The most advanced protection against sploggers and spam users registration, is fully WordPress,WordPress MU ,BuddyPress and bbPress 2.0 compatible
The easiest way to block bad bots. Blocks more than 1000 bad bots with one click! No .htaccess neither robots.txt required.
Version: 1.0.5 The simplest and easiet way to stop bad web crawlers, bots and referrer spammers from targeting your wordpress website