Performing a basic port scan (nmap -F calastone.org)
Nmap scan report for calastone.org (62.128.197.235)
Host is up (0.14s latency).
rDNS record for 62.128.197.235: no-ptr.as20860.net
Not shown: 98 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 4.68 seconds