No spam in the Contact Form 7.Add anti-spambot functionality to the CF7,it blocks spam without using CAPTCHA.
This enables the Really Simple CAPTCHA for the cformsII form plugin.
Confident CAPTCHA™ is a clickable, picture CAPTCHA that stops spam and malicious bots, while remaining a very easy CAPTCHA for humans to solve.
Contact Form plugin from www.123ContactForm.com
Math Captcha is a 100% effective CAPTCHA for WordPress that integrates into login, registration, comments, Contact Form 7 and bbPress.
Creative Contact Form is a responsive contact form builder with amazing visual effects. Over 46,000+ sites are already using Creative Contact Form.
The Add new recaptcha google plugin allows you to implement a super security REcaptcha form into web forms.
Contact Form plugin from www.123formulier.nl
Contact Form plugin from www.123Formular.de
Antispam question for signup and comment forms of wordpress, set by admin, supports Multisite mode. The antispam question does not appear in single si
Add Google’s simple checkbox reCAPTCHA to WordPress wp-admin login page.
Plugin to protect content on a Page or Post, where users require a password to access that content.
Stop spam with a fun, fast mini-game CAPTCHA! FunCaptcha is free, and works on every desktop and mobile device. For BuddyPress, Ninja Forms, Gravity F
Adds the new google “Are you robot?” recaptcha to wp-login page, registration page, comment forms, buddypress registration page and contact form 7
Adds Captcha Code anti-spam methods to WordPress forms. Forms include comments form, registration form, lost passwordform and login form.
An addon for the Affiliates Manager plugin to add Google reCAPTCHA to the registration page
This plugins avoids spam actions on your website (comments and contact form if you use Contact Form 7).
The ultimate plugin and service to stop and kill splogs in WordPress Multisite and BuddyPress, from WPMU DEV.
Adds "No CAPTCHA reCAPTCHA" field to Gravity Forms as an alternative CAPTCHA option
Hercules Recaptcha adds a Recaptcha to the comment form for non-logged in users. It uses the latest Recaptcha API.
Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment, or if Akismet thinks their comment is spam.
Block bots without annoying captchas. Cache friendly solution with rotating keys! Blocks comment, registration, and bbpress spam. Activate and done!
Easy Email Subscription form with secured captcha.
This plugin adds a reCAPTCHA form to BuddyPress registration form to keep your community spam free.
Stop a lot of spambots from polluting your site by making visitors identify a custom word displayed as an image before commenting.
Really Simple CAPTCHA is a CAPTCHA module intended to be called from other plugins. It is originally created for my Contact Form 7 plugin.
Protect WordPress login, registration and comment form with the new Google's No CAPTCHA reCAPTCHA.
This is a simple plugin that adds a recaptcha validation to the bbPress 2.0 topic creation and topic reply forum.
Adds a reCaptcha™ to your MyMail subscription forms
Very light invisible method to block auto-spam when spam comment is posted. Pings and trackbacks cheks for real backlink.