shell:$ nslookup -timeout=2 -retry=1 'rbt.psi.br'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	rbt.psi.br
Address: 143.255.12.245
Name:	rbt.psi.br
Address: 2804:2b38:200::245