shell:$ nslookup -timeout=2 -retry=1 'facebook-web-clients.appspot.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	facebook-web-clients.appspot.com
Address: 172.217.4.212
Name:	facebook-web-clients.appspot.com
Address: 2607:f8b0:4009:819::2014