PREVENT SPAM WITH NOFOLLOW TAG

Before digging into nofollow attribute, let us first understand what exactly nofollow attribute is:

According to Wikipedia "nofollow is an HTML attribute value used to instruct search engines that a hyperlink should not influence the link target's ranking in the search engine's index."

In simple words, nofollow attribute is used to tell search engine not to follow a particular link so that target link's ranking doesn't get affected by particular link.

The nofollow attribute is used to reduce linkspamming activities followed by many spammers and this will help in increasing the quality of search engine results. This is an important attribute which is used to reduce link spam.

Example of nofollow attribute:
HTML code: [a href="http://www.google.com" rel="nofollow">Google Search[/a]
(Use <> instead of [] in actual code)

This will result in: Google Search

The resulting link which is still visible to users will not contribute to Google's link popularity, Page rank or Search Engine Ranking.

Nofollow attribute is used to prevent spammers from abusing blogs, forums, guest books and other places where any body can comment. Now Blogging software’s like blogger, wordpress are by default using nofollow tag to stop spamming. Any links or comments posted on these blogs will not pass link authority (You can also remove nofollow tag on blogger & wordpress and I will follow this in my next post.)