Nmap scan report for contentdelivery.itunes-apple.com.akadns.net (17.56.138.14)
Host is up (0.014s latency).
rDNS record for 17.56.138.14: silverbullet-external-mr.itunes.apple.com
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 4.76 seconds