Servidores DNS Principal (mname) y Secundario (rname)
host: pisec.net
class: IN
ttl: 1800
type: SOA
mname: dora.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2377045016
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: pisec.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:_spf.mailersend.net -all
entries: Array