shell:$ nslookup -timeout=2 -retry=1 'pt.duolingo.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	pt.duolingo.com
Address: 44.217.51.116
Name:	pt.duolingo.com
Address: 35.170.88.94
Name:	pt.duolingo.com
Address: 13.216.39.143
Name:	pt.duolingo.com
Address: 3.217.130.141
Name:	pt.duolingo.com
Address: 3.93.84.192
Name:	pt.duolingo.com
Address: 52.0.160.203
Name:	pt.duolingo.com
Address: 52.21.144.189
Name:	pt.duolingo.com
Address: 3.226.131.130