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Warns teachers when a page would be blocked for students, with a classified dependency breakdown and a request-access action. ddeny Teacher Guardrail shows teachers, in real time, when a page would be blocked for students under the district's default-deny allowlist. Blocked pages get a clear red bar; working pages stay out of the way. When a site is needed, teachers click Request access — or record a visit across a multi-page tool — and the extension captures the exact resources the site depends on, sorted into what's necessary versus advertising/tracking, so an administrator can approve it quickly. Advisory only: it observes locally and never blocks the teacher's own browsing.
rating_count is the Chrome Web Store ratings count, not a written-review count.