shell:$ nslookup -timeout=2 -retry=1 'sme-portal-assets.s3.eu-west-1.amazonaws.com'
Server:		1.1.1.1
Address:	1.1.1.1#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: 3.5.64.211
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.64.208
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.69.51
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.17.18
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 52.92.17.234
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.66.59
Name:	s3-r-w.eu-west-1.amazonaws.com
Address: 3.5.64.216