pRove yoU are a Human! (RUH) image based Captcha plugin
RUH Captcha helps filtering out all robot attempts to register/comment.
Plugin Tag: robots
WP Check Indexable
License: GPLv2 or later This plugin adds an admin panel notice showing whether or not…
ChatBot Blocker by CellarWeb
ChatBot Blocker by CellarWeb adds commands to the WordPress virtual robots.txt file to block various…