Why Check SSL Certificates?
SSL (Secure Sockets Layer) is the standard technology for keeping an internet connection secure. If your SSL certificate expires, browsers will display a scary security warning to your visitors, causing a massive drop in traffic and trust.
What does this tool check?
- Expiration Date: The exact date when your certificate becomes invalid.
- Issuer: The Certificate Authority (CA) that issued the certificate (e.g., Let's Encrypt, DigiCert).
- Chain Validation: Ensures the server is correctly serving the certificate.