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

Non-authoritative answer:
www.dropbox.com	canonical name = www-env.dropbox-dns.com.
Name:	www-env.dropbox-dns.com
Address: 162.125.8.18
Name:	www-env.dropbox-dns.com
Address: 2620:100:601b:18::a27d:812