shell:$ nslookup -timeout=2 -retry=1 'www.airtel.co.tz'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
www.airtel.co.tz	canonical name = e6f6yqj.impervadns.net.
Name:	e6f6yqj.impervadns.net
Address: 45.60.135.92