Website Security Headers Scanner
Analyze your server's HTTP security posture: audit HSTS, CSP, X-Frame-Options, and Referrer-Policy to earn a certified Security Grade (A+ to F).
Protecting Websites with HTTP Security Headers
While an SSL certificate encrypts data in transit between the client and server, it does not prevent browser-level attacks such as cross-site scripting (XSS), clickjacking, or MIME-type sniffing. Implementing HTTP security headers instructs modern web browsers to strictly enforce security boundaries, hardening your digital assets against common web vulnerabilities.
Critical Headers Defined
Strict-Transport-Security (HSTS): Guarantees that browsers will never connect over insecure HTTP, even if a user types http://.
X-Frame-Options: Defends against clickjacking attacks where malicious websites embed your pages inside an invisible iframe to trick users into clicking buttons.
Content-Security-Policy (CSP): The ultimate defense against XSS, explicitly declaring which domains and sources are allowed to execute scripts and load media on your website.
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