There’s an attribute that we can assign to the anchor tag called nofollow, it was introduced a while back by Google and has been stirring up trouble ever since it arrived. It’s designed to help stop comment spam but lots of people are not entirely sure that it works.

The nofollow attribute works by telling search engines not to influence the PageRank of my site by the comments left by others. Now, that doesn’t sound so bad until you really stop to think about it because I blog on a lot of really great websites and I want some of those people to influence my rankings, I also want to influence the rankings of others.

So then why use it? Until we have a better way of controlling comment spam, it’s the best way.