shell:$ nslookup -timeout=2 -retry=1 'www2.assets.heroku.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www2.assets.heroku.com	canonical name = d378b2dm1308t9.cloudfront.net.
Name:	d378b2dm1308t9.cloudfront.net
Address: 18.238.25.15
Name:	d378b2dm1308t9.cloudfront.net
Address: 18.238.25.106
Name:	d378b2dm1308t9.cloudfront.net
Address: 18.238.25.14
Name:	d378b2dm1308t9.cloudfront.net
Address: 18.238.25.100