SSL Checker (SSLShopper)

The SSLShopper SSL Checker analyzes a domain's SSL certificate and provides detailed information about its issuer, expiration date, and validation type. It verifies that the certificate is properly installed and trusted across major browsers. It also displays the chain of trust to ensure no intermediate certificates are missing.

To use the tool, you simply enter your fully qualified domain name into the search bar on the SSLShopper website and click the check button. The tool will immediately attempt to connect to your server on port 443 to read the certificate. Within seconds, it will generate a report showing if your SSL configuration is valid.

Yes, the SSL Checker tool provided by SSLShopper is completely free to use for unlimited domain checks. You do not need to create an account or provide payment information to verify your certificates. SSLShopper monetizes through affiliate links to Certificate Authorities rather than charging for their diagnostic tools.

Yes, while the tool defaults to checking the standard HTTPS port 443, you can manually specify a different port number. This is incredibly useful for IT administrators who need to verify SSL certificates on mail servers (like port 993) or custom web applications. Just append a colon and the port number to the domain name in the search box.