What is the difference between do follow & no follow link?

#simple do follow pass pr and no follow will not pass pr page rank

Do-follow link is exactly the opposite of a nofollow link. It’s also a lot harder to get.

Dofollow link passed on google but nofollow link do not pass on google.

Do follow link could be pass link juice to other site and No follow link could not be a link that does not count as a purpose within the page's favor.

A no follow link could be a link that does not count as a purpose within the page's favor, does not boost Page Rank, and doesn't facilitate a page's placement in the SERPs. No follow links get no love. Theirs is a unhappy and lonely life. The no follow tag is basically a notice sign for search engines saying “don't count this.”

Nofollow is an HTML attribute value used to instruct search engines bots that a hyperlink should not influence the link target's ranking in the search engine's index.
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.
So “no follow” backlinks are not important in terms of search engines as it is not crawled. The comments section mostly have no follow links. But that does not mean that these links

Dofollow links allow google (all search engines) to follow them and reach our website. Giving us link juice and a backlink. If a webmaster is linking back to you with this link both Search Engine and Humans will be able to follow you. The best way to give someone dofollow love is allowing keyword in the anchor text. This means when you are linking to any website or page, use the targeted keyword as anchor text.

Nofollow links attributes do not allow search engine bots to follow link.That means

In do follow link juice of that website also pass in to your website and in no follow nothing will be pass.

In do follow links google crawls that link and in no follow link will not crawled by google.

Nofollow links attributes do not allow search engine bots to follow link.That means if the website owner is linking back to you with nofollow attributes, it does not pass on link juice. Only Humans will be able to follow the links. Though some time back Google made it clear that they don’t consider nofollow link attributes but weightage of such links are really less. Even though, it’s a good practice to use Nofollow link attribute to those link, where you don’t want to pass link-juice.

do follow links passes link guice to the domain it is pointing to, but do not follow doesn't pass any thing

A Do-Follow Link, as the name suggests, allows Google link calculator called PageRank to count all the inbound links from other web pages and websites as link points.
The higher the link juice or link points are, the greater would be the search ranking of that web page, as these links make the web page appear very relevant and popular to the Google search engines.

A No-Follow link is exactly the opposite of a Do-Follow link as such the link attributes do not allow the Google bots to follow them

Nofollow value is used to instruct search engines that a hyperlink should not influence the link target’s ranking in the search engine’s index. If you are linking to any website which is not of high value then use rel=”nofollow” attribute in your HTML of the webpage.

Dofollow value is used to instruct search engines that a hyperlink should influence the link target’s ranking in the search engine’s index to reach up to the desired website.

Nofollow is an HTML attribute value used to instruct search engines bots that a hyperlink should not influence the link target’s ranking in the search engine’s index. It is intended to reduce the effectiveness of certain types of search engine spam, thereby improving the quality of search engine results and preventing spamdexing from occurring in the first place. This is a concept introduced by Matt Cutts and Jason Shellen in the year 2005.
Dofollow links allow google (all search engines) to

Nofollow link attribute pass link-juice. Dofollow links allow google (all search engines) to follow them and reach our website

Nếu trang web của bạn liên kết tới 1 trang web kém chất lượng hoặc tới trang web đã bị penalty, web xấu.. thì trang web của bạn sẽ bị mất điểm và bị tụt hạng. Thuộc tính rel = "nofollow" là một cách để bạn thông báo cho robot của google biết là không đi theo liên kết này.

Ngược lại có nofollow là dofollow. Liên kết với thuộc tính DoFollow (hoặc đơn giản là không có nofollow) dùng để thôn

For this why u not go with harsh agrwal and nail patel descriptions

No. i dont think so. no follơ have crawled by search bot. you can see that through ahreft

Do follow is crawled by search engine's but no follow only give traffic.

Best answer i have ever see. @ Seema J. do follow & no follow link have diffirent about streng with google bot . but with human it seem seem, not much diffirent.