Bad Behavior is a set of PHP scripts which prevents spambots from accessing your site by analyzing their actual HTTP requests and comparing them to profiles from known spambots. It goes far beyond User-Agent and Referer, however. Bad Behavior is available for several PHP-based software packages, and also can be integrated in seconds into any PHP script.

bad-behavior-2.0.10.zip Downloads: 373 times

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We can’t stand spam.

Who can? You have better things to do with your life than deal with the underbelly of the internet. Automattic Kismet (Akismet for short) is a collaborative effort to make comment and trackback spam a non-issue and restore innocence to blogging, so you never have to worry about spam again.

akismet.zip Downloads: 425 times

http://akismet.com/

This plugin adds a graphic generated number (CAPTCHA) which you need to read and then write on a new field of the post to be able to post. This way only humans will be able to comment a post.

trencaspammers1rc.zip Downloads: 386 times

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This differs from the other image plugins in that it creates an anti-spam jpg using random words of your choice (adding a fun element) and it does not require visitors to have cookies enabled.

peterantispam2.61.zip Downloads: 382 times

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I wanted my WordPress to have one of those nice Captchas challenges to avoid spam.

There are already some of them, but I found them not suitable for my webhosting service (Secureimage), or a bit weak (Trencaspammer). So I started my own based on the HN Captcha PHP class.

captcha.zip Downloads: 394 times

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bot-check is a WordPress anti-spam comment plugin originally developer by Brian at Blue Eye web

bot-check-1.2.tar.gz Downloads: 368 times

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