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DNS Lookup: A, MX, TXT, NS Records with SPF and DMARC Check

Resolve public DNS records for a domain (A, AAAA, MX, TXT, NS, CNAME) and report whether SPF and DMARC records are present, with their policies. DNS queries only; no connection is made to the domain itself.

x402: $0.003 per callMCP tool: dns_lookup

Input

ParameterTypeDefaultDescription
domain *stringDomain name, e.g. example.com.
typesarrayRecord types. Default: all.

* required

Source and freshness

Source and licence
Stated in every response (field source).
Last verified
2026-10-03 (hourly check against the live source)

Use it

HTTP (x402)

curl -i "https://api.ambolt.dev/v1/dns-lookup?domain=example.com"

Returns 402 Payment Required with the price until an x402 payment is attached; @x402/fetch does this for you. See Get started.

MCP

{ "mcpServers": { "ambolt": { "url": "https://api.ambolt.dev/mcp" } } }
# then call the tool: dns_lookup

Apify

Not published as an Actor yet.

Example response

{
  "domain": "example.com",
  "records": {
    "A": [
      "172.66.147.243",
      "104.20.23.154"
    ],
    "AAAA": [
      "2606:4700:10::ac42:93f3",
      "2606:4700:10::6814:179a"
    ],
    "NS": [
      "hera.ns.cloudflare.com",
      "elliott.ns.cloudflare.com"
    ],
    "CNAME": [],
    "MX": [
      {
        "exchange": "",
        "priority": 0
      }
    ],
    "TXT": [
      "v=spf1 -all",
      "_k2n1y4vw3qtb4skdx9e7dxt97qrmmq9"
    ]
  },
  "email": {
    "spf": {
      "record": "v=spf1 -all",
      "allMechanism": "-all"
    },
    "dmarc": {
      "record": "v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s",
      "policy": "reject"
    }
  },
  "resolvedAt": "2026-10-02T21:35:41.471Z"
}

Good to know

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