What is Do follow and No Follow tags...

Dofollow Link is that the Dofollow Link has an extraordinary HTML Markup inside that advises the Search Engines like Google to FOLLOW the end inside the connection. Presently have in minded that utilizing this extraordinary markup or not will make the connection a Dofollow Link immediately.

Nofollow is a worth that could be relegated to the REL characteristic of a HTML a component to train some internet searchers that a hyperlink ought not to impact the connection target's standing in the web crawler file.

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Originally Posted by Rinks

Hello,

DO Follow link are followed by google crawler and nofollow are not.

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I think dude you have very big misunderstanding about do follow and no follow links both types of links are crawlable by Google but do follow links only have importance to get traffic and high PR.

Hello.............Do Follow 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. "Nofollow" provides a way for webmasters to tell search engines "Don't follow links on this page" or "Don't follow this specific link."

Originally, the nofollow attribute appeared in the page-level meta tag, and instructed search engines not to follow (i.e., crawl) any outgoing links on the page. For example:

<meta name="robots" content="nofollow" />

Do follow links are the links which generally crawled by search engine and the no follow are the links which does not crowl generally by the google or any other search engines.

a) DoFollow (we can use dofollow in following instances)

Refer to site having related content.
High quality websites (like Google blog)
Link to the original source (in case you have referred content)

b) NoFollow (we can use dofollow in following instances)

In comments section as we do not have any control on it (any spam website might write a comment which might affect your website)
Unrelated sites in content.
Casino, gambling, porn sites.
Affiliate Links (They are meant for linking and on sale basis commission, then why give them our link juice)

High page rank with Do follow link is very good for website ranking.

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Dofollow or nofollow both are very useful in SEO, there is no doubt to it really, if you are doing link building then you don't have to check nofollow or dofollow just keep building links and it would help a lot.

Do follow tags are those from where you get the PR juice and traffic but from no follow tags you will get only traffic , no PR juice. For a website both do follow and no follow tags are important as traffic must the priority.

Do-follow tags indicates Google crawler to index your page and no-follow vise-verso, but in SEO both are important no-follow links are useful for improve the ranking of keyword.

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Exactly no-follow is not as good as do-follow, but it is quite enough to improve keywords ranking.

flow of pagerank stopped by nofollow links on any webpage..

Do-Follow:
>Links that pass link weight to the targeted URL.
>Those links work to increase the authority of a website as well as increase the SERP and the page rank.
No-Follow:
>an HTML arttributes which is used to prevent a link from passing link authority.

nofollow is a value that can be assigned to the rel attribute of an HTML a ... page rank by total number of out going links irrespective of nofollow or follow links, but .. tags with obfuscated JavaScript code and thus permit PageRank sculpting.

Do follow is hyperlink inclusion that tells search engines to pass on any credibility or influence to an outbound link. When Google bot visits a website it reads website pages and includes links with do follow attribute and excludes link with no follow attribute.
Nofollow is html tag that website owners, add to links in their website for the search engines not to crawl, notice, or acknowledge a link. While a nofollow link is ignored, but popular social networking site like Twitter, Facebook, LinkedIn, Myspace sites are nofollow, but they do provide a lot of other benefits.