good practice to use Nofollow link attribute to those link, where you don't want to pass link-juice. Dofollow links allow google (all search engines) to follow them and reach our website. ... If a webmaster is linking back to you with this link both Search Engine and Humans will be able to follow you

[David910]

When Google bots are crawling a website they look for external links point to other websites. If this links is “do follow” then search engines will follows the link and so link juice gets passed.
If a search engine finds a “no follow” backlink it will just ignore the link and will not get deeper into crawling and no link juice is passed.

[vino]

Nofollow


Link which contain Rel=”nofollow” HTML attribute is nofollow the attribute simply assist search engines to know more about the link. Whenever you found a little piece of code in your link i.e. Rel=”nofollow” it mean that the link is nofollow and these types of links does not impact the authority nor help you out to Improve Seo ranking or visibility of your website.
Because rel nofollow tag is a noindex tag which has in fact a clear instruction for Search engines that do not try to index particular link.


By adding the above mentioned code for noindex crawlers simply ignore it and do not give any value nor pass link juice which cannot be prolific for batter ranking in search engines.


Dofollow


It is a type of link which has a potential to improve the ranking and the credibility of your website in Google. By default every link is dofollow, link which does not contain Rel=”Nofollow” Attribute is dofollow and these are considered to be the most powerful links for any websites.
These links allow search engine to doindex and pass link juice which is indeed the most ***** thing for webmasters.The credit goes to Google who introduces dofollow link in 2005 to deeply filter search engine results for spam indexing.

[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.

[ketul]

'Do follow' links are crawled by search engine bots and thus they contribute to website backlink building. 'No follow' links are never crawled by search engine spiders and hence they do not contribute to backlink building. Both types of links are used to build traffic for your website and helps in keyword ranking in search engines.

[chawong]

In SEO: Nofollow links are the links which never gets indexed or crawled by web crawler. Its good for traffic generation purpose. Dofollow links are the links which always gets indexed and crawled by web crawler and t increases link juice as well. It's good for SEO.

[giftsdaniel]

Nofollow link is not create link juice
Dofollow link is create link juice

[chiragpatel]

Useful information about nofollow and dofollow links. Thanks for sharing.

[garyyharmon]

Even though, it's a sound exercise to use No follow weblink feature to those weblink, where you don't want to move link-juice. Dofollow hyperlinks allow search engines (all look for engines) to adhere to them and achieve our website. ... If a website owner is backlinking to you with this weblink both Search Motor and People will be able to adhere to you