Nmap scan report for cdn-185-199-108-153.github.com (185.199.108.153)
Host is up (0.072s latency).
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 3.78 seconds