If you are going to make a comment on a blog, you might want to make sure that these blogs is the "Do Follow" blog. So, you can check the blog by seeing first logo "U COMMENT I FOLLOW" on the blog. In general, blogs that put the logo is already committed to respond to all comments. And again, with the logo of the blog will give you backlinks to your comment.


But you can also use the Mozilla Firefox tools. Of course the first step you should do is downloaded the "nodofollow" add-on through this link:

'Nodofollow' addons mozilla.

After that, you can add it to your firefox. If so, you will be prompted to restart your firefox. Just click the "restart" button, and your firefox will automatically open again. Then, turn the blog page that you wish to comment, and click Tools on your Firefox and check "NoDoFollow". You can also do this by right clicking.

Furthermore, you can see all the links on the page will be on the mark. Consider the link from the commentators before you. If the link is blue, then it is a "Do Follow" link, but if it’s the red link means is "No Follow". If you're sure, now you can write your comments.