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SSL/TLS Check
Verify SSL certificate status, HTTPS availability, and security headers for any domain.
SSL/TLS Check
HSTS Detection
Privacy-First
Check SSL/TLS Certificate
Enter a domain name to verify its SSL certificate, HTTPS availability, and security headers
What is SSL/TLS?
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols that provide secure communication over networks. HTTPS uses TLS to encrypt web traffic.
What We Check
- HTTPS availability and redirects
- SSL/TLS connection status
- HSTS (HTTP Strict Transport Security)
- Server information and response codes
Why It Matters
- Protects sensitive data during transmission
- Verifies website authenticity
- Improves SEO rankings (Google favors HTTPS)
- Builds user trust and credibility
About HSTS (HTTP Strict Transport Security)
HSTS forces browsers to only connect via HTTPS, even if the user types "http://". This prevents downgrade attacks and cookie hijacking.
HSTS Benefits
- Prevents SSL stripping attacks
- Eliminates insecure HTTP requests
- Improves website security posture
- Required for some compliance standards
Privacy-First Design
This SSL check tool uses a Cloudflare Worker to perform secure HTTPS connection tests. We don't log your searches or track which domains you check.