What it reads
The Permissions-Policy header.
Check 28 of 54 · Web and TLS
Permissions-Policy, explained.
Switching off browser features you never use, such as the camera and microphone.
Engine 1.57.0, read 25 October 2026
Free checkAdviceReliability: Definitive
Is your website set up safely?
What the check does, and where it stops.
Why it matters
A feature that is switched off cannot be abused by an injected script.
What a finding looks like
What it finds is shown with a recommendation. It is advice, so it never lowers your score. If the check cannot finish, it is recorded as unknown: it carries no penalty, and it is never a pass.
Where its limits are
Presence only.
ReliabilityDefinitive: reads a published value
Check 28 is one of 15 in Web and TLS. See it in its row on the scanner page, beside the rest of Web and TLS.
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