SSL Certificate Checker
Check whether a website is served over HTTPS and inspect its HSTS header configuration.
Examples
SSL / HTTPS Checker
Checks whether a site is served over HTTPS and inspects its HSTS configuration.
What This Tool Checks
- HTTPS Verification: Confirms whether the site is served over HTTPS
- HSTS Check: Detects HTTP Strict Transport Security header and its configuration
- Security Grade: A+ to F grading based on HTTPS and HSTS configuration
- Redirect Detection: Checks whether HTTP traffic redirects to HTTPS
- Security Recommendations: Actionable steps to improve your SSL/TLS configuration
Limitations
This tool checks HTTPS connectivity and HSTS headers from our server. It does not inspect the certificate chain, expiry date, or cipher suites: use a dedicated TLS testing tool for that level of detail.