Normal Scan (nmap target.substack-custom-domains.com)
Nmap scan report for target.substack-custom-domains.com (172.64.147.169)
Host is up (0.00084s latency).
Other addresses for target.substack-custom-domains.com (not scanned): 2606:4700:4400::6812:2857 2606:4700:4400::ac40:93a9 104.18.40.87
Not shown: 996 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 5.82 seconds