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

Non-authoritative answer:
Name:	app.groupme.com
Address: 18.154.110.121
Name:	app.groupme.com
Address: 18.154.110.112
Name:	app.groupme.com
Address: 18.154.110.107
Name:	app.groupme.com
Address: 18.154.110.123