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…
Stop WordPress Spam
Protect email addresses on your site and hide them from spambots. Easy to use &…
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.
Blackhole is a WordPress security plugin that detects and traps bad bots in a virtual…
Captcha Bank is a anti-spam captcha plugin for WordPress forms that adds secure image captcha…
Anti-spam for Caldera Forms. reCAPTCHA and more.
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…
Simple IP Ban is a lightweight ip / user agent ban plugin.
Kills spam dead in it's tracks. Be gone evil demon spam!
Client-side javascript blocks all spam bots. XHTML 1.1 compliant.
Enhance your Gravity Forms to include anti-spam measures originally based on the work of David…
Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment,…
Stop comment spammers. Remove Comment Author Link & Links from Comments, Unlink, Disable Comments, Delete…
Anti-Captcha is a transparent spam solution that does not require any end-user interaction.
Performs a simple but very effective test on all incoming trackbacks in order to stop…