shell:$ nslookup -timeout=2 -retry=1 'www.lookback.io'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	www.lookback.io
Address: 52.208.156.98
Name:	www.lookback.io
Address: 34.250.56.120
Name:	www.lookback.io
Address: 52.212.69.163