WordPress Zero Spam

Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site.…

Ben Marshall 20,000+ active installations Tested with 5.2.3 Updated 4 months ago

Stop Spam Comments

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

Pino Ceniccola 10,000+ active installations Tested with 4.4.19 Updated 4 years ago

WP referrer spam blacklist (fight 521+ Referrer Spammers in (Google/Piwik) Analytics)

WordPress plugin to fight with 500+ referrer spammers (like semalt, buttons-for-website and many more).

Rolands Umbrovskis 1,000+ active installations Tested with 4.8.10 Updated 2 years ago

Sz Comment Filter

No spam in comments. blocked by Invisible internal token-code with ajax.This is not used CAPTCHA.

SzMake Fewer than 10 active installations Tested with 4.1.27 Updated 4 years ago