CH Captcha use for Add captcha to WordPress on contact form 7.

Confident CAPTCHA™ is a clickable, picture CAPTCHA that stops spam and malicious bots, while remaining a very easy CAPTCHA for humans to solve.

The Add new recaptcha google plugin allows you to implement a super security REcaptcha form into web forms.

Stop spam bots from registering, logging in, filling out contact forms and commenting on your site without using annoying Captcha codes or puzzles.

WP Secure Captcha is an extremely powerful Anti Spam Plugin that secure your Wordpress Forms. Attractive, Simple and Flexible.

WP reCaptcha authenticate the visitor is a human verifying by Google ReCaptcha

WC Captcha is the Most Powerful Mathematical CAPTCHA for WordPress. That integrates into Form spam, Security, SignIn, SignUp, Registration, Login, Comments, Contact Form 7, bbPress, Elementor and Page builders, All forms and Woocommerce forms of your website.

Protect your website against spam bots with reCAPTCHA.