Bulk DMARC Record Lookup
OtherGive 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.
Pay from $0.01 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-05-05 · $7.72 all-time · settled via coinbase, payAI
ASSESSMENT
updated 1h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 99.9%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 99.9%
- uptime 90d
- 100%
- response p95
- 2006ms
- avg response
- 729ms
- total checks
- 2,740
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.01 (p77 in Other)
- price (min)
- $0.01
- category percentile (min)
- p77 in Other
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction $7.32 30d · 21 buyers
- volume 30d
- $7.32
- buyers 30d
- 21
- settlements 30d
- 61
- first settlement
- 2026-05-05
- last settlement
- 2026-07-28
- top buyer share
- 47% of 30d volume
- trend 7d vs 30d
- 3.94x the 30d daily rate
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $7.72
- settlements all-time
- 100
- median settlement 30d
- $0.01
- max settlement 30d
- $10.00
- settled via
- coinbase, payAI
Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.
Currently sharing this payout address with Curl HTTP Request, US CPI Data & Inflation Report API.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedLooks up DMARC email security records for one or many domains at once
- category
- email-security
- in
- query params
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /dmarc-lookup | $0.01 | Base/Solana | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /dmarc-lookup returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://dmarc-lookup.underscoredone.com/dmarc-lookup'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://dmarc-lookup.underscoredone.com/dmarc-lookup",
"tags": [
"Validation"
],
"mimeType": "application/json",
"description": "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.",
"serviceName": "Bulk DMARC Record Lookup"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"domains": "onescales.com,hillms.com,google.com"
},
"type": "http",
"method": "GET",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"total": 3,
"results": [
{
"domain": "onescales.com",
"rawRecord": "v=DMARC1;p=reject;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];fo=1;",
"domainPolicy": "reject",
"recordStatus": "Valid",
"reportingEnabled": true
},
{
"domain": "hillms.com",
"rawRecord": "v=DMARC1;p=reject;rua=mailto:[email protected];",
"domainPolicy": "reject",
"recordStatus": "Valid",
"reportingEnabled": true
},
{
"domain": "nodmarc-example.com",
"rawRecord": "",
"domainPolicy": "",
"recordStatus": "Not Found",
"reportingEnabled": false
}
],
"api_version": "1.0.0",
"valid_count": 2,
"invalid_count": 0,
"not_found_count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"domains"
],
"properties": {
"domains": {
"type": "string",
"description": "One or more domain names separated by commas. Use bare domain names only — no http://, https://, or www. Example: example.com,mycompany.org,another.io"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"api_version",
"results",
"total",
"valid_count",
"invalid_count",
"not_found_count"
],
"properties": {
"total": {
"type": "integer"
},
"results": {
"type": "array",
"items": {
"type": "object"
}
},
"api_version": {
"type": "string"
},
"valid_count": {
"type": "integer"
},
"invalid_count": {
"type": "integer"
},
"not_found_count": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/bulk-dmarc-record-lookup/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
Shared payout address (2 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 3 services sharing it: a declared convention, not an individually observed measure.
Shared payout address (2 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 3 services sharing the address and can be fractional: a declared convention, not an individually observed measure.
COMPLIANCE
14/14 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) · click to expand
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