Nmap scan report for developer.mozilla.org (151.101.129.91)
Host is up (0.076s latency).
Other addresses for developer.mozilla.org (not scanned): 151.101.65.91 151.101.193.91 151.101.1.91 2a04:4e42:400::347 2a04:4e42::347 2a04:4e42:600::347 2a04:4e42:200::347
Not shown: 98 filtered tcp ports (no-response)
PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 3.86 seconds