ptr685.privent.ch has no TXT records.
Question and response
Question
dig privent.ch. TXT
Answer
The response has no answer records.
Authority
privent.ch. 1800 SOA ns1.digitalocean.com. hostmaster.privent.ch. 1767377870 10800 3600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0