nofollow And dofollow Difference On Blogger

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Understanding the link with the "nofollow" attribute that you often encounter in a Website and Blog Website is a way to instruct search engines to not follow the link target in a Website and link targets will not take advantage like SEO pagerank. The first objective of this instruction is to prevent the crawler from indexing robot spam comments in a Blog.

As a simple example, I want to put a link anexamples.com in the blog, but I do not want anexamples.com website search engine pagerank benefit from the installation of these links, then I will post the link anexamples.com with the format:
<a href="http://www.anexamples.com" rel="nofollow">An Examples</a>

The Workings Of A Link

Link is a sign of the relationship between the two websites, namely between the Web site put the link, and website links of interest. This link can be placed intangible text or placed into an image. Examples of link is as follows:
An Examples - This link leads to http://www.anexamples.com
So as you can see, the link is made simple connection to another website outside of your website. So what to do with a nofollow link?
If you see a normal link will be inscribed with the following html code:
<a href="http://www.anexamples.com">An Examples</a>
So if you write with an additional link attribute "nofollow" then you have to insert the code rel="nofollow" in it, it would look as follows:
<a href="http://www.anexamples.com" rel="nofollow">An Examples</a>
With the insertion rel = "nofollow" then some search engines will not follow the link destination, which means profits in the form of SEO pagerank, will not be routed to the destination link.
Nevertheless several different search engines in translating the link attribute "nofollow" is:
1. Google, did not follow the link with the "nofollow" attribute.
2. Yahoo !, will still follow, but will remove from the calculation of pagerank.
3. Ask.com, did not follow the link with the "nofollow" attribute.
Examples of the Blogger as image below⇩

Function Link "nofollow"

The immediate effect of installing the "nofollow" attribute is no diversion pagerank of mounting website to website destination, so pagerank installer website link is not deductible to be diverted to the link destination. This is what often leads to disputes when the exchange of links, one of which is to put a link with the "nofollow" attribute.

Google released a guide for link attribute "nofollow", you are advised to install the "nofollow" attribute to reasons such as the following:
1. Untrusted Content, where the link destination can not be trusted its web load and could be at risk spammy. For example enter comments and guestbooks are not trustworthy, so it will minimize the entry of spammers to get to your website
2. Paid Link, if you install the links are paid will have a negative impression to the visitors of your website, then you are encouraged to install the "nofollow" attribute of this. What is it paid links? Page links are paid links, organized by the seller and buyer services link. Google itself certainly is not like the way raise the ranking by placing paid links like that.
3. Priority Crawling, search engine robots can not login to your forum, so do not need to invite the search engine robots to follow the link "Sign Here" or "Login" because it would be futile.

Function Link "dofollow"

Attributes link "dofollow" is a command to search engines to follow the link destination that you put on the Web page. With the installation link "dofollow" is the link destination will benefit from the increase pagerank transferred website installer link. For example, if website A put a backlink to website B, then website B will benefit from the increase pagerank website A form of SEO. How was rated good to raise a low pagerank website, by posting backlinks in high pagerank website. Synonymous with "nofollow" attribute, fitting attribute "dofollow" This is by inserting rel="dofollow" code into your HTML link, for example: <a href="www.anexamples.com" rel="dofollow">An Examples</a>

The conclusion is, links that contain the "nofollow" attribute is the opposite or inverse link that contains the attribute "dofollow".
Of the many explanations above, I'm sure you already understand.
Alhamdulillaah, I think it just enough that I can convey to you in this article.