Please don't use that tool for this.
Try:
SSL Certificate Checker - Diagnostic Tool | DigiCert.com
OR
SSL Checker - Test Certificate and Installation (certlogik.com)
OR
openssl s_client -connect EXAMPLE.org:443 -servername EXAMPLE.org
Please don't use that tool for this.
Try:
SSL Certificate Checker - Diagnostic Tool | DigiCert.com
OR
SSL Checker - Test Certificate and Installation (certlogik.com)
OR
openssl s_client -connect EXAMPLE.org:443 -servername EXAMPLE.org