Registro DMARC
v=DMARC1; p=none; rua=mailto:mailauth-reports@google.com

Registro IPv4
host: gstatic.com
class: IN
ttl: 139
type: A
ip: 172.217.21.3

Servidores DNS Principal (mname) y Secundario (rname)
host: gstatic.com
class: IN
ttl: 84
type: SOA
mname: ns1.google.com
rname: dns-admin.google.com
serial: 692112516
refresh: 900
retry: 900
expire: 1800
minimum-ttl: 60

Información TXT
host: gstatic.com
class: IN
ttl: 294
type: TXT
txt: v=spf1 ?all
entries: Array

Registro IPv6
host: gstatic.com
class: IN
ttl: 294
type: AAAA
ipv6: 2a00:1450:4006:808::2003