Performing a basic port scan (nmap -F explorerresearch.com)
Nmap scan report for explorerresearch.com (104.21.96.152)
Host is up (0.00089s latency).
Other addresses for explorerresearch.com (not scanned): 2606:4700:3035::ac43:b7f9 2606:4700:3036::6815:6098 172.67.183.249
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 2.85 seconds