NullSquare is a companion plugin that facilitates domain verification with the NullSquare security service through a signed REST API challenge. It synchronizes connection and verification status and can display an optional public trust badge in the footer, as a floating element, or via shortcode. The plugin does not perform scans itself; assessments are handled by the external NullSquare service.
NullSquare sits in PulseGate's Security & compliance platforms category. It focuses on verifying domain ownership with an external security service and displaying a trust badge on a WordPress site. It is built as a B2B2C product for wordPress site owners using NullSquare. NullSquare follows a freemium model. NullSquare is available on the web, and it can be self-hosted.
It is developed by nullsquare, and the product first shipped in 2026. Key capabilities include domain verification, trust badge, and status synchronization. The interface is available in English and Polish.
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