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