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

Non-authoritative answer:
Name:	s.youtube.com
Address: 74.125.126.138
Name:	s.youtube.com
Address: 74.125.126.139
Name:	s.youtube.com
Address: 74.125.126.113
Name:	s.youtube.com
Address: 74.125.126.100
Name:	s.youtube.com
Address: 74.125.126.101
Name:	s.youtube.com
Address: 74.125.126.102
Name:	s.youtube.com
Address: 2607:f8b0:4001:c06::8a
Name:	s.youtube.com
Address: 2607:f8b0:4001:c06::65
Name:	s.youtube.com
Address: 2607:f8b0:4001:c06::66
Name:	s.youtube.com
Address: 2607:f8b0:4001:c06::64