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: 3.171.22.31
Name:	d378b2dm1308t9.cloudfront.net
Address: 3.171.22.47
Name:	d378b2dm1308t9.cloudfront.net
Address: 3.171.22.74
Name:	d378b2dm1308t9.cloudfront.net
Address: 3.171.22.116