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

Non-authoritative answer:
img-video-tracking-vn.ruangguru.com	canonical name = d1l95binabup5n.cloudfront.net.
Name:	d1l95binabup5n.cloudfront.net
Address: 13.227.87.94
Name:	d1l95binabup5n.cloudfront.net
Address: 13.227.87.42
Name:	d1l95binabup5n.cloudfront.net
Address: 13.227.87.126
Name:	d1l95binabup5n.cloudfront.net
Address: 13.227.87.86
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:1800:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:9400:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:200:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:b800:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:a00:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:8c00:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:4600:e:1507:76c0:93a1
Name:	d1l95binabup5n.cloudfront.net
Address: 2600:9000:2873:4800:e:1507:76c0:93a1