If a server certificate needs to be checked
It can be done with openssl
# openssl s_client -connect mo.homelinux.net:443other possibilities found on serverfault.com via cmd line
# curl --insecure -vvI https://mo.homelinux.net 2>&1 | awk 'BEGIN { cert=0 } /^\* SSL connection/ { cert=1 } /^\*/ { if (cert) print }'
# nmap -p 443 --script ssl-cert mo.homelinux.net