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From "Daniel Fisla" <>
Subject Re: Comment/Referer spam
Date Sat, 23 Jun 2007 18:42:25 GMT
>From my  experience  it's trackback spam, or using the trackback api. I
think this is a huge problem for blogs.
Our service gets hundreds of thousands of spam messages. Blocking by IP and
keywords gets you only so far. What is really needed is some statistical
filtering system like CRM114 (or dspam but that is for mail) Problem is
these systems are not easy to deploy and maintain.


-Daniel Fisla

On 6/22/07, Gary Kephart <> wrote:
> How is it, with the "simple math question" in place, that spammers are
> still able to enter comments on my site and show up in the referers
> list? Do the spammers have program which can parse the web page and then
> answer those questions? If so, can we swap the math for something else
> like an image with numbers & letters in it?
> Gary
> --
> The penalty that good men pay for not being interested in politics is to
> be governed by men worse than themselves - Plato, philosopher (427-347
> BCE)

Daniel Fisla


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