shell:$ nslookup -timeout=2 -retry=1 'cdn.who.int.xoolvpn.223444.xyz'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
cdn.who.int.xoolvpn.223444.xyz	canonical name = doserver.223444.xyz.
Name:	doserver.223444.xyz
Address: 209.97.175.65