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

Non-authoritative answer:
www.feitsui.com	canonical name = o5.feitsui.com.
Name:	o5.feitsui.com
Address: 140.238.26.13