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 years ago

WP Spam Fighter

Comment spam prevention without moderation, captchas or questions


Henri Benoit 3,000+ active installations Tested with 4.1.29 Updated 5 years ago

Securimage-WP

Block comment spam, malicious logins, and automated registrations by adding the powerful CAPTCHA protection of…


Drew Phillips 3,000+ active installations Tested with 4.9.13 Updated 2 years 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 7 years 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 5.3.2 Updated 4 months ago

CheckBot

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


Constantine Anikin. 1,000+ active installations Tested with 4.0.29 Updated 5 years ago

Quiz

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


Andy Skelton, Stephen Rider and Mark Jaquith 1,000+ active installations Tested with 4.1.29 Updated 5 years ago

Peter’s Custom Anti-Spam

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


Peter Keung 900+ active installations Tested with 4.8.12 Updated 5 years ago

BuddyPress Captcha

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


Hardeep Asrani 900+ active installations Tested with 4.1.29 Updated 4 years ago

Comments Cleaner

This plugin removes all HTML tags, BBCode tags and links from added comments (including link…


Daniel Frużyński 900+ active installations Tested with 3.2.9 Updated 8 years ago

yaCAPTCHA

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


Rémy Roy 900+ active installations Tested with 3.0.5 Updated 10 years 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 900+ active installations Tested with 4.9.13 Updated 1 year 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 4.6.17 Updated 3 years ago

MP Spam Be Gone

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


MikesPickz Web Solutions, Inc. 800+ active installations Tested with 3.3.2 Updated 8 years ago

Auto Approve Comments

Auto approve comments by Commenter (email, name, url), User and Role (Akismet and wpDiscuz compatible)


Federico Andrioli 700+ active installations Tested with 5.2.5 Updated 10 months ago

Antispam

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


Eugen Bobrowski 700+ active installations Tested with 4.7.16 Updated 3 years ago