_spf6.mailprofiler.ch has no CNAME records.
Question and response
Question
dig _spf6.mailprofiler.ch. NS
Answer
The response has no answer records.
Authority
mailprofiler.ch. 9464 SOA ns1.mailprofiler.ch. postmaster.mailprofiler.ch. 2024112501 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0