shell:$ nslookup -timeout=2 -retry=1 'sme-portal-assets.s3.eu-west-1.amazonaws.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
sme-portal-assets.s3.eu-west-1.amazonaws.com	canonical name = s3-r-w.eu-west-1.amazonaws.com.
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.16.234
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.218.45.178
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.20.18
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.68.217
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.4.234
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.66.167
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.35.90
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.71.168