shell:$ nslookup -timeout=2 -retry=1 'myteksi.s3-ap-southeast-1.amazonaws.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
myteksi.s3-ap-southeast-1.amazonaws.com	canonical name = s3-r-w.ap-southeast-1.amazonaws.com.
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.147.125
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.148
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.132.79
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.132.163
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.149.91
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.164.166
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 52.219.132.187
Name:	s3-r-w.ap-southeast-1.amazonaws.com
Address: 3.5.147.214