shell:$ nslookup -timeout=2 -retry=1 'duolingo.net'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	duolingo.net
Address: 54.165.18.84
Name:	duolingo.net
Address: 32.193.128.14
Name:	duolingo.net
Address: 54.243.202.207
Name:	duolingo.net
Address: 54.210.133.181