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

Non-authoritative answer:
Name:	greenhouse.io
Address: 52.24.178.169
Name:	greenhouse.io
Address: 44.230.29.120
Name:	greenhouse.io
Address: 34.212.80.11