shell:$ nslookup -timeout=2 -retry=1 'duolingo.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	duolingo.net
Address: 52.206.229.75
Name:	duolingo.net
Address: 100.30.80.193
Name:	duolingo.net
Address: 3.214.33.47