shell:$ nslookup -timeout=2 -retry=1 'assets.zendesk.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
assets.zendesk.com	canonical name = cf.zdassets.com.
Name:	cf.zdassets.com
Address: 216.198.54.3
Name:	cf.zdassets.com
Address: 216.198.53.3