OpenSSL Online Certificate Info

#!/bin/bash

# Replace with the hostname/FQDN of the Server
sslhost=github.com
# Replace with the SSL port of the Server
sslport=443

sslcert=$(openssl s_client -showcerts -connect "$sslhost":"$sslport" < /dev/null)
echo "$sslcert" | openssl x509 -noout -serial
echo "$sslcert" | openssl x509 -noout -hash
echo "$sslcert" | openssl x509 -noout -dates
echo "$sslcert" | openssl x509 -noout -fingerprint -md5
echo "$sslcert" | openssl x509 -noout -fingerprint -sha1
echo "$sslcert" | openssl x509 -noout -fingerprint -sha256
echo "$sslcert" | openssl x509 -noout -fingerprint -sha512