Registro IPv4
host: trailhead.salesforce.com
class: IN
ttl: 104
type: A
ip: 151.101.129.145

Registro IPv4
host: trailhead.salesforce.com
class: IN
ttl: 104
type: A
ip: 151.101.65.145

Registro IPv4
host: trailhead.salesforce.com
class: IN
ttl: 104
type: A
ip: 151.101.193.145

Registro IPv4
host: trailhead.salesforce.com
class: IN
ttl: 104
type: A
ip: 151.101.1.145

Información TXT
host: trailhead.salesforce.com
class: IN
ttl: 2280
type: TXT
txt: v=spf1 include:mailgun.org ~all
entries: Array