~/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.
[ OK ]
Strong security headers (90/100).
── output ─────
90
security_score
HTTP 200 · https://www.gov.uk/government/organisations/driver-and-vehicle-licensing-agency
Strict-Transport-Security (HSTS)
[ STRONG ]
// Forces HTTPS for all connections. Prevents downgrade attacks.
max-age=31536000; preload
Content-Security-Policy (CSP)
[ STRONG ]
// Defines which sources of scripts/styles/images are allowed. Prevents XSS.
default-src 'self'; base-uri 'none'; img-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com lux.speedcurve.com assets.digital.cabinet-office.gov.uk https://img.youtube.com https://i.ytimg.com; script-src 'self' www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com www.gstatic.com *.ytimg.com www.youtube.com www.youtube-nocookie.com 'nonce-zK6wjgpIpRXVJlSW1FCeAw=='; style-src 'self' www.gstatic.com; font-src 'self'; connect-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com lux.speedcurve.com; object-src 'none'; frame-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.youtube.com www.youtube-nocookie.com; frame-ancestors 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk; report-uri https://csp-reporter.publishing.service.gov.uk/report
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
[ PRESENT ]
// Restricts which browser features (camera, mic, etc.) the page can use.
interest-cohort=()