DNSDossier
Home / Security Headers

Security Headers Checker

Check common HTTP security headers and show copyable findings for developers or hosting providers.

Planned checkHTTP headers
Output stylePass/warn/fail
AudienceDevelopers
MonetizationHosting support CTA

Planned header checks

HSTS: detect Strict-Transport-Security.
CSP: detect Content-Security-Policy.
Framing: detect X-Frame-Options or CSP frame-ancestors.
Privacy: detect Referrer-Policy and Permissions-Policy.
Contextual hosting CTA slot: If the report suggests no active website, missing DNS setup, or a new domain registration flow, this area can recommend BACLOUD hosting, VPS or DNS parking with affiliate disclosure.