cleantalk/yii2-antispam
Anti-spam yii2 extension by CleanTalk with protection against spam bots and manual spam
时间：2015-06-30 08:22
exadium/silverstripe-invisible-spam-protection
Very simple anti spam protection based on principle that automated spammers enter bogus information in all form fields. Field is added to form that is hidden using CSS hiding it from human users. Form is only allowed to be submitted if field is empty. Includes an EditableInvisibleSpamField to integr
时间：2015-04-17 09:57
elcodedocle/captchalot
Captcha image generator/validator RESTful web service
时间：2014-10-26 22:34
fabianwennink/iconcaptcha
IconCaptcha is a self-hosted, customizable, easy-to-implement and user-friendly captcha.
时间：未知
fof/anti-spam
Effective tools to manage spammers on your community.
时间：未知
cleantalk/php-antispam
PHP API for antispam service cleantalk.org. Invisible protection from spam, no captches, no puzzles, no animals and no math.
时间：未知
phpmussel/phpmussel
PHP-based anti-virus anti-trojan anti-malware solution.
时间：未知
usarise/turnstile
PHP library for Turnstile, is Cloudflare’s smart CAPTCHA alternative. It can be embedded into any website without sending traffic through Cloudflare and works without showing visitors a CAPTCHA.
时间：未知