DNS records for duolingo.com

A records

[
  {
    "type": "A",
    "value": "34.225.78.173"
  },
  {
    "type": "A",
    "value": "34.230.251.88"
  }
]

MX records

[
  {
    "type": "MX",
    "exchange": "aspmx.l.google.com",
    "priority": 10
  },
  {
    "type": "MX",
    "exchange": "alt1.aspmx.l.google.com",
    "priority": 20
  },
  {
    "type": "MX",
    "exchange": "aspmx5.googlemail.com",
    "priority": 30
  },
  {
    "type": "MX",
    "exchange": "aspmx4.googlemail.com",
    "priority": 30
  },
  {
    "type": "MX",
    "exchange": "aspmx3.googlemail.com",
    "priority": 30
  },
  {
    "type": "MX",
    "exchange": "aspmx2.googlemail.com",
    "priority": 30
  },
  {
    "type": "MX",
    "exchange": "alt2.aspmx.l.google.com",
    "priority": 20
  }
]

NS records

[
  {
    "type": "NS",
    "value": "ns-247.awsdns-30.com"
  },
  {
    "type": "NS",
    "value": "ns-1117.awsdns-11.org"
  },
  {
    "type": "NS",
    "value": "ns-1020.awsdns-63.net"
  },
  {
    "type": "NS",
    "value": "ns-1904.awsdns-46.co.uk"
  }
]

TXT records

[
  {
    "type": "TXT",
    "entries": [
      "e622flctk14s3cs3ccdauh8uth"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "aliyun-site-verification=1acfc148-50be-45c8-a021-3c933fc8eff9"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "atlassian-sending-domain-verification=423a5faf-1cfa-4704-a38a-f7adae302dd6"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "stripe-verification=c8d270a115adc8c5a0a84fb24e17b7d05f66aad648d01e86f15548c6d0254ff5"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "slack-domain-verification=iuNWYimCCkEpnistAJvWc4YOZF8izoZ23TCDek0I"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "pardot_208162_*=c15d5cb1b9f31e26058e1f30bda9e5d65c57cfeea37b34af8e1dd88474460e90"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "apple-domain-verification=bMPI889zOgALUenN"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=975UaH3lkKONB88HjWDDg34p8cdCqyTVSq_KGBAXrmU"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "klaviyo-site-verification=TGmZS7"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "rippling-domain-verification=9692f0635321f04d"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "v=spf1 ip4:100.25.59.11 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:52.73.203.75 ip4:52.70.130.33 include:amazonses.com include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:aspmx.pardot.com ~all"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "klaviyo-site-verification=RKdcF3"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "amazonses:+SIz2NZPqYri3C+PSIyKShZIbuI4rNpbLlES7lmvpu4="
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "openai-domain-verification=dv-A4cFxdrYIEodfG6UiQU0qxnT"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "_vg2bua41v8x489g1y55hg3hr4h3qmj0"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "jetbrains-domain-verification=bt8q7duih10l9pmf5fo5yy8wf"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "docker-verification=b4ead4c5-fd66-42a5-a684-8f2e7f4c1417"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "spacelift-domain-verification=519xtPXm"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "anthropic-domain-verification-z4335b=YssTBALPY7K784Sri4FjVHjd3"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "h1-domain-verification=sjPBeaGqQwEe8YhJ3W8JVNJa7WDQFAzc6AHkURoErkh324Yy"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "openai-domain-verification=dv-ieCpefZUqvVQwb8f7o4SlFye"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "MS=ms66530579"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "pardot_208162_*=610bfb45f202232a79db94c298b30d14332a62a6894e695b025fa7949d7b03fa"
    ]
  }
]

SOA records

[
  {
    "type": "SOA",
    "nsname": "ns-1020.awsdns-63.net",
    "hostmaster": "awsdns-hostmaster.amazon.com",
    "serial": 1,
    "refresh": 7200,
    "retry": 900,
    "expire": 1209600,
    "minttl": 86400
  }
]

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 duolingo.com.

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