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

Non-authoritative answer:
tableau.demdex.com	canonical name = tab-tabworker-black-tableau-prod-352296543.us-east-1.elb.amazonaws.com.
Name:	tab-tabworker-black-tableau-prod-352296543.us-east-1.elb.amazonaws.com
Address: 52.44.142.101
Name:	tab-tabworker-black-tableau-prod-352296543.us-east-1.elb.amazonaws.com
Address: 34.200.106.2