_spf.aloojamiento.com has no CNAME records.
Question and response
Question
dig _spf.aloojamiento.com. NS
Answer
The response has no answer records.
Authority
aloojamiento.com. 3481 SOA ns3.aloojamiento.com. info.doominio.com. 2026022302 3600 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0