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

(0)

Block spam comments definitely without settings or Captcha.

(0)

CAPTCHA Solution is a CAPTCHA module intended to be called from other plugins. It is originally created for my Contact Form 7 plugin.

(0)

SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.

(0)

A simple and efficient anti-spam plugin

(0)

A simple to use plugin that helps you keep your WordPress site clean of spam comments.

(0)

WP-Mail-Validator is an anti-spam plugin. It provides mail-address validation in 5 ways:

(0)

Spam BLIP stops comment spam before it is posted, using DNS blacklists, existing comments marked as spam, and user defined lists.

(0)