HTTP Security Headers
mail.active.domains
Final status: 200
http://mail.active.domains (302)https://mail.yandex.com/?pdd_domain=active.domains (302)https://passport.yandex.com/auth?from=mail&origin=hostroot_homer_auth_com&retpath=https%3A%2F%2Fmail.yandex.com%2F%3Fpdd_domain%3Dactive.domains&backpath=https%3A%2F%2Fmail.yandex.com%3Fnoretpath%3D1&mode=add-user&pdd_domain=active.domains (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 origin
Controls how much referrer information is sent to other sites.
Permissions-Policy — missing
Restricts access to browser features like camera, microphone, geolocation.