shell:$ nslookup -timeout=2 -retry=1 'pinterest-media-upload.s3.amazonaws.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
pinterest-media-upload.s3.amazonaws.com	canonical name = s3-1-w.amazonaws.com.
s3-1-w.amazonaws.com	canonical name = s3-w.us-east-1.amazonaws.com.
Name:	s3-w.us-east-1.amazonaws.com
Address: 54.231.128.121
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.234.241
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.182.34.25
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.222.105
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.42.209
Name:	s3-w.us-east-1.amazonaws.com
Address: 54.231.232.65
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.15.204.188
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.92.36