Audit DKIM selector records
Audit DKIM selector records. The key length follows from the length of the encoded public key, so a short RSA key is readable from the record itself with no cryptography. Reports a key shorter than a stated minimum; a selector left in testing mode, which asks receivers to treat a failure as unsigned so it cannot contribute to DMARC alignment however correctly it signs; a revoked key, with its consequence; and a key type verifiers do not implement.
Answers HTTP 429 without x402 payment termsour last check, 2026-10-04
0 of 1checks answered this week
n/amedian answer time
$0.18listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.zfinia.com/x402/v1/dkim-record-audit
| Category | Code and developer |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | no x402 terms | 429 | 259 ms |
Example input (from the provider)
{
"body": {
"minimum_key_bits": 2048,
"records": [
{
"record": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLiL1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijQIDAQAB",
"selector": "legacy2019"
},
{
"record": "v=DKIM1; k=rsa; t=y; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ12345678QIDAQAB",
"selector": "rollout2026"
},
{
"record": "v=DKIM1; k=rsa; p=",
"selector": "retired2024"
},
{
"record": "v=DKIM1; k=rsa; s=tlsa; rotation=90d; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0000000000abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ12345678QIDAQAB",
"selector": "odd"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"minimum_key_bits": {
"maximum": 8192,
"minimum": 512,
"type": "integer"
},
"records": {
"items": {
"additionalProperties": false,
"properties": {
"record": {
"maxLength": 4096,
"type": "string"
},
"selector": {
"maxLength": 128,
"type": "string"
}
},
"required": [
"selector",
"record"
],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
},
"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"
}