What’s rel=”nofollow”?
By default, whenever anyone comments on your blog WordPress will add rel=”nofollow” in the link. I didn’t realize this was something that WordPress actually did… but I was curious why anyone would utilize it.
Google actually utilizes rel=”nofollow” to simply ignore a link when calculating a website’s Pagerank. The theory behind automatically adding this information in blogging content engines was that it would dissuade comment spammers from clogging up blogs. The problem is that comment spammers really don’t care about their site’s Pagerank… they simply care about getting the link out there for people to click-through on.
As a result, “nofollow” may actually hurt good blogs instead of helping them. If you’re as picky as I am about approving comments, you only allow comments in your blog that add to the conversation. If one of my readers throws a link in there to a great tool or another post that may support or argue what my post is about, that site does deserve credit that they are being referenced.
So tonight, I installed the Dofollow plugin to each of the blogs I manage for my clients. All of the blogs have strict comment management so I’m not concerned with comment spam getting through.
Additional Info:
- WordPress on nofollow
- Wikipedia on nofollow
- Dofollow Plugin for WordPress. UPDATE: 10/13/2007 - this plugin was actually breaking some of my comments so I removed it. Read my post about hacking the WordPress source code to remove nofollow from the source.


Douglas Karr
In an interview a comment spammer said:
“Will the initiative by Google, Yahoo and MSN, to honour “don’t follow” links defeat Sam and his ilk? “I don’t think it’ll have much effect in the short, medium or long term.”
The full interview is here:
http://www.theregister.co.uk/2005/01/31/link_spamer_interview/
Martin, great article. I wonder how difficult his job has become in the last year!
I have no problem manually editing links. I usually edit comments to add Google Analytics outgoing links, link titles and fix visitors typography, but it’d be nice to automate it to some extent.
<a href="http://www.donotgoogle.com" rel="nofollow">I found this. Should have checked before contacting you via the contact form.
Cheers!
Alpesh
You will get more “Great post” comments as a result, but those go straight into the recycle bin anyway.
The obvious spammers have names like “SEO expert” or “Web design Atlanta” or something keyword loaded. The genuine ones usually have real names like “Lisa” or “Robert”.
The results won’t be as important for me as they will be like you folks! Commenting on my site should assist in your Google rankings.
Regards,
Doug
Most people moderate their comments so why penalize those who take the time to leave a useful comment on the site?
I’ve added a commenting policy to my site so that I don’t have to feel bad about deleting the comments that are in the grey area.
For example, if someone leaves a comment that says “nice site”, I propose to delete the comment, unless they leave the URL field blank. Without such a policy, I felt compelled to check the link and decide based on the site.
Throughout the blogging world there is a growing practice to get rid of the rel=”nofollow” addition that WordPress adds to links in comments. I agree that it’s a great way to give commenters an incentive to write comments (they get th…
some people say that pages will still get indexed through the no follow tag. is this true?
Any link should be counted, or you shouldn’t allow the link to exist. I know of people who purposely add nofollow to links within their posts so that they won’t have a ton of outbound links, with the theory that sites that link out more than they are linked into get a lower PR.
It upsets me to no end.
wonder what happen if we all use nofollow to them?
Have a good one.
I think a policy of either allowing or disallowing comments on an individual basis rather than just downgrading them all is a far better approach.
I’m not sure how much it actually assists directly with participation. I do think, however, that ‘birds of a feather fly together’ so you’re more apt to connect and participate with other blogs that don’t use nofollow. In the long run, I do think there’s benefit.
I just like it because I believe that much of my success in blogging has been do to the participation of folks like you in the conversation. Why should I get all the benefit?!
Cheers!
Doug
Great initiative too, but ONLY in combination with a strict comment/user management, otherwise blogs will become spam sources quicker than we think.