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: 18.238.25.94
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 18.238.25.105
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 18.238.25.10
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 18.238.25.3
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:3200:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:7000:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:6000:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:9400:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:5e00:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:6200:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:f800:1:34bd:6c00:93a1
Name:	d1bmcces0j3vlc.cloudfront.net
Address: 2600:9000:2007:2600:1:34bd:6c00:93a1