Security & Privacy
New comment spam technique
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29 Jul 2004
The arms race against comment spammers has been stepped up a notch. I received a flurry of spam that linked to entries on other blogs. Curious to see what that was all about, I clicked on one of the links, fully expecting to be redirected to porn or an online casino. I was surprised to see a discussion of patent law; this comment spam linked to a legitimate site.
The comment that I received was certainly spam — other than the odd link, it was the typical formula: the name was “online casinos,” fake generic email address, and a vapid comment. Certainly a Stanford law professor hadn’t actually sent the spam. There was another reason this spammer was promoting someone else’s blog entry.The blog entry in question was full of comment spam. In the last 3 months, this entry had accumulated thousands of spam links in the comments.
It appears the spammers have a new tactic in increasing their PageRank. They find a site that doesn’t delete comment spam and fill it with links. Then they boost the PR of that site by spamming it in blog comments. Once the spam-friendly’s site has in increased Google ranking, all those spammed links in their comments will get a boost in rank as well.
It’s rather clever, actually.
I’m leaving out a link to the spam-ridden blog entry on purpose. I don’t want to give the spammers the link they want. If you want to see the page in question, find Elizabeth Rader’s March 1, 2004 entry called “All rights reserved in Birth Control for Flatworms” on cyberlaw.stanford.edu.
If you are a site that is apathetic toward link spam, it is now time to choose a side. If you continue your apathy and allow comment spam links to linger on your site you are helping the spammers. Spam friendly sites will now be placed on the list of blacklisted domains that are not allowed to post comments on this site.
In the war on spam if you are not for us; if you choose to look the other way and allow spammers to use your site; if you feel that keeping your site free from spam is too much trouble — you are against us.