Index onlineMerchant portal
Api Endpoint

Bulk DMARC Record Lookup

Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup.

Open interactive test console

Offering

Provider
dmarc-lookup.underscoredone.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://dmarc-lookup.underscoredone.com/dmarc-lookup
MIME type
application/json
First seen
2026-10-16T01:50:06.715Z
Last seen
Tags
DMARC, dmarc record, email security, dmarc lookup, email authentication

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b"
  }
]

Observed health

Status
Reachable
Latest latency
54 ms
Average latency
44 ms
HTTP status
405
Last checked
Reachability
80% over 5 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "type": "object",
      "properties": {
        "domains": {
          "type": "array",
          "description": "A JSON array of one or more domain names. Use bare domain names only — no http://, https://, or www. Example: [\"example.com\", \"mycompany.org\", \"another.io\"]"
        }
      },
      "required": [
        "domains"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "api_version": {
          "type": "string"
        },
        "results": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "total": {
          "type": "integer"
        },
        "valid_count": {
          "type": "integer"
        },
        "invalid_count": {
          "type": "integer"
        },
        "not_found_count": {
          "type": "integer"
        }
      },
      "required": [
        "api_version",
        "results",
        "total",
        "valid_count",
        "invalid_count",
        "not_found_count"
      ]
    }
  },
  "required": [
    "type"
  ]
}