shell:$ nslookup -timeout=2 -retry=1 'signup-truebusinessiservice.truecorp.co.th'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
signup-truebusinessiservice.truecorp.co.th	canonical name = signup-truebusinessiservice.truecorp.co.th.cdn.cloudflare.net.
Name:	signup-truebusinessiservice.truecorp.co.th.cdn.cloudflare.net
Address: 104.18.5.26
Name:	signup-truebusinessiservice.truecorp.co.th.cdn.cloudflare.net
Address: 104.18.4.26