Security header monitoring guide
What it is
Security headers are HTTP response headers that tell the browser how to behave: HSTS enforces HTTPS, CSP restricts script and resource sources, X-Frame-Options prevents clickjacking, X-Content-Type-Options prevents MIME sniffing. Monitoring them means checking that the right headers are present and correctly configured.
Why it matters
Missing or weak security headers leave you open to XSS, clickjacking, downgrade attacks, and information leakage. Headers are a high-impact, low-effort way to harden your app. Monitoring catches drift (e.g. a deploy that drops a header) and misconfigurations.
How Barrion checks it
Barrion requests your pages and inspects the response headers. We check for Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and COEP/COOP/CORP where relevant. We report missing or weak values and link to fix guides.
