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DKIM Selector AC Lookup
x402
DKIM Selector AC Lookup is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Looks up and parses the DKIM public key for the 'ac' selector of a given domain via Cloudflare DoH, returning key metadata including type, length, testing flag, and revocation status.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM public key for selector "ac" of a domain: looks up ac._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the ac selector will verify. $0.01 per lookup.
Output
Returns parsed DKIM record details for the ac selector including: the v= protocol version, k= key type (e.g. rsa), public key length in bits, whether the testing flag (t=y) is set, and whether the key is revoked (empty p= value). Confirms whether mail signed with the ac selector should verify successfully.
Example use cases
Verify DKIM before email campaign
“We're about to send a big email campaign from example.com and I want to confirm the ac DKIM selector is properly set up and not revoked — can you check it?”
Audit domain email authentication
“I'm doing a security audit of acmecorp.com — can you look up the ac DKIM selector and tell me the key type, length, and whether it's in testing mode or revoked?”
Diagnose DKIM signing failures
“Emails signed with the ac selector for mybusiness.com are failing DKIM verification — can you look up the ac._domainkey record and tell me what's there, including whether the key might be empty or revoked?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/ac?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to inspect the 'ac' DKIM selector for a domain — for example when auditing email authentication configuration, troubleshooting DKIM verification failures for ac-signed mail, or checking revocation status. Prefer this over generic DNS TXT lookup endpoints when you need structured DKIM field parsing (v=, k=, key length, testing flag, revocation) rather than a raw DNS response.
Side effects
- Domain does not have an ac._domainkey TXT record — returns not found or empty result
- DNS resolution failure via Cloudflare DoH — network or upstream error
- Malformed TXT record that cannot be parsed into DKIM fields
- Domain input missing or invalid — request rejected
- Empty p= tag indicating a revoked key — reported as revoked, not an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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