What is an SSL Certificate?
SSL (Secure Sockets Layer) certificates authenticate a website's identity and enable encrypted connections. They are essential for HTTPS, protecting sensitive data like login credentials and payment information during transmission.
What This Tool Checks
Our SSL checker verifies the certificate validity, expiration date, issuer organization, subject details, and supported protocols. It helps developers and system administrators ensure their domains have properly configured SSL/TLS certificates.
API Access
Use our REST API: GET /api/ssl/check?domain=example.com. Returns JSON with certificate details. Free for 100 calls/day.