Performing a basic port scan (nmap -F derholzspan.de.tl)
Nmap scan report for derholzspan.de.tl (193.238.27.22)
Host is up (0.15s latency).
rDNS record for 193.238.27.22: de.tl
Not shown: 97 filtered ports
PORT STATE SERVICE
25/tcp closed smtp
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 8.65 seconds