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

Non-authoritative answer:
Name:	vestibulares.estrategia.com
Address: 104.18.2.211
Name:	vestibulares.estrategia.com
Address: 104.18.3.211
Name:	vestibulares.estrategia.com
Address: 2606:4700::6812:3d3
Name:	vestibulares.estrategia.com
Address: 2606:4700::6812:2d3