Performing a basic port scan (nmap -F jumbosigns.com)
Nmap scan report for jumbosigns.com (104.21.20.250)
Host is up (0.00086s latency).
Other addresses for jumbosigns.com (not scanned): 2606:4700:3032::ac43:c32e 2606:4700:3033::6815:14fa 172.67.195.46
Not shown: 96 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
8080/tcp open http-proxy
8443/tcp open https-alt
Nmap done: 1 IP address (1 host up) scanned in 2.04 seconds