shell:$ nslookup -timeout=2 -retry=1 'vn-oc.ruangguru.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
vn-oc.ruangguru.com	canonical name = d1bmcces0j3vlc.cloudfront.net.
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 52.85.12.101
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 52.85.12.110
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 52.85.12.84
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 52.85.12.90
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:ee00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:ea00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:c800:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:6c00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:9800:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:fa00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:1e00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:8e00:1:34bd:6c00:93a1