DNS records for ietf.org

A records

[
  {
    "type": "A",
    "value": "104.16.45.99"
  },
  {
    "type": "A",
    "value": "104.16.44.99"
  }
]

AAAA records

[
  {
    "type": "AAAA",
    "value": "2606:4700::6810:2c63"
  },
  {
    "type": "AAAA",
    "value": "2606:4700::6810:2d63"
  }
]

MX records

[
  {
    "type": "MX",
    "exchange": "mail2.ietf.org",
    "priority": 0
  }
]

NS records

[
  {
    "type": "NS",
    "value": "jill.ns.cloudflare.com"
  },
  {
    "type": "NS",
    "value": "ken.ns.cloudflare.com"
  }
]

TXT records

[
  {
    "type": "TXT",
    "entries": [
      "vs58md9pf8hu6knlglfda9lk6g"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "ca3-5567e36d3f9947308ac2892e009840cc"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all"
    ]
  }
]

SOA records

[
  {
    "type": "SOA",
    "nsname": "jill.ns.cloudflare.com",
    "hostmaster": "dns.cloudflare.com",
    "serial": 2404762124,
    "refresh": 10000,
    "retry": 2400,
    "expire": 604800,
    "minttl": 1800
  }
]

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 ietf.org.

Related tools: DNS Lookup · SPF Checker · DMARC Lookup