Performing a basic port scan (nmap -F covestro.com)
Nmap scan report for covestro.com (20.105.216.15)
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 4.48 seconds