No spam in comments. No captcha.
Slider CAPTCHA is a WordPress plugin that will allow you to replace or add a CAPTCHA field to any WordPress form.
webcrawlers. Automatically turns plaintext e-mails into (enkoded)
Dead simple and super lightweight anti-spambot WordPress plugin. No captcha, tricky questions or any other user interaction required at all.
No moderation, no captchas, no questions, no spam -- simple.
Adds new fields and requites new users to register additional fields (such as first name and last name) or any new field you wish to add.
Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment, or if Akismet thinks their comment is spam.
Secure your website email addresses from being scraped and harvested with the strongest email obfuscator available.
A simple and efficient anti-spam plugin
Upon activation, SpamLord eliminates the potential for automated spam comments, as well as trackback spam.
An easy to use wordpress Captcha plugin to prevent spam on your site. You can use Image Captcha to protect comments and the admin panel.
Plugin to reject spam. Port from same author from http://www.phpbbantispam.com
Actually visits the URL from commenter to spider for spamwords.
A customisable human detection plugin, that isn't annoying. Seriously.
This plugin adds a reCAPTCHA form to BuddyPress registration form to keep your community spam free.
Stop a lot of spambots from polluting your site by making visitors identify a custom word displayed as an image before commenting.
RSS link for this tag.