Nmap scan report for external.ffcm1-2.fna.fbcdn.net (157.240.146.17)
Host is up (0.052s latency).
Other addresses for external.ffcm1-2.fna.fbcdn.net (not scanned): 2001:559:c0b4:0:face:b00c:0:a7
rDNS record for 157.240.146.17: fna-fbcdn-shv-02-ffcm1.fbcdn.net
Not shown: 998 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 6.46 seconds