UsageRay is a read-only evidence scanner. It helps administrators answer a cautious question: where is this plugin visibly used?
The first release checks:
Results link directly to matching content when WordPress provides an edit screen.
UsageRay does not deactivate, delete, or modify plugins or site content. A result of “no visible usage detected” does not prove that a plugin is unnecessary. Security, caching, SEO, backups, integrations, and other background functionality may leave no visible content evidence.