A backlink is any link received by a Website/Blog/Directory from another Website. Backlinks are the incoming links to a webpage. Backlinks are also Known as incoming links,inbound links,inlinks and inwardlinks. Backlinks are two types:

Dofollow Links Nofollow Links

A dofollow link will pass the SEO strength, or “PageRank” of the page to the outbound page it links to. DoFollow backlinks are the backlinks that all search engine care most. Dofollow attribute simply tells the Search engine to follow the link so if your website has a dofollow backlinks then you will get a Up Vote from the website it has dofollow attribute in the backlinks. Basically all the backlinks are dofollow if you don’t mention it otherwise by giving a nofollow attribute. We will learn more about nofollow attribute at the end of this article. Example:   TechSpree

A Nofollow backlink instructs search engines that this backlink should not influence the ranking of a particular website or blog in search engines. Nofollow backlinks are ignored by most of the search engines. But that doesn’t means having a lots of Nofollow backlinks won’t help you in SEO. Having nofollow backlinks is good but having Dofollow backlinks is better. You need to build dofollow backlinks as much as you can so that you can have a good PageRank or have a good position in the search engine. Example:   TechSpree

For Chrome User:

Download and Install this Chrome Extension. This plugin will check if any links on any page is dofollow or nofollow. If its nofollow , then the link will be highlighted with red color. So you can easily check which link is nofollow.

For Firefox User:

Download and Install this Firefox Addon. Now restart your browser Just Right click on any page and Select Nodofollow. This plugin will check if any links on any page is dofollow or nofollow. If its nofollow , then the link will be highlighted with red color. If the link is Dofollow then it will be highlighted with blue color. So you can easily check which link is nofollow.

Summery:

There are two ways you can link to your blog: Dofollow link , Nofollow Link. A NoFollow backlink won’t get any vote from the website and neither would that link be counted as a Backlink to your website/blog and thus has no effect in the PageRank. A link to your blog with a DoFollow tag will get a vote from his/her website and that link would be counted in your pagerank as a backlink to your site. PU6EN677REBN

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