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

Non-authoritative answer:
core-ruangguru.s3.amazonaws.com	canonical name = s3-ap-southeast-1-w.amazonaws.com.
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.149.145
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 52.219.124.252
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.151.226
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.149.92
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.147.115
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.147.109
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.149.126
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.151.253