Super CAPTCHA Security Suite – Hardened 3D CAPTCHA
Scientifically proven by research from the University of Wollongong as the most secure text-based 3D…
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Scientifically proven by research from the University of Wollongong as the most secure text-based 3D…
BuddyPress – Validate XProfile data with PCRE regular expressions.
Add a stupidly simple and lightweight contact form to your website with [contact-form-zero].
Spam proof contact form that emails you the message and saves it in database.
Stop SPAM! Stop HAKING! No annoying CAPTCHA for your users! As simple as that!
CIDRAM: A PHP-level CIDR/IP-based firewall solution.
A simple free contact form with text-based spam prevention.
Protect your downloads from bots and spiders with a shortcode and Google's no-captcha reCaptcha
Very simple antispam plugin. Users do not need to enter any captcha, working completely on…
This plugin allows you to implement Google reCAPTCHA (CAPTCHA) into your web forms.
Use Radical to block spam comments
A simple and efficient anti-spam plugin
The lightest contact form for WordPress. It's so essential you'll either love it or hate…
EmailToAscii replaces email addresses in the content (post or page) by their ascii translation in…
Once installed, Hide Invisible Google reCAPTCHA Badge will remove immediately the annoying Google reCAPTCHA v3…
Protect your site from spammers and bots with RIDEN’s "neighborhood watch".
This plugin protects your WPMU signup process against spambots with a simple math question.
Comment Runner is a FREE WordPress plugin to reduce or eliminate comment spam. Spam protection,…
Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
A simple comment captcha protection.