shell:$ nslookup -timeout=2 -retry=1 'www.pubnub.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.pubnub.com	canonical name = b.shared.global.fastly.net.
Name:	b.shared.global.fastly.net
Address: 146.75.9.167