Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
Stop SPAM! Stop HAKING! No annoying CAPTCHA for your users! As simple as that!
Zero Spam makes blocking spam comments and registrations easy.
The plugin DigoWatchWP scans your blog posts and pages for changes.
Easiness and effectiveness are the keys for a valid Captcha control. DC generates appealing captcha for your WP blog without compromising usability.
How to make your audience read more and Protect your blog form spam?. By displaying extracts from blog posts or simple messages in a CAPTCHA alternati
Prevent people from registering with emails that contain a subdomain to help reduce spam.
With the Byteplant Email Validator plugin you can easily verify if an email address really exists and is valid (http://www.email-validator.net).
Block visitors based on the country they are visiting from. It can be very useful for websites targeting a specific country or region to block visito
Spam proof contact form that emails you the message and saves it in database.
Anti-spam by verify code that displayed in the image under the comment form.
Security Captcha es un sistema para prevenir spam de cualquier tito, tanto por personas como por scripts creados por personas.
AdCaptcher.com enables you to build custom captchas. You need an AdCaptcher account to administrate your custom captchas.
jQuery UI Slider Captcha
Asks the visitor making the comment to key in the disappeared chinese word. This is intended to prove that the visitor is a human being but a spam rob
Prevents automated SPAM by requiring visitors to answer a question of your choosing (plaintext or regex).
Integrates CaptchaAd anti-spam methods with WordPress including comment, registration spam protection.
Allow only real email address to pass the validation.
Certly Guard automatically removes comments that contain malicious links.
Pictcha is a very unique & secure CAPTCHA.
Foresight makes it easier for a WordPress administrator to stay up-to-date on current WordPress exploits.
CIDRAM: A PHP-level CIDR/IP-based firewall solution.
Spam BLIP stops comment spam before it is posted, using DNS blacklists, existing comments marked as spam, and user defined lists.
Show spam statistics on your blog. (Now merged into SpamTask)
This is the new generation IceCaptcha plugin. The Anti-Spam security system misses no bots and does not disturb a human being.
Remove all links from comments
minotaur - Rid the internet of text CAPTCHAs!
Extremely simple, 0 configuration and 0 user/admin-interaction anti-spam plugin.
The plugin adds links to bloggers posts for readers to contact them without scripts or work-a-rounds like my email is john (at) doe.com.