Akismet Anti-Spam
Akismet checks your comments and contact form submissions against our global database of spam to…
Antispam plugin with a sophisticated tool set for effective day to day comment and trackback…
A lightweight plugin that protects email addresses from email-harvesting robots, by encoding them into decimal…
Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam, and registration spam.…
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site.…
An extremely powerful antispam plugin that blocks spam-bots without annoying captcha images.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
Dead simple and super lightweight anti-spambot WordPress plugin. No captcha, tricky questions or any other…
Captcha Bank is a anti-spam captcha plugin for WordPress forms that adds secure image captcha…
Protect your site against bad bots by trapping them in a virtual blackhole.
Simple IP Ban is a lightweight ip / user agent ban plugin.
Kills spam dead in it's tracks. Be gone evil demon spam!
Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment,…
Client-side javascript blocks all spam bots. XHTML 1.1 compliant.
Anti-spam for Caldera Forms. Recaptcha and more.
Anti-Captcha is a transparent spam solution that does not require any end-user interaction.
Enhance your Gravity Forms to include anti-spam measures originally based on the work of David…
Asks the visitor making the comment to answer a simple math question. This is intended…
Performs a simple but very effective test on all incoming trackbacks in order to stop…
REPLACEMENT of the original Simple Trackback Validation Plugin from Miachel. Performs a simple but very…