ns2.o2switch.net has no TXT records.
Question and response
Question
dig ns2.o2switch.net. TXT
Answer
The response has no answer records.
Authority
ns2.o2switch.net. 86400 SOA ns1.o2switch.net. support.o2switch.fr. 2019061100 86400 7200 1728000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0