shell:$ nslookup -timeout=2 -retry=1 'www.googleduo.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.googleduo.com	canonical name = googleduo.com.
Name:	googleduo.com
Address: 18.235.41.104
;; communications error to 75.98.161.224#53: timed out