3D objects-based CAPTCHA to get rid of spam in comments.
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
This plugin adds the ease of use and security of Picatcha's Pix-Captcha to your Gravity Forms in WordPress. Why settle for a difficult to use tex
Safe Signup Form is a WordPress Plugin that will forward a form submission to an email address, while preventing most automated attacks.
A simple comment captcha protection.
This plugin prevents comments spamming using language verification.
Stop user to submit a web address on the very first comments on any post and send those comments to spam folder.
MP Spam Be Gone is the simplest, most effective Spam blocker.
Make users Read More related posts and protect WordPress from spam. Displays extracts from blog posts or useful messages.
SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.
This plugin removes all HTML tags, BBCode tags and links from added comments (including link to author's website)
This plugin utilizes reCAPTCHA to help your blog stay clear of spam-registrations.
防止垃圾评论插件,点击正确的图形提交评论,仿"Clickcha"(Click on the Right picture to submit comments,to prevent spam comme
Automatically scatters invisible links to Project Honey Pot spam traps throughout your wordpress blog to help catch and stop spammers.
This plugin protects your WPMU signup process against spambots with a simple math question.
Returns 'Page Not Found' 404 error message for IP's visiting your blog specified in the IP Ban option on the Discussion Options page.
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
This plugin is discontinued now. Sorry!
Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
Asr verify code was displayed in the image under the comment form or login form.
Asks the visitor making the comment to answer a simple math question. This is intended to prove that the visitor is a human being and not a spam robot
This plugin adds a security question to the Buddypress registration page.
yaCAPTCHA is a CAPTCHA plugin for WordPress that helps you block comment spam from automated bots.
The whole idea to this plugin is to keep spammer robots from posting on your blog, reducing the space taken by spam messages in the database, and prev
Last modify: 04.06.2010 DD.MM.YYYY Trumpcha is a very unique jQuery ajaxed CAPTCHA plugin that requires just one click/(mouse mmovement) instead of t
Adds CAPTCHA anti-spam methods to WordPress on the comment form, registration form. WPMU and BuddyPress compatible.
AdCaptcher.com enables you to build custom captchas. You need an AdCaptcher account to administrate your custom captchas.
Show spam statistics on your blog. (Now merged into SpamTask)