AVH First Defense Against Spam

The AVH First Defense Against Spam plugin gives you the ability to block spammers before any content is served.

Peter van der Does 9,000+ active installs Tested with 4.5.9 Updated 1 year ago

Spam Free WordPress

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

Todd Lahman, LLC 40,000+ active installs Tested with 4.4.10 Updated 2 years ago

SiteBrains Interactive Spam Blocker

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

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