Block SPAM without any type of CAPTCHA - plugin add "HoneyTrap" (and a few other tricks) for comment form to block SPAMbots.
An extremely powerful anti-spam plugin that blocks Spam-bots without annoying captcha images.
This plugin allows you to implement super security captcha form into web forms.
No spam in comments. No captcha.
An exceptionally powerful WordPress anti-spam plugin that eliminates comment spam, trackback spam, contact form spam & registration spam.
WordPress plugin to fight with 300 referrer spammers (like semalt, buttons-for-website and many more).
Prevents automated SPAM by requiring visitors to answer a question of your choosing (plaintext or regex).
Block unwanted visitors from viewing your WordPress site.
Dead simple and super lightweight anti-spambot WordPress plugin. No captcha, tricky questions or any other user interaction required at all.
Protect email addresses and mailto links from spambots and spamming. Easy to use without configuration.
Blocks referer/referral spam from accessing your site and cleans up your Google Analytics in the process!
This plugin allows you to implement Google Captcha (reCAPTCHA) into web forms.
If you see referral spam in your analytics and would like to block it, this plugin is for you.
Encode mailto links, email addresses, phone numbers and any text to hide them from (spam)bots. Mailto links will be protected automatically.
Stop your website email addresses from being scraped and harvested by spammers with the best email obfuscator protection available.
A lightweight plugin to protect email addresses from email-harvesting robots by encoding them into decimal and hexadecimal entities.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site. Supports Gravity Forms, Ninja Forms, BuddyPress & mo
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
Zero Spam makes blocking spam comments and registrations easy.
Protect email addresses from being harvested by spammers and spambots, obfuscating them. Your visitors can still see email addresses.
Block 250+ spam sites, such as semalt.com and 4webmasters.org! Keep your website safe and your Google Analytics statistics clean and accurate.
Super-lightweight plugin adds Google's No Captcha reCAPTCHA box to your BuddyPress registration form. Tough on bots, Easy on humans!
Are you frustrated by using CAPTCHAS in comments? We provide you a good and simple solution to combat bot spam and human spam without captcha or calcu
Comment spam prevention without moderation, captchas or questions
No spam in the Contact Form 7.Add anti-spambot functionality to the CF7,it blocks spam without using CAPTCHA.
No spam in comments. blocked by Invisible internal token-code with ajax.This is not used CAPTCHA.