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

Non-authoritative answer:
Name:	mux.cool
Address: 172.67.71.197
Name:	mux.cool
Address: 104.26.15.88
Name:	mux.cool
Address: 104.26.14.88
Name:	mux.cool
Address: 2606:4700:20::681a:e58
Name:	mux.cool
Address: 2606:4700:20::681a:f58
Name:	mux.cool
Address: 2606:4700:20::ac43:47c5