Browser Support

📚 A reference is provided, for each header, to a site always providing up-to-date information.

Feature	Reference
Strict-Transport-Security	https://caniuse.com/stricttransportsecurity
X-Frame-Options	https://caniuse.com/x-frame-options
X-Content-Type-Options	https://caniuse.com/mdn-http_headers_x-content-type-options
Content-Security-Policy	https://caniuse.com/?search=content-security-policy
X-Permitted-Cross-Domain-Policies	https://www.adobe.com/devnet-docs/acrobatetk/tools/AppSec/xdomain.html
Referrer-Policy	https://caniuse.com/referrer-policy
Clear-Site-Data	https://caniuse.com/?search=Clear-Site-Data
Cross-Origin-Embedder-Policy	https://caniuse.com/mdn-http_headers_cross-origin-embedder-policy
Cross-Origin-Opener-Policy	https://caniuse.com/mdn-http_headers_cross-origin-opener-policy
Cross-Origin-Resource-Policy	https://caniuse.com/mdn-http_headers_cross-origin-resource-policy
Permissions-Policy	https://caniuse.com/permissions-policy
Cache-Control	https://caniuse.com/mdn-http_headers_cache-control
X-DNS-Prefetch-Control	https://caniuse.com/mdn-http_headers_x-dns-prefetch-control
Pragma	https://caniuse.com/mdn-http_headers_pragma
Feature-Policy	https://caniuse.com/feature-policy
Public-Key-Pins	https://caniuse.com/publickeypinning
Expect-CT	https://caniuse.com/mdn-http_headers_expect-ct
X-XSS-Protection	https://caniuse.com/mdn-http_headers_x-xss-protection
Integrity-Policy	https://caniuse.com/mdn-http_headers_integrity-policy
Content-Security-Policy-Report-Only	https://caniuse.com/mdn-http_headers_content-security-policy-report-only
Cross-Origin-Embedder-Policy-Report-Only	https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy-Report-Only#browser_compatibility
Integrity-Policy-Report-Only	https://caniuse.com/mdn-http_headers_integrity-policy-report-only
Permissions-Policy-Report-Only	https://caniuse.com/mdn-http_headers_permissions-policy-report-only