Simple Trackback Validation

Performs a simple but very effective test on all incoming trackbacks in order to stop…


Michael Woehrer 3,000+ active installations Tested with 2.9.2 Updated 11 aastat ago

Math Comment Spam Protection

Asks the visitor making the comment to answer a simple math question. This is intended…


Michael Woehrer 3,000+ active installations Tested with 3.0.5 Updated 10 aastat ago

WP Spam Fighter

Comment spam prevention without moderation, captchas or questions


Henri Benoit 2,000+ active installations Tested with 4.1.32 Updated 6 aastat ago

Block Spam By Math Reloaded

This plugin protects your WordPress and Buddypress login, comments, and new user/new blog signup process…


James Pegram 1,000+ active installations Tested with 3.3.2 Updated 8 aastat ago

En Spam

Block spam with cookies and JavaScript. All Spambots will remain away from your blog. Without…


Hatul 1,000+ active installations Tested with 5.5.3 Updated 3 kuud ago

CheckBot

This antispam plugin provides very simple(one-click) and powerful captcha for your blog.


Constantine Anikin. 900+ active installations Tested with 4.0.32 Updated 6 aastat ago

Quiz

Reduces spam and troll comments by requiring commenters to answer a question.


Andy Skelton, Stephen Rider and Mark Jaquith 800+ active installations Tested with 4.1.32 Updated 6 aastat ago

WP No-Bot Question

Simple question that blocks most spambots (and paid robots) by making them answer a common…


Compdigitec 800+ active installations Tested with 5.4.4 Updated 5 kuud ago

Peter’s Custom Anti-Spam

Stop a lot of spambots from polluting your site by making visitors identify a custom…


Peter Keung 700+ active installations Tested with 4.8.15 Updated 6 aastat ago

BuddyPress Captcha

This plugin adds Google's reCAPTCHA form to your BuddyPress' registration page to keep your community…


Hardeep Asrani 700+ active installations Tested with 4.1.32 Updated 5 aastat ago

yaCAPTCHA

yaCAPTCHA is a CAPTCHA plugin for WordPress that helps you block comment spam from automated…


Rémy Roy 700+ active installations Tested with 3.0.5 Updated 10 aastat ago

MP Spam Be Gone

MP Spam Be Gone is the simplest, most effective Spam blocker.


MikesPickz Web Solutions, Inc. 600+ active installations Tested with 3.3.2 Updated 9 aastat ago

La Sentinelle antispam

Feel safe knowing that your website is safe from spam. La Sentinelle will guard your…


Marcel Pol 600+ active installations Tested with 5.5.3 Updated 4 kuud ago

Antispam for all fields

Plugin to reject spam. Port from same author from http://www.phpbbantispam.com Actually visits the URL from…


Ramon Fincken 500+ active installations Tested with 4.9.16 Updated 2 aastat ago

Antispam

Anti-spam check the robots by behavior. No captcha. Antispam let robots do so as a…


Eugen Bobrowski 500+ active installations Tested with 4.7.19 Updated 4 aastat ago