by Chris Mok on WordPress.org
This plugin allows you to implement Google reCAPTCHA (CAPTCHA) into your web forms.
GNA Google reCAPTCHA plugin allows you to implement a super security CAPTCHA into web forms. GNA Google reCAPTCHA is a free CAPTCHA service. This plugin can be used for login, registration, password recovery, comments forms, contact form 7.
FAQs | Tech Support
WP-Mail-Validator is an anti-spam plugin. It provides mail-address validation in 5 ways:
An anti-spam captcha using jQuery's UI slider. After the position of the slider is past 60% (default), it will enable the submit button.
Add Cloudflare Turnstile protection to your Gravity Forms to prevent spam and bot submissions.