Stop spam bots from registering, logging in and commenting on your site without using annoying Captcha codes, puzzles or faulty blacklists.
Block 250+ spam sites, such as semalt.com and 4webmasters.org! Keep your website safe and your Google Analytics statistics clean and accurate.
LH Zero Spam makes blocking spam comments and registrations easy.
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site. Supports Gravity Forms, Ninja Forms, BuddyPress & mo
Blue Captcha is a powerful and highly customized WordPress plugin that effectively protects your WP blogs from spammers and unwanted persons.
No spam in comments. No captcha.
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 comments. blocked by Invisible internal token-code with ajax.This is not used CAPTCHA.
Enhance your Gravity Forms to include anti-spam measures originally based on the work of David Walsh's "Zero Spam" technique.
WP Anti Spam can anti automated spambots or anti spams by"comment","ip","name","email","url".
Very light invisible method to block auto-spam when spam comment is posted. Pings and trackbacks cheks for real backlink.
This plugin Adds Crazy Additional Password Protection and Security to your blog.
Extend Visitor Maps and Who's Online with extra features, such as IP and referer banning. Display the referring host name and search string.
Simple, but strong HTTP security, to prevent Brute force attack. One-click solution!
Smart invisible captcha for wordpress comments
This plugin allows WordPress to block over 95% of spam comments using a time-based hash.
This plugin prevents users from commenting or viewing your website if a comment of theirs has been marked as spam.
Remove known spammer email addresses from wp_mail()'s To, Cc, and Bcc fields.
With this wp antispam plugin you can stop spammers commenting on your blog with poor comments looking for links.
SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.