Auth & Client-Side Security
high Severity
Free Check
Clickjacking & UI Redress Defense
Evaluates frame embedding defenses to prevent deceptive UI overlays and clickjacking exploits.
Why It Matters
Attackers load your application inside an invisible iframe to trick users into executing destructive actions.
How We Check This
We verify that Content-Security-Policy frame-ancestors is set to 'none' or 'self' alongside X-Frame-Options: DENY.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
add_header Content-Security-Policy "frame-ancestors 'none';" always; add_header X-Frame-Options "DENY" always;
Frequently Asked Questions
Can frame-busting JavaScript prevent clickjacking?
No, frame-busting JS can be bypassed using iframe sandbox attributes. HTTP headers are required.