Performing a basic port scan (nmap -F tssa.org.uk)
Nmap scan report for tssa.org.uk (51.142.213.15)
Host is up (0.14s latency).
Not shown: 98 filtered ports
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 5.21 seconds