shell:$ nslookup -timeout=2 -retry=1 '5cl7anf.impervadns.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	5cl7anf.impervadns.net
Address: 45.60.195.194
Name:	5cl7anf.impervadns.net
Address: 2a02:e981:2a::c2