shell:$ nslookup -timeout=2 -retry=1 'www.varnish-cache.org'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.varnish-cache.org	canonical name = varnish-cache.org.
Name:	varnish-cache.org
Address: 176.58.90.154
Name:	varnish-cache.org
Address: 2a00:dd80:3e::255