shell:$ nslookup -timeout=2 -retry=1 'cdn.aws.singtel.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	cdn.aws.singtel.com
Address: 108.156.172.54
Name:	cdn.aws.singtel.com
Address: 108.156.172.20
Name:	cdn.aws.singtel.com
Address: 108.156.172.93
Name:	cdn.aws.singtel.com
Address: 108.156.172.6