Performing a basic port scan (nmap -F ussignal.com)
Nmap scan report for ussignal.com (104.16.55.77)
Host is up (0.00081s latency).
Other addresses for ussignal.com (not scanned): 2606:4700::6810:374d 2606:4700::6812:8a4c 104.18.138.76
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 2.07 seconds