shell:$ nslookup -timeout=2 -retry=1 'chkin.dtac.co.th'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
chkin.dtac.co.th	canonical name = d3nuhxx44r87us.cloudfront.net.
Name:	d3nuhxx44r87us.cloudfront.net
Address: 18.160.213.61
Name:	d3nuhxx44r87us.cloudfront.net
Address: 18.160.213.110
Name:	d3nuhxx44r87us.cloudfront.net
Address: 18.160.213.56
Name:	d3nuhxx44r87us.cloudfront.net
Address: 18.160.213.128
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:7e00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:4e00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:9600:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:3800:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:e00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:a400:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:fa00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:24d2:3600:1b:af9:3100:93a1