Ajax Fancy Captcha is a jQuery plugin that helps you protect your web pages from bots and spammers. We are introducing you to a new, intuitive way of completing “verify humanity” tasks. In order to do that you are asked to drag and drop specified item into a circle.
通过拖动解锁来实现评论验证。能够有效防止垃圾评论、机器人评论。
This plugin is available for download to be used on your WordPress self-hosted installation.