Performing a basic port scan (nmap -F officezilla.com)
Nmap scan report for officezilla.com (104.21.87.236)
Host is up (0.00091s latency).
Other addresses for officezilla.com (not scanned): 2606:4700:3037::ac43:946d 2606:4700:3032::6815:57ec 172.67.148.109
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 1.81 seconds