The most lightweight Google reCAPTCHA v2 comment anti-spam plugin!
Block unwanted visitors from viewing your WordPress site.
MASP is an advanced spam filtering web service. It can learn content and responds to incoming threats. In short, it copes with spam efficiently.
Prevent people from registering with emails that contain a subdomain to help reduce spam.
This plugin is a simple captcha that appears when an unregistered user try to register or to leave a comment.
Integrates SpamCaptcher anti-spam methods with WordPress including comment and registration spam protection.
Prevents automated SPAM by requiring visitors to answer a question of your choosing (plaintext or regex).
Integrates μcaptcha with WordPress, including comment and login/registration forms.
Pass comments through the BotScout API and flag spam comments where appropriate.
Integrates CaptchaAd anti-spam methods with WordPress including comment, registration spam protection.
Shortcode for simple email address obfuscation using CSS.
Plug-in to hide the login page, change the url: wp-login.php and wp-admin maintaining functionality
This plugin allows you to view the full Bad Behaviour logs from within WordPress.
The plugin provides the next generation in captcha, BotProof Captcha 2.0, to a WordPress blog comment form. It is currently version 0.9.6.8 Beta.
Integrates NLPCaptcha anti-spam methods with WordPress including comment, registration, and email spam protection.
Industry leading bot detection and analytics through the use of the Ellipsis Human Presence score proprietary technology.
Integrates yoCAPTCHA anti-spam methods with WordPress including comment, registration, and email spam protection. WPMU Compatible.
Prevent spams with hassle free captcha.
NF Captcha adds Really Simple CAPTCHA element for human check.
Pictcha is a very unique & secure CAPTCHA.
With this plugin you can query http://www.stopforumspam.com/ database and block guest spam post (also in bbpress plugin)!
This plugin is used to specify the IP written comments, to reduce comment spam issues, can be used for SEO, managing multiple sites.Please commments.p
Show spam statistics on your blog. (Now merged into SpamTask)
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.
A plugin to understand SpamDyke 's error codes
Captchelfie - Captcha by Selfie. Now with social capabilities.
Last modify: 04.06.2010 DD.MM.YYYY Trumpcha is a very unique jQuery ajaxed CAPTCHA plugin that requires just one click/(mouse mmovement) instead of t
We're sorry, but BotAlert/BotBlock is no longer available.
WP True Typed is an anti-spam plugin to protect your site from comment spam.
Adds integration with Nocaptcha Mail.Ru service - free intelligent CAPTCHA service.