shell:$ nslookup -timeout=2 -retry=1 'www.lookback.io'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	www.lookback.io
Address: 52.212.12.152
Name:	www.lookback.io
Address: 52.49.28.85
Name:	www.lookback.io
Address: 54.155.53.46