Audit an SPF record
Audit an SPF record. Reports two or more records on one name, which is a permanent error so most receivers treat the domain as having no SPF at all; a lookup count at or beyond the limit of ten resolving mechanisms, beyond which the evaluation is a permanent error; a record ending in +all, which authorises every host on the internet; a record ending neutral with no all or redirect; a term after all, which is never evaluated; and an unrecognised term, which is itself a permanent error.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.zfinia.com/x402/v1/spf-record-audit
| Category | Code and developer |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.2 | 4834 ms |
Example input (from the provider)
{
"body": {
"assume_lookups_per_include": 1,
"domain": "example.test",
"records": [
"v=spf1 include:_spf.vendor-a.test include:_spf.vendor-b.test include:_spf.vendor-c.test include:spf.vendor-d.test include:mail.vendor-e.test a mx ptr exists:%{i}._auth.example.test include:_spf.vendor-f.test include:_spf.vendor-g.test ~all include:late.vendor.test",
"v=spf1 include:_spf.legacy.test ~all",
"google-site-verification=abc123"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"assume_lookups_per_include": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"domain": {
"maxLength": 253,
"type": "string"
},
"records": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 20,
"type": [
"array",
"string"
]
}
},
"required": [
"records"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}