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

Non-authoritative answer:
Name:	rocketreach.co
Address: 104.18.18.17
Name:	rocketreach.co
Address: 104.18.19.17
Name:	rocketreach.co
Address: 2606:4700::6812:1211
Name:	rocketreach.co
Address: 2606:4700::6812:1311