Redeyed Sentinel is a free WordPress plugin that functions as a self-hosted CAPTCHA and IP-reputation service. It addresses bot activity on forms that are frequent targets, specifically login, registration, lost-password, and comment forms.
The plugin delivers a drop-in CAPTCHA widget for those forms along with server-side verification that checks tokens against Sentinel using a site's Secret Key. The Secret Key remains unexposed in page markup. An optional block log records every prevented attempt. Sentinel stays completely inert until a Site Key and Secret Key are configured, at which point no widget appears, no requests occur, and forms continue to behave exactly as they did previously. It avoids visitor tracking and is designed not to slow down the site.
The tool is delivered as a plugin available through the WordPress.org directory. It is free to install and remains inactive without the required keys. Development, support, and installation details are hosted on WordPress.org alongside user reviews.
Redeyed Sentinel is a Security & compliance platforms product. It focuses on protecting WordPress login, registration, and comment forms from bots and spam without relying on third-party tracking services. It is built as a B2B2C product for wordPress site administrators. Redeyed Sentinel costs nothing to use. The product ships for the web and embeddable surfaces, and it can be self-hosted.
Behind Redeyed Sentinel is Bruted, and the product first shipped in 2026. Key capabilities include CAPTCHA Protection, IP Reputation, and Block Log.
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