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🛡️ Free Vulnerability & Header Scanner

Website Security Analyzer

Scan your domain's HTTP response headers, content security policies (CSP), clickjacking defenses, and SSL/TLS configuration against modern web standards.

Security Audit Grade
Grade B (80/100)
Good baseline security with room for header hardening.
B

Detect unexpected downtime and security drops immediately.

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Understanding Security Headers

What are HTTP Security Headers?

Security headers instruct user browsers how to safely interact with your site, blocking cross-site scripting (XSS), clickjacking, MIME-sniffing, and unauthorized framing.

Why does Google value HTTPS and security posture?

Google treats HTTPS as an active ranking signal and warns users away from sites exhibiting insecure connections or unencrypted forms.

What is Strict-Transport-Security (HSTS)?

HSTS forces browsers to connect exclusively over HTTPS, preventing SSL stripping attacks and man-in-the-middle exploits.