HTTP Security Headers
grandpalais.fr
Final status: 200
http://grandpalais.fr (302)https://grandpalais.fr/ (302)https://www.grandpalais.fr/ (301)https://www.grandpalais.fr/fr (200)
Security Headers
Strict-Transport-Security (HSTS)
Forces browsers to use HTTPS, preventing protocol-downgrade attacks.
Content-Security-Policy (CSP)
Limits where scripts/resources can load from — the strongest defense against XSS.
X-Frame-Options SAMEORIGIN
Blocks the site from being embedded in iframes (clickjacking protection).
X-Content-Type-Options
Stops browsers from MIME-sniffing responses away from the declared type.
Referrer-Policy no-referrer-when-downgrade
Controls how much referrer information is sent to other sites.
Permissions-Policy — missing
Restricts access to browser features like camera, microphone, geolocation.