WP Captcha prove that the visitor is a human being and not a spam robot. WP Captcha asks the visitors to answer a math questions.
Cartpauj Register Captcha does one simple task. It prevents SPAM signups through WordPress' default registration form.
Add captcha to forms easily, comment form, login form, register form, rest password form, easy to use and translate ready, no spam comments!
Custom login and registration. 自定义登录注册。