No spam in comments. No captcha.

Very effective anti-spam plugin that eliminates comment spam, and registration spam. Combines many effective methods for identifying spammers and keeping them off your site. THe plugin is designed to be very light weight so it will not interfere with the operation of your website. Easy to install and default options work perfectly on most sites. Will not lock you out. No Captchas needed. Works with JetPack Protect.

This plugin Adds Crazy Additional Password Protection and Security to your blog.

Trick the spambots. Real dynamic JavaScript encryption of your email addresses.

Zero Spam makes blocking spam comments and registrations easy.

Light and invisible method to block auto-spam when a spam comment is posted. Pings and trackbacks check for real backlinks.

Smart invisible captcha for wordpress comments

Stop spam bots from registering, logging in, filling out contact forms and commenting on your site without using annoying Captcha codes or puzzles.

Remove known spammer email addresses from wp_mail()'s To, Cc, and Bcc fields.

Protect your blog from comment spam and blocks other spam attacks in real time.

No spam in comments. No captcha.

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

Light and invisible method to block spam when spam is posted.

No spam in comments. No captcha.

Protuct your blog about spam comments and instantaneously junk messages.