shell:$ nslookup -timeout=2 -retry=1 'englishtest-stage100.duolingo.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	englishtest-stage100.duolingo.com
Address: 3.208.84.208
Name:	englishtest-stage100.duolingo.com
Address: 34.239.83.130