~/tools / security-headers
Security Headers Checker
Scan HTTP security headers. Grades HSTS, CSP, X-Frame-Options and others, with explanations of what each header protects.
[ WARNING ]
Decent but improvable (68/100) — missing: Permissions-Policy · weak: content-security-policy
── output ─────
68
security_score
HTTP 200 · https://www.dropbox.com/
Strict-Transport-Security (HSTS)
[ STRONG ]
// Forces HTTPS for all connections. Prevents downgrade attacks.
max-age=31536000; includeSubDomains
Content-Security-Policy (CSP)
[ WEAK ]
// Defines which sources of scripts/styles/images are allowed. Prevents XSS.
base-uri 'self'; child-src https://www.dropbox.com/static/serviceworker/ blob:; connect-src https://* ws://127.0.0.1:*/ws blob: wss://dsimports.dropbox.com/; default-src 'none'; font-src 'self' data: https://*; form-action 'self' https://www.dropbox.com/ https://dl-web.dropbox.com/ https://photos.dropbox.com/ https://paper.dropbox.com/ https://showcase.dropbox.com/ https://www.hellofax.com/ https://app.hellofax.com/ https://www.hellosign.com/ https://app.hellosign.com/ https://docsend.com/ https://www.docsend.com/ https://help.dropbox.com/ https://navi.dropbox.jp/ https://a.sprig.com/ https://selfguidedlearning.dropboxbusiness.com/ https://instructorledlearning.dropboxbusiness.com/ https://sales.dropboxbusiness.com/ https://accounts.google.com/ https://api.login.yahoo.com/ https://login.yahoo.com/ https://experience.dropbox.com/ https://pal-test.adyen.com https://2e83413d8036243b-Dropbox-pal-live.adyenpayments.com/ https://onedrive.live.com/picker https://*.sharepoint.com/; frame-ancestors 'self'; frame-src https://* dbapi-6: dbapi-7: dbapi-8: dropbox-client: itms-apps: itms-appss: blob:; img-src https://* data: blob:; media-src https://* blob:; object-src 'self' https://cfl.dropboxstatic.com/static/ https://www.dropboxstatic.com/static/ https://edge-live.dropboxstatic.com/static/; report-to csp-metaserver-whitelist; report-uri https://www.dropbox.com/csp_log?policy_name=metaserver-whitelist; script-src 'unsafe-eval' 'inline-speculation-rules' https://www.dropbox.com/static/api/ https://www.dropbox.com/pithos/ https://cfl.dropboxstatic.com/static/ https://www.dropboxstatic.com/static/ https://edge-live.dropboxstatic.com/static/ https://accounts.google.com/gsi/client https://www.paypal.com/sdk/js https://applepay.cdn-apple.com https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ 'unsafe-inline'; style-src https://* 'unsafe-inline' 'unsafe-eval'; worker-src https://www.dropbox.com/static/serviceworker/ https://www.dropbox.com/encrypted_folder_download/service_worker.js https://www.dropbox.com/service_worker.js blob:
X-Frame-Options
[ STRONG ]
// Prevents clickjacking by blocking iframe embedding from other origins.
SAMEORIGIN
X-Content-Type-Options
[ STRONG ]
// Prevents MIME sniffing. Should be 'nosniff'.
nosniff
Referrer-Policy
[ PRESENT ]
// Controls how much referrer info is leaked when navigating away.
strict-origin-when-cross-origin
Permissions-Policy
[ MISSING ]
// Restricts which browser features (camera, mic, etc.) the page can use.
// missing — add this header to improve security