An extremely powerful antispam plugin that blocks spam-bots without annoying captcha images.
Captcha Bank is an easy to use wordpress security plugin to prevent spam on your site while letting real people pass through with ease. It's more
Max power spam protection, all-in-one, premium anti-spam. No comments spam & registrations spam, no email spam, protects any forms. Forget spam.
A lightweight plugin to protect email addresses from email-harvesting robots by encoding them into decimal and hexadecimal entities.
An exceptionally powerful WordPress anti-spam plugin that eliminates comment spam, trackback spam, contact form spam & registration spam.
Protect email addresses and mailto links from spambots and spamming. Easy to use without configuration.
Stop your website email addresses from being scraped and harvested by spammers with the best email obfuscator protection available.
Just ajax contact form with captcha, one shortcode and easy to use, without options and without complexity.
Add captcha to forms easily, comment form, login form, register form, rest password form, easy to use and translate ready, no spam comments!
This plugin allows you to implement Google reCAPTCHA (CAPTCHA) into your web forms.
Prevent people from registering with emails that contain a subdomain to help reduce spam.
Gwolle Guestbook is the WordPress guestbook you've just been looking for. Beautiful and easy.
Antispam check the robots by behavior.
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site. Supports Gravity Forms, Ninja Forms, BuddyPress & mo
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
This plugin allows you to implement super security captcha form into web forms.
This plugin allows you to implement Google Captcha (reCAPTCHA) into web forms.
WordPress plugin to fight with 300 referrer spammers (like semalt, buttons-for-website and many more).
Сaptcha generated numbers and latin characters. Designed for use in custom forms and displays a simple shortcode, and connect to log form.
Block users from registering to your WordPress site with custom defined blacklists and whitelist rules.
Write email addresses without worrying about spambots and email harvesters.
Login Form with security, design and redirect features. Custom login WordPress client login website
Integrates reCAPTCHA anti-spam methods with WordPress sites using BuddyPress plugin, including comment and registration spam protection.
FV Antispam is a powerful and simple antispam plugin. It moves any spambot comments directly to trash and allows Akismet to just deal with human spam.
This plugin will stop comments spam entirely, for free. It requires all users to connect their verified RubyID account before they can post a comment.
Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam. Protects against malicious attacks.
A clean, secure, plug-&-play contact form for WordPress.
Industry leading bot detection and analytics through the use of the Ellipsis Human Presence score proprietary technology.
Akismet checks your comments against the Akismet Web service to see if they look like spam or not.