shell:$ nslookup -timeout=2 -retry=1 'sky.ns.cloudflare.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	sky.ns.cloudflare.com
Address: 172.64.34.2
Name:	sky.ns.cloudflare.com
Address: 162.159.38.2
Name:	sky.ns.cloudflare.com
Address: 108.162.194.2
Name:	sky.ns.cloudflare.com
Address: 2803:f800:50::6ca2:c202
Name:	sky.ns.cloudflare.com
Address: 2606:4700:50::a29f:2602
Name:	sky.ns.cloudflare.com
Address: 2a06:98c1:50::ac40:2202