No spam in comments. No captcha.

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

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

Protege WordPress del SPAM mediante honeypot.

Zero Spam makes blocking spam comments and registrations easy.

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.

Enhance your Gravity Forms to include anti-spam measures originally based on the work of David Walsh's "Zero Spam" technique.

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 auto-spam when spam comment is posted. Pings and trackbacks cheks for real backlinks.

No spam in comments. No captcha.

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

Protuct your blog about spam comments and instantaneously junk messages.

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.