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

Non-authoritative answer:
Name:	duo.com
Address: 3.167.183.23
Name:	duo.com
Address: 3.167.183.93
Name:	duo.com
Address: 3.167.183.25
Name:	duo.com
Address: 3.167.183.70