IP Ban

Simple IP Ban is a lightweight ip / user agent ban plugin.


Sandor Kovacs 8,000+ active installs Tested with 4.7.5 Updated 8 months ago

Anti-Captcha (anti-spam botblocker)

Anti-Captcha is a transparent spam solution that does not require any end-user interaction.


Filidor Wiese 8,000+ active installs Tested with 4.0.0 Updated 3 years ago

Simple Trackback Validation

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


Michael Woehrer 6,000+ active installs Tested with 2.9.2 Updated 8 years ago

Blackhole for Bad Bots

Protect your site against bad bots by trapping them in a virtual blackhole.


Jeff Starr 4,000+ active installs Tested with 4.8.1 Updated 6 days ago

WP Spam Fighter

Comment spam prevention without moderation, captchas or questions


Henri Benoit 3,000+ active installs Tested with 4.1.18 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 3,000+ active installs Tested with 3.3.2 Updated 5 years ago

BuddyPress Security Check

Combat spam registrations for a BuddyPress-powered site using Google's reCAPTCHA


Shea Bunge 2,000+ active installs Tested with 4.7.5 Updated 4 months ago

BuddyPress Captcha

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


Hardeep Asrani 2,000+ active installs Tested with 4.1.18 Updated 2 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 installs Tested with 4.1.18 Updated 2 years ago

WP referrer spam blacklist (fight 521+ Referrer Spammers in (Google/Piwik) Analytics)

WordPress plugin to fight with 500+ referrer spammers (like semalt, buttons-for-website and many more).


Rolands Umbrovskis 1,000+ active installs Tested with 4.8.1 Updated 1 month ago

Spam Master

Spam Master is the Ultimate Spam Protection plugin that blocks new user registrations and post…


TechGasp 1,000+ active installs Tested with 4.8.1 Updated 6 days ago

yaCAPTCHA

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


Rémy Roy 1,000+ active installs Tested with 3.0.5 Updated 7 years ago