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: 52.219.128.200
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 52.219.124.40
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.147.105
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.149.134
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.149.127
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 52.219.184.21
Name:	s3-ap-southeast-1-w.amazonaws.com
Address: 3.5.147.82