dbfgroup.com has no TXT records.
Question and response
Question
dig dbfgroup.com. TXT
Answer
The response has no answer records.
Authority
dbfgroup.com. 86400 SOA ns2.ksc.net. hostmaster.ns.ksc.co.th. 2015091110 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0