https://docs.oracle.com/ - ssl_error_bad_cert_domain

echo | openssl s_client -connect docs.oracle.com:443 2>/dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | openssl x509 -noout -text -certopt no_pubkey,no_sigdump
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            02:00:00:00:00:01:46:91:cb:0b:26:5b:ef:fe
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: O=Cybertrust Inc, CN=Cybertrust Public SureServer SV CA
        Validity
            Not Before: Jun 12 20:35:45 2014 GMT
            Not After : Jun 12 20:35:45 2015 GMT
        Subject: C=US, ST=MA, L=Cambridge, O=Akamai Technologies, Inc., CN=a248.e.akamai.net
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                keyid:04:98:60:DF:80:1B:96:49:5D:65:56:2D:A5:2C:09:24:0A:EC:DC:B9

            X509v3 CRL Distribution Points: 

                Full Name:
                  URI:http://crl.omniroot.com/PublicSureServerSV.crl

            X509v3 Subject Key Identifier: 
                70:14:DB:83:91:FF:BC:43:DF:68:99:38:06:D6:5C:C7:14:47:AE:C2
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            Netscape Cert Type: 
                SSL Client, SSL Server
            X509v3 Subject Alternative Name: 
                DNS:*.akamaihd.net, DNS:*.akamaihd-staging.net, DNS:a248.e.akamai.net, DNS:*.akamaized.net, DNS:*.akamaized-staging.net