WordPress Captcha Plugin by Captcha Bank
Captcha Bank 是用于WordPress表单的反垃圾信息验证码插件，可添加安全的图像验证码或数学验证…
插件标签： text captcha
Contact Form 7 Text CAPTCHA
Secure your website Contact Form 7 forms from bots and …
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…
CAPTCHA Solution
CAPTCHA Solution is a CAPTCHA module intended to be cal…
Text Captcha For Contact Form 7 [GWE]
Adds a text captcha to Contact Form 7