One of the unseemly side affects of having a spidered blog, is that you will, without question, get comment spam. That means that your lovely blog will get all sorts of comments — added by robots and human idiots — that have nothing to do with your posts, but are only left so that you can pass your ranking to their (generally questionable) sites.
To combat this, Google implemented a “nofollow” tag, which WordPress added as the default. That means that your linked comments on other blogs (both spammy and legitimate) don’t give your site any Google juice.
Unfortunately, this implementation hasn’t seemed to deter spammers at all (robots and idiots probably haven’t figured out what nofollow means), but it has discouraged real bloggers from commenting as often as they might.
There is a movement underway to remove the nofollow tag. You can make your blog a “dofollow” blog easily with a simple, free plugin. There are numerous plugins you can choose from, but my favorite is NoFollow Case by Case. Step by step directions to install it in just a few minutes are below.
Login to your Dashboard.
Click on Plugins>Add New in the left navbar.
Type NoFollow Case by Case in the search box. Click Search Plugins.
Locate NoFollow Case by Case in the results list. (It’s probably the first.)
Click on Install on the right side of that plugin row.
Click Install Now on the popup dialogue box.
After the plugin is successfully uploaded, click on Activate Plugin.
That’s all there is to it. The plugin now strips the nofollow tag from all your comments by default. If a particular link shows up that you really don’t want to give link love to, simply add /dontfollow to the end of the URL. For example, change:
The plugin will leave the link intact, but will add nofollow to it.
Now you can join the growing number of blogs that are happy to give link juice to those who comment. Our own blogs are all dofollow blogs. We encourage you to follow the trend! If you do, you can submit your blog information to the DoFollow Blog Directory & Resources and get a link back.