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: 3.5.28.194
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.29.160
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.211.57
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.216.153.196
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.182.109.9
Name:	s3-w.us-east-1.amazonaws.com
Address: 52.217.226.121
Name:	s3-w.us-east-1.amazonaws.com
Address: 3.5.30.97
Name:	s3-w.us-east-1.amazonaws.com
Address: 16.182.33.121