Captcha

1 super security anti-spam captcha plugin for WordPress forms.


simplywordpress 300,000+ active installs Tested with 4.8.2 Updated 6 days ago

Stop Spammers

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


Bryan Hadaway 30,000+ active installs Tested with 4.8.2 Updated 1 month ago

SiteBrains Interactive Spam Blocker

SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the…


SiteBrains 90+ active installs Tested with 3.2.1 Updated 6 years ago

ARS Reg Secure

This plugin helps block bogus registrations by allowing a custom registration field and answer.


Ari Rodriguez 20+ active installs Tested with 3.8.22 Updated 4 years ago

Astounding Spam Prevention

Very effective anti-spam plugin that eliminates comment spam, and registration spam. Combines many effective methods…


Will Jenkins Fewer than 10 active installs Tested with 4.8.2 Updated 4 weeks ago