sasl6.shellrent.com has no TXT records.
Question and response
Question
dig sasl6.shellrent.com. TXT
Answer
The response has no answer records.
Authority
shellrent.com. 1800 SOA ada.ns.cloudflare.com. dns.cloudflare.com. 2397665245 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0