Performing a basic port scan (nmap -F yorkschool.com)
Nmap scan report for yorkschool.com (54.209.77.18)
Host is up (0.068s latency).
rDNS record for 54.209.77.18: ec2-54-209-77-18.compute-1.amazonaws.com
Not shown: 97 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
8443/tcp open https-alt
Nmap done: 1 IP address (1 host up) scanned in 4.24 seconds