shell:$ nslookup -timeout=2 -retry=1 'www.itu.int'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.itu.int	canonical name = www46.site.itu.ch.
www46.site.itu.ch	canonical name = sdc.itu.ch.
Name:	sdc.itu.ch
Address: 156.106.253.250
Name:	sdc.itu.ch
Address: 2a00:7580:60:a252::3250