Servidores DNS Principal (mname) y Secundario (rname)
host: githubusercontent.com
class: IN
ttl: 1004
type: SOA
mname: dns1.p01.nsone.net
rname: hostmaster.nsone.net
serial: 1656467272
refresh: 43200
retry: 7200
expire: 1209600
minimum-ttl: 3600

Información TXT
host: githubusercontent.com
class: IN
ttl: 90
type: TXT
txt: globalsign-domain-verification=2wiwCKYW7kQ6LJntfIcdi5EG56lUlQIRj_VGJnEEKb
entries: Array

Información TXT
host: githubusercontent.com
class: IN
ttl: 90
type: TXT
txt: v=spf1 a -all
entries: Array