shell:$ nslookup -timeout=2 -retry=1 'protonvpn.co'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	protonvpn.co
Address: 74.208.236.157
Name:	protonvpn.co
Address: 2607:f1c0:100f:f000::23a