WP-Hashcash
Client-side javascript blocks all spam bots. XHTML 1.1 compliant.
Plugin tag: antispam
Spam Destroyer
Kills spam dead in it's tracks. Be gone evil demon spam!
reCAPTCHA in WP comments form
reCAPTCHA in WP comments form is an ANTISPAM tool that adds a Google reCAPTCHA to…
FV Antispam
FV Antispam is a powerful and simple antispam plugin. It moves any spambot comments directly…
Kama SpamBlock
Light and invisible method to block auto-spam when spam comment is posted. Pings and trackbacks…
Easy Captcha
Several types of captcha to protect your site in one easy to use plugin.
WP Spam Fighter
Comment spam prevention without moderation, captchas or questions
Gravity Forms Zero Spam
Enhance your Gravity Forms to include anti-spam measures originally based on the work of David…
WP-reCAPTCHA-bp
Integrates reCAPTCHA anti-spam methods with WordPress sites using BuddyPress plugin, including comment and registration spam…
Captcha by BestWebSoft
1 super security anti-spam captcha plugin for WordPress forms.
WP referrer spam blacklist (fight 521+ Referrer Spammers in (Google/Piwik) Analytics)
WordPress plugin to fight with 500+ referrer spammers (like semalt, buttons-for-website and many more).
CheckBot
This antispam plugin provides very simple(one-click) and powerful captcha for your blog.
En Spam
Block spam with cookies and JavaScript. All Spambots will remain away from your blog. Without…
Spam Master
Spam Master is the Ultimate Spam Protection plugin that blocks new user registrations and post…
