_spf.htel.cc has no NS records.
NS records for this zone are defined at htel.cc.
NS records for this zone are defined at htel.cc.
Question and response
Question
dig _spf.htel.cc. NS
Answer
The response has no answer records.
Authority
htel.cc. 43200 SOA ns1.htel.cc. postmaster.htel.cc. 2026012201 18000 3600 604800 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0