Zero Spam makes blocking spam comments and registrations easy.
Plugin Tag: spam
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Spam Master
Real-time firewall and anti-spam for WordPress. Block spam bots, comments, logins & registrations. No CAPTCHA, no slowdown.
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Recaptcha for Login and registration
Recaptcha for Login and registration is a plugin that enables users to add captcha on their login and registration page. The whole idea with this plug …
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BuddyPress reCAPTCHA
This plugin utilizes reCAPTCHA to help your blog stay clear of spam-registrations.
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HTTP/1.1 403 Forbidden header on a failed login
Send an "HTTP/1.1 403 Forbidden" header on a failed login instead of the default "HTTP/1.1 200 OK"
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Disable Trackbacks
Globally disables trackbacks to cut down on spam. Very, very few people legitimately use trackbacks and spammers love them, so it's worthy tradeo …
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Peter’s Custom Anti-Spam
Stop a lot of spambots from polluting your site by making visitors identify a custom word displayed as an image before commenting.

