“NoFollow” is an HTML attribute that you can assign to a perticular hyperlink to instruct the search engine crawler that it should not index this link while assigning a rank to the rank which has been linked to. “DoFollow” isn’t a real attribute. If a link does not contains the “NoFollow” attribute, then it should to be a DoFollow link.
When you create a link within the posting content of your blog posting, on the sidebar of your blog or in a comment, it is coded in anchor tag with out rel attribute. If you want to make it as “NoFollow”, it should be coded as follows. The rel attribute, rel=”nofollow” defines the link as “NoFollow”. If this part will not be written, then it indicates that the link is “DoFollow”.
You should not use the NoFollow tag for links which are associated with unsecured or spammed content. By untrusted content, I mean the content or comments which you don’t think are reliable, relevant or good enough to touch for. NoFollow tag is also used for paid links (links that are associated with blog advertising options) and links to pages which don’t change usually.
By Using a NoFollow tag for a hyperlink of site having unsecured content helps you to explain the search engine crawler that your blog or website has no relation to the other site. By going this step, you discourage spammers from targeting your blog and also you can prevent your blog from being linked with a bad neighborhood. Also, you can boost up your link stuff within your blog and have the chance to get a higher PageRank. Now, if there are paid links on your blog and you tag them as “NoFollow”, you can save your blog from going against the Google Terms and Services and avoid getting a penalty from Google.
Another benefit of using the NoFollow tag is saving time and bandwidth and not allowing the search engine to waste time crawling pages which you don’t want it to visit. Such pages could be your login or registration page or your “About Us” page or even your “Terms of Use” page. By using NoFollow tag for the links to these pages, you help the search engine crawler get enough time to visit pages which haven’t been indexed yet.
There are several bloggers who post comments on other blogs just to leave behind a link to their own blogs, which helps to boost their search engine ranking. But finding that your blog allows “NoFollow” link, they may not comment because they don’t get the value through linking. So, your blog will certainly lose some activity.When you keep your blog “DoFollow”, you’re really encouraging others to linkup with your blog, thus allowing them to get backlinks. When other bloggers indulge in conversations in the comments section, it maintains good professional relationship which can further help you to promote your blog. When you have regular commentators, you can reward the ones providing real good feedback that are helpful for your blog readers. Of course, you shouldn’t forget to highlight the names of those commentators, on your blog’s sidebar. This may boost their activity on your blog.
