shell:$ nslookup -timeout=2 -retry=1 'cdn.1.as2.amazonaws.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
cdn.1.as2.amazonaws.com	canonical name = active-set.1.as2.amazonaws.com.
active-set.1.as2.amazonaws.com	canonical name = secondary.1.as2.amazonaws.com.
Name:	secondary.1.as2.amazonaws.com
Address: 3.170.51.42
Name:	secondary.1.as2.amazonaws.com
Address: 3.170.51.77
Name:	secondary.1.as2.amazonaws.com
Address: 3.170.51.66
Name:	secondary.1.as2.amazonaws.com
Address: 3.170.51.8