NF Captcha
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NF Captcha adds Really Simple CAPTCHA element for human check.
NF Captcha adds really simple captcha elements to the Elements’ block. It also includes labels and custom classes for the element to allow for more styling. It ist a good alternative, if you don’t want use reCAPTCHA or Anti-Spam-Question.
This plugin requires the Ninja Forms and Really Simple CAPTCHA plugin.
Этот плагин можно скачать и использовать при .