Performing a basic port scan (nmap -F karbonhq.com)
Nmap scan report for karbonhq.com (52.9.166.110)
Host is up (0.0098s latency).
Other addresses for karbonhq.com (not scanned): 2600:1f1c:471:9d01::c8 2600:1f1c:446:4901::64 50.18.215.94
rDNS record for 52.9.166.110: ec2-52-9-166-110.us-west-1.compute.amazonaws.com
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 2.01 seconds