Website Security Scanner

Free instant analysis of any domain: SSL certificates, security headers, DNS health, technology stack, hosting provider, and overall security score.

Checks SSL, headers, DNS, tech stack, hosting, and performance in seconds.

What We Check & Why It Matters

SSL / TLS Certificate

Encrypts data between your visitors and your server. Without it, passwords and credit cards travel in plain text. We check validity, strength, and expiration.

Security Headers

HTTP response headers that tell browsers how to behave. CSP stops XSS attacks. HSTS prevents downgrade attacks. Missing headers = easy targets.

DNS Health

SPF and DMARC records prevent email spoofing. Without them, attackers can send fake emails that appear to come from your domain. DNSSEC prevents DNS hijacking.

Technology Stack

Knowing what software runs your site matters for security. Outdated WordPress plugins, old PHP versions, or exposed server info can be exploited by attackers.

Performance

Slow sites lose visitors. We measure response time, redirects, and page size. Every extra redirect is a security risk and a speed penalty.

Overall Score

We combine SSL, headers, DNS, and tech into a single A-F grade. See how you compare and get prioritized fixes to improve your security posture.