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

Non-authoritative answer:
api.heroku.com	canonical name = dvqvzogr4jyz0.cloudfront.net.
Name:	dvqvzogr4jyz0.cloudfront.net
Address: 108.156.184.44
Name:	dvqvzogr4jyz0.cloudfront.net
Address: 108.156.184.79
Name:	dvqvzogr4jyz0.cloudfront.net
Address: 108.156.184.116
Name:	dvqvzogr4jyz0.cloudfront.net
Address: 108.156.184.105