nullstream weblog - Comment Spam

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Comment Spam

Nullstream Site

January 19, 2005 05:24 AM PST

Google, Yahoo, MSN, MovableType and others have agreed to not boost search rankings to sites with links marked with the rel="nofollow" attribute set. While this doesn't physically prevent comments on blogs from being created with links back to sites, it does prevent them from doing any good on search rankings. I'm very impressed to see these major search providers working together, as well as the major blogging software packages all jumping on this standard. An elegant solution that everyone can get on board with.

I've updated the site to mark all links within comments with this attribute automatically, so only links within the main posts will do anything to boost search rankings of sites. I believe this also closes the door to trackback links boosting the value of various blogs.

Comments (7)
John, January 19, 2005 10:22 AM:

Is there any value to trackback at all now?

J, January 19, 2005 11:36 AM:

Yes, it still allows people to see related stories that other blogs post, so you can hop from blog to blog on a topic. It helps human referrals, just not google rankings!

J, March 16, 2005 08:48 AM:

Interesting new comment spam on the site now. completely random name, email, ip address, url and contents. The URLs actually start with nullstream, but end in a random value and .com. So they're likely a phishing scam. Firefox correctly interprets these links as "file not found" on nullstream, but IE may actually direct to a site.

Not sure why one would bother with random hex characters as the link text (who's clicking on that?). We mark links with nofollow, so it won't affect rankings in the search engines either. Dummies.

We have a mechanism to prevent even these random links (although they foil mt-blacklist pretty well). I'll leave the links up for a day or two in the comments if you want to do some investigation.

J, March 19, 2005 04:01 PM:

I've updated the site to disallow automated spambots. That plus nofollow on links and mt-blacklist should help with nearly all spam.

Every time I write something in perl, I am reminded how nasty and error-prone that language is. It's ridiculous how many web sites back ends are written in perl given the massive risk of overflows and exploits unless the developer is extremely proficient. I would guess that for any beginner to medium level programmer, Java would be the best back end for web software, just because mistakes don't typically have as big an impact.

Paul, March 19, 2005 06:56 PM:


Paul Graham, March 19, 2005 06:57 PM:


Paul, March 19, 2005 09:57 PM:

((((((((((((((((+ smart ass))))))))))))))))

All links will be marked with the nofollow tag, making them useless for search rankings. Any posts containing spam URLs will then be deleted.