Akismet

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


Automattic 3+ million active installs Tested with 4.7.3 Updated 1 month ago

WP-Optimize

WP-Optimize is WordPress's most-installed optimization plugin. With it, you can clean up your database easily…


David Anderson, Ruhani Rabin, Team Updraft 500,000+ active installs Tested with 4.7.3 Updated 4 weeks ago

Sucuri Security – Auditing, Malware Scanner and Security Hardening

The Sucuri WordPress Security plugin is a toolset for security integrity monitoring, malware detection, audit…


Sucuri, Inc 300,000+ active installs Tested with 4.6.4 Updated 6 months ago

Disqus Comment System

The Disqus comment system replaces your WordPress comment system with your comments hosted and powered…


Disqus <team@disqus.com> 200,000+ active installs Tested with 4.6.4 Updated 6 months ago

Anti-spam

No spam in comments. No captcha.


webvitaly 100,000+ active installs Tested with 4.9 Updated 4 months ago

Contact Form 7 Honeypot

Contact Form 7 Honeypot – Adds honeypot anti-spam functionality to CF7 forms.


Nocean 100,000+ active installs Tested with 4.7.3 Updated 4 months ago

Email Address Encoder

A lightweight plugin to protect email addresses from email-harvesting robots by encoding them into decimal…


Till Krüss 80,000+ active installs Tested with 4.7.3 Updated 4 months ago

Spam Free WordPress

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


Todd Lahman, LLC 60,000+ active installs Tested with 4.4.8 Updated 2 years ago

Exploit Scanner

Search the files and database of your WordPress install for signs that may indicate that…


Donncha O Caoimh 50,000+ active installs Tested with 4.7.3 Updated 4 months ago

Bad Behavior

Bad Behavior prevents spammers from ever delivering their junk, and in many cases, from ever…


Michael Hampton 50,000+ active installs Tested with 4.6.4 Updated 7 months ago

Spam FireWall, Anti-Spam by CleanTalk

Spam protection, anti-spam, all-in-one, premium plug-in. No comments spam & users spam, no contact form…


СleanTalk <welcome@cleantalk.org> 50,000+ active installs Tested with 4.7.3 Updated 4 days ago

Growmap Anti Spambot Plugin

Defeat automated spambots (even the new 'learning' bots with dynamically named hidden fields) by adding…


Andy Bailey 40,000+ active installs Tested with 4.0.16 Updated 2 years ago

Stop Spammers Spam Prevention

Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam.…


Keith P. Graham 30,000+ active installs Tested with 4.5-alpha Updated 12 months ago

Cookies for Comments

Sets a cookie on a random URL that is then checked when a comment is…


Donncha O Caoimh 30,000+ active installs Tested with 4.7.3 Updated 4 months ago