Auth & Client-Side Security
high Severity
Free Check

Clickjacking & UI Redress Defense

Evaluates frame embedding defenses to prevent deceptive UI overlays and clickjacking exploits.

Test Your Website for Clickjacking & UI Redress Defense

Run this check along with 90+ automated tests across your domain.

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.