Comprehension Nofollow and Dofollow

Ponerah- When we talk about SEO, we often hear the term Nofollow, Dofollow, meta tags, robots, and other indexes. all terms are very related to the technique of search engine optimization (SEO).

This post I will discuss about what is nofollow and dofollow, as a basic understanding of SEO techniques to master. For most experts would have understood that term. But for the beginners will SEO techniques, certainly not yet fully understand the meaning of the nofollow and dofollow. Hopefully this post helpful to us all.

Nofollow is an attribute value in the HTML language code tells search engines It was not possible to hyperlink (link address) to go to the index (word search) to search engines. Nofollow is usually used to anticipate the attack on spam a search engine that can make the performance of search engines degrade the quality for a search or commonly called a flood. This concept was introduced by Matt Cutts and Jason Shellen in 2005.

For simplicity, Nofollow means that do not provide exit permits links to content that will be detected by search engines. But this does not mean blocking the page content indexed by search engines.
examples of the use of meta tags Nofollow :

<title><data:blog.pageTitle/></title>
<meta content='INDEX, NOFOLLOW'name='ROBOTS'/>

Dofollow can be interpreted to give consent to the search engines to follow links on a content link. A webmaster or board administrator who implement dofollow blog then this is a form of appreciation to the visitors to get a backlink from the website so that it is better known as "link love".

Dofollow tag usage on a website is very vulnerable to spam comments. why do so, because search engines will index all the keywords contained in the anchor text. So keep in mind for you, which relefan comment accordance with the contents of the blog's content using the dofollow tag. Because it is a thank-you for the blog admin.
examples of the use of meta tags Dofollow :

<title><data:blog.pageTitle/></title>
<meta content='INDEX, FOLLOW'name='ROBOTS'/>

So can I just finished about Nofollow and Dofollow. If there is any shortage, please extras and commentary.

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