Akismet Anti-Spam

Akismet checks your comments and contact form submissions against our global database of spam to…


Automattic 5+ million active installations Tested with 5.5.1 Updated 2 months ago

Antispam Bee

Antispam plugin with a sophisticated tool set for effective day to day comment and trackback…


pluginkollektiv 500,000+ active installations Tested with 5.4.2 Updated 5 months ago

Email Address Encoder

A lightweight plugin that protects email addresses from email-harvesting robots, by encoding them into decimal…


Till Krüss 100,000+ active installations Tested with 5.4.2 Updated 4 months ago

WordPress Zero Spam

WordPress Zero Spam makes blocking spam & malicious visitors a cinch. Just install, activate and…


Ben Marshall 30,000+ active installations Tested with 5.5.1 Updated 1 month ago

Blackhole for Bad Bots

Blackhole is a WordPress security plugin that detects and traps bad bots in a virtual…


Jeff Starr 20,000+ active installations Tested with 5.5.1 Updated 1 month ago

Gravity Forms Zero Spam

Enhance your Gravity Forms to include anti-spam measures originally based on the work of David…


GoWP 10,000+ active installations Tested with 5.5.1 Updated 2 weeks ago

Spam Destroyer

Kills spam dead in it's tracks. Be gone evil demon spam!


Ryan Hellyer 10,000+ active installations Tested with 5.4.2 Updated 7 months ago

Spam Free WordPress

Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.


Todd Lahman, LLC 9,000+ active installations Tested with 4.4.23 Updated 5 years ago

IP Ban

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


Sandor Kovacs 9,000+ active installations Tested with 4.7.18 Updated 4 years ago

Stop Spam Comments

Dead simple and super lightweight anti-spambot WordPress plugin. No captcha, tricky questions or any other…


Pino Ceniccola 8,000+ active installations Tested with 4.4.23 Updated 5 years ago

Conditional CAPTCHA

Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment,…


Samir Shah 5,000+ active installations Tested with 5.0.10 Updated 2 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 4.9.15 Updated 3 years ago

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 years ago