Captcha Code
Adds Captcha Code anti-spam methods to WordPress forms….
外掛標籤: CAPTCHA Code
Mimi Captcha
简洁的中文验证码插件。在 WordPress 登陆、注册或评论表单中加入验证码，支持字母、数字、中文和算术形式…
Easy Captcha by Croitre
Adds Mathematical Captcha to be solved in your form to …