DNS records for ubuntu.com

A records

[
  {
    "type": "A",
    "value": "185.125.190.20"
  },
  {
    "type": "A",
    "value": "185.125.190.21"
  },
  {
    "type": "A",
    "value": "185.125.190.29"
  }
]

AAAA records

[
  {
    "type": "AAAA",
    "value": "2620:2d:4000:1::26"
  },
  {
    "type": "AAAA",
    "value": "2620:2d:4000:1::27"
  },
  {
    "type": "AAAA",
    "value": "2620:2d:4000:1::28"
  }
]

MX records

[
  {
    "type": "MX",
    "exchange": "mx.ubuntu.com",
    "priority": 10
  }
]

NS records

[
  {
    "type": "NS",
    "value": "ns1.canonical.com"
  },
  {
    "type": "NS",
    "value": "ns2.canonical.com"
  },
  {
    "type": "NS",
    "value": "ns3.canonical.com"
  }
]

TXT records

[
  {
    "type": "TXT",
    "entries": [
      "v=spf1 include:_spf.canonical.com include:spf.forwardemail.net ~all"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "forward-email-site-verification=6IsURgl2t7"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=8CcvY6fsgRbiFk2nyEaiA9rE-ykXOcWUPjJKlO6P4vk"
    ]
  }
]

SOA records

[
  {
    "type": "SOA",
    "nsname": "ns1.canonical.com",
    "hostmaster": "hostmaster.canonical.com",
    "serial": 2018062457,
    "refresh": 10800,
    "retry": 3600,
    "expire": 604800,
    "minttl": 3600
  }
]

CAA records

[
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "digicert.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "letsencrypt.org"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "letsencrypt.org; accounturi=https://acme-v01.api.letsencrypt.org/acme/reg/32541290"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "iodef",
    "value": "mailto:[email protected]"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "digicert.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "letsencrypt.org"
  }
]

What does this mean?

These records are pulled live from authoritative DNS at request time and re-validated daily. Use them to debug routing, deliverability, and TLS issues for ubuntu.com.

Related tools: DNS Lookup · SPF Checker · DMARC Lookup