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

Non-authoritative answer:
Name:	pt.duolingo.com
Address: 34.196.46.26
Name:	pt.duolingo.com
Address: 34.239.191.58
Name:	pt.duolingo.com
Address: 98.88.241.191
Name:	pt.duolingo.com
Address: 98.94.116.37
Name:	pt.duolingo.com
Address: 18.235.80.72
Name:	pt.duolingo.com
Address: 23.21.252.48
Name:	pt.duolingo.com
Address: 54.227.188.155
Name:	pt.duolingo.com
Address: 52.71.103.41