Registro IPv4
host: 21rs.es
class: IN
ttl: 300
type: A
ip: 82.98.135.43

Registro CNAME (Alias)
host: blogs.21rs.es
class: IN
ttl: 300
type: CNAME
target: 21rs.es

Servidores DNS Principal (mname) y Secundario (rname)
host: 21rs.es
class: IN
ttl: 300
type: SOA
mname: ns.dinahosting.com
rname: hostmaster.21rs.es
serial: 2016111001
refresh: 3600
retry: 120
expire: 1209600
minimum-ttl: 300

Registro CNAME (Alias)
host: blogs.21rs.es
class: IN
ttl: 300
type: CNAME
target: 21rs.es