DNS Zone Audit
Audit a DNS zone against the rules that make a zone illegal or make it quietly not work. Reports a CNAME at the apex, which is forbidden because the apex must also carry SOA and NS; a CNAME alongside any other record type; an MX, NS or CNAME pointing at a name that is itself a CNAME, whose failure is intermittent rather than total; a target inside the zone the zone does not define; a cyclic CNAME chain; TTLs that differ within one record set; and a record outside the zone.
Tradingofflineeip155:8453Exactvia cdp
DnsZone validationInfrastructureDeveloper toolingRelease gate
Settlements · 30d
218↓ 56%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$25.35
Verified settled volume
256 settlements proven x402 by their on-chain EIP-3009 marker.
$0.200
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-04 08:40Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x25e8245f07d5e4873987293dad666afbe56a9608The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.2USDC≈ $0.2 USD
on Base · exact scheme
Pay 0.2 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.
- Paid to
- 0x25e8…a9608
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 200000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"zone": "example.test",
"records": [
{
"ttl": 3600,
"name": "example.test",
"type": "A",
"value": "203.0.113.10"
},
{
"ttl": 3600,
"name": "example.test",
"type": "CNAME",
"value": "hosting.vendor.test"
},
{
"ttl": 3600,
"name": "example.test",
"type": "MX",
"value": "10 mail.example.test"
},
{
"ttl": 3600,
"name": "mail.example.test",
"type": "CNAME",
"value": "mx.vendor.test"
},
{
"ttl": 300,
"name": "www.example.test",
"type": "A",
"value": "203.0.113.11"
},
{
"ttl": 60,
"name": "www.example.test",
"type": "A",
"value": "203.0.113.11"
},
{
"ttl": 3600,
"name": "*.example.test",
"type": "A",
"value": "203.0.113.12"
},
{
"ttl": 3600,
"name": "old.example.test",
"type": "CNAME",
"value": "gone.example.test"
},
{
"ttl": 3600,
"name": "other.test",
"type": "A",
"value": "203.0.113.13"
}
],
"contract": {
"max_ttl": 86400,
"min_ttl": 300,
"required": [
{
"name": "example.test",
"type": "MX"
},
{
"name": "_dmarc.example.test",
"type": "TXT"
}
],
"forbid_wildcards": true
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"zone": "example.test",
"valid": false,
"limits": {
"maxRecords": 2000,
"maxFindings": 500,
"maxHeaderBytes": 131072,
"maxIncludeTree": 200,
"spfLookupLimit": 10,
"maxRecordLength": 4096,
"spfVoidLookupLimit": 2
},
"passed": false,
"checked": {
"max_ttl": 86400,
"min_ttl": 300,
"required": 2,
"wildcards_forbidden": true
},
"complete": true,
"findings": [
{
"code": "TTL_BELOW_MINIMUM",
"name": "www.example.test",
"type": "A",
"detail": "www.example.test A has a TTL of 60 and the contract requires at least 300. A short TTL multiplies query volume and resolver load."
},
{
"code": "WILDCARD_RECORD",
"name": "*.example.test",
"type": "A",
"detail": "*.example.test is a wildcard, which answers for every name the zone does not define, including ones nobody intended."
},
{
"code": "RECORD_OUTSIDE_ZONE",
"name": "other.test",
"type": "A",
"detail": "other.test is not inside example.test, so it is not this zone's record to publish."
}
],
"name_count": 6,
"request_id": "example-request",
"service_id": "dns_zone_contract_audit",
"assumptions": [
"Nothing resolves DNS. Names are normalised so a trailing dot does not create a second name, which otherwise makes every cross-reference check miss.",
"A target that is itself a CNAME is reported because it is forbidden for MX, NS and CNAME, and because the resulting failure is intermittent rather than total, which is why it survives in production.",
"A target inside the zone that the zone does not define is reported as resolving to nothing. A target outside the zone is not followed, since this product has no view of another zone."
],
"cname_count": 3,
"limitations": [
"The records supplied. Whether they are published, whether an external target resolves, and whether delegation is correct at the parent are all outside this.",
"valid is true only when every rule held and every check the caller asked for was performed."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"not_examined": [],
"record_count": 9,
"finding_count": 9,
"types_present": [
"A",
"CNAME",
"MX"
],
"service_version": "1.0.0",
"findings_by_code": {
"WILDCARD_RECORD": 1,
"RECORD_DUPLICATED": 1,
"TARGET_IS_A_CNAME": 1,
"TTL_BELOW_MINIMUM": 1,
"CNAME_AT_ZONE_APEX": 1,
"TARGET_NOT_IN_ZONE": 1,
"RECORD_OUTSIDE_ZONE": 1,
"REQUIRED_RECORD_ABSENT": 1,
"TTL_VARIES_WITHIN_A_RECORD_SET": 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": [
"zone",
"records"
],
"properties": {
"zone": {
"type": "string",
"maxLength": 253
},
"records": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type",
"value"
],
"properties": {
"ttl": {
"type": "integer",
"minimum": 0
},
"name": {
"type": "string",
"maxLength": 253
},
"type": {
"type": "string",
"maxLength": 16
},
"value": {
"type": "string",
"maxLength": 4096
}
},
"additionalProperties": false
},
"maxItems": 2000,
"minItems": 1
},
"contract": {
"type": "object",
"properties": {
"max_ttl": {
"type": "integer",
"minimum": 0
},
"min_ttl": {
"type": "integer",
"minimum": 0
},
"required": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type"
],
"properties": {
"name": {
"type": "string",
"maxLength": 253
},
"type": {
"type": "string",
"maxLength": 16
}
},
"additionalProperties": false
},
"maxItems": 200,
"minItems": 1
},
"forbid_wildcards": {
"type": "boolean"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-04 08:40Z
- Last indexed by Roundhouse
- 2026-10-05 00:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-05 02:45Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 0
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service DNS Zone Audit and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=DNS%20Zone%20Audit' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.zfinia.com/x402/v1/dns-zone-contract-audit, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.