Headers Security
high Severity
Free Check
Frame Security Policy (X-Frame-Options)
Controls whether your page can be embedded in iframes on other sites, protecting against clickjacking.
Why It Matters
Clickjacking deceives users into clicking hidden buttons or sensitive actions (e.g. wire transfers or profile deletion) overlaid inside transparent iframes.
How We Check This
We check for X-Frame-Options set to DENY or SAMEORIGIN, or CSP frame-ancestors directive.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
add_header X-Frame-Options "DENY" always;
Frequently Asked Questions
Is X-Frame-Options deprecated in favor of CSP?
CSP frame-ancestors is more modern, but setting X-Frame-Options: DENY ensures legacy browser protection.