shell:$ nslookup -timeout=2 -retry=1 'irtelcareapp.airtel.cd.fr5.wgserver.net'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
irtelcareapp.airtel.cd.fr5.wgserver.net	canonical name = wgserver.net.
Name:	wgserver.net
Address: 172.234.212.77
Name:	wgserver.net
Address: 172.239.193.194
Name:	wgserver.net
Address: 172.236.103.15