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: 52.85.193.83
Name:	d3nuhxx44r87us.cloudfront.net
Address: 52.85.193.43
Name:	d3nuhxx44r87us.cloudfront.net
Address: 52.85.193.17
Name:	d3nuhxx44r87us.cloudfront.net
Address: 52.85.193.122
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:3c00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:d600:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:b000:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:6200:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:8800:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:ba00:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:e000:1b:af9:3100:93a1
Name:	d3nuhxx44r87us.cloudfront.net
Address: 2600:9000:215a:ae00:1b:af9:3100:93a1