shell:$ nslookup -timeout=2 -retry=1 'cache-ssl.celtra.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	cache-ssl.celtra.com
Address: 13.249.141.124
Name:	cache-ssl.celtra.com
Address: 13.249.141.22
Name:	cache-ssl.celtra.com
Address: 13.249.141.117
Name:	cache-ssl.celtra.com
Address: 13.249.141.72