NSToolKit
NSToolKit
free network tools

DNS records for stackoverflow.com

A records

[
  {
    "type": "A",
    "value": "198.252.206.1"
  }
]

MX records

[
  {
    "type": "MX",
    "exchange": "alt3.aspmx.l.google.com",
    "priority": 10
  },
  {
    "type": "MX",
    "exchange": "alt1.aspmx.l.google.com",
    "priority": 5
  },
  {
    "type": "MX",
    "exchange": "alt4.aspmx.l.google.com",
    "priority": 10
  },
  {
    "type": "MX",
    "exchange": "aspmx.l.google.com",
    "priority": 1
  },
  {
    "type": "MX",
    "exchange": "alt2.aspmx.l.google.com",
    "priority": 5
  }
]

NS records

[
  {
    "type": "NS",
    "value": "sureena.ns.cloudflare.com"
  },
  {
    "type": "NS",
    "value": "damian.ns.cloudflare.com"
  }
]

TXT records

[
  {
    "type": "TXT",
    "entries": [
      "v=spf1 ip4:52.38.191.241 include:_spf1.stackoverflow.com ~all"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=2Bi6SYw5skkRexdtdLPL2gpxeIhLxnYVqITVP9Htl3w"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "onetrust-domain-verification=e445562296a64c649ae3d520230b8c4c"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "profound-domain-verification-5p599x=hWudYd2Du6WOYOod5ko9Rwnp8"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "MS=ms52592611"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "make-domain-verification=eec31159-f381-4f38-9d89-e59123dd023e"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "openai-domain-verification=dv-GLNufzbWDzAq0fDXHD6jxeCK"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=o3EMam8yBGo1yEjyybIiZcOunGHOQKpo8JmOtp9n1BU"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "atlassian-domain-verification=byLeZgl3MIcfOqwWuMhq8Fhr/1zem/jIaouJegvDZbBKUU5OqhwDjdpkyYg5CTzm"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "ZOOM_verify_AbkNwz5bBl0eurcDKyhhuk"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "adobe-idp-site-verification=25ba5203f3687c9cd6ee3223ee5de1528917828d1da3ebd3bd9a44094cbfc4ac"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "apple-domain-verification=O9jlnJXAQ7sNSZqC"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "onetrust-domain-verification=0d9d67f856334905a54256085a5768b3"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=ctogLnZNAdc_CXq8yOhODMLpmugGynjxKecKHDz4oL8"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "docker-verification=d65aee54-9091-4ceb-b792-61f5d5804050"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "cursor-domain-verification-sb0ayf=Pk6AyptQuTpzpcuSlfYGWloxv"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "anthropic-domain-verification-q70207=cKyy0llXkD10O4rDQpWz8tQ5K"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "ibmid=4e7cbbb3-5f12-40b4-96c7-5b064347b822"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "docusign=4262531d-29f4-4a62-9f33-ae9f66f5247b"
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "v=MCPv1; k=ed25519; p=VhBofO8RaYvTvHT7q5tTty+HQeCU8R6h5Y8k/sj20So="
    ]
  },
  {
    "type": "TXT",
    "entries": [
      "google-site-verification=rdWtMbplKjbRHGr2dNONfwkqithlUvjr3u6i8QEz_mo"
    ]
  }
]

SOA records

[
  {
    "type": "SOA",
    "nsname": "damian.ns.cloudflare.com",
    "hostmaster": "dns.cloudflare.com",
    "serial": 2404893426,
    "refresh": 10000,
    "retry": 2400,
    "expire": 604800,
    "minttl": 1800
  }
]

CAA records

[
  {
    "type": "CAA",
    "critical": 128,
    "tag": "iodef",
    "value": "mailto:[email protected]"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "digicert.com; cansignhttpexchanges=yes"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "ssl.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "sectigo.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "sectigo.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "ssl.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "letsencrypt.org"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "comodoca.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "pki.goog; cansignhttpexchanges=yes"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issue",
    "value": "pki.goog; cansignhttpexchanges=yes"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "comodoca.com"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "letsencrypt.org"
  },
  {
    "type": "CAA",
    "critical": 0,
    "tag": "issuewild",
    "value": "digicert.com; cansignhttpexchanges=yes"
  }
]

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 stackoverflow.com.

Related tools: DNS Lookup · SPF Checker · DMARC Lookup