primaryns.dnb.com has no TXT records.
Question and response
Question
dig primaryns.dnb.com. TXT
Answer
The response has no answer records.
Authority
dnb.com. 3600 SOA primaryns.dnb.com. dnsadmin.dnb.com. 2021084983 1200 600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0