Plugins, die als captcha code kategorisiert sind

Adds Captcha Code anti-spam methods to WordPress forms. Forms include comments form, registration form, lost…

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简洁的中文验证码插件。在 WordPress 登陆、注册或评论表单中加入验证码，支持字母、数字、中文和算术形式。 Adds Captcha Code anti-spam methods to WordPress forms. Supports numbers, alphabets and…

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Adds Mathematical Captcha to be solved in your form to prevent spam.