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

Non-authoritative answer:
hello.heroku.com	canonical name = go.pardot.com.
go.pardot.com	canonical name = pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com.
Name:	pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com
Address: 34.237.219.119
Name:	pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com
Address: 3.215.172.219
Name:	pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com
Address: 52.54.96.194
Name:	pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com
Address: 18.208.125.13
Name:	pi-ue1-public-lb-f0209c6950285322.elb.us-east-1.amazonaws.com
Address: 3.92.120.28