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DKIM Selector 'sib' Public Key Lookup
x402
DKIM Selector 'sib' Public Key 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 'sib' selector of a given domain, returning key type, length, testing flag, and revocation status.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM public key for selector "sib" of a domain: looks up sib._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 sib selector will verify. $0.01 per lookup.
Output
Returns parsed DKIM TXT record details for sib._domainkey.<domain>: DKIM version (v=), key type (k=), public key length in bits, whether the key is in testing mode, and whether the key is revoked (empty p= field). Confirms whether mail signed with the sib selector will successfully verify.
Example use cases
Pre-send email deliverability check
“Before we send the campaign, can you confirm that the sib DKIM selector is active and not revoked for our domain acme.com?”
Debug DKIM signature failure
“Emails from our Sendinblue account are failing DKIM checks — can you look up the sib._domainkey TXT record for mybusiness.com and tell me if the public key is valid and what length it is?”
Email security audit
“We're auditing our domain mailsecurity.org — can you check the sib DKIM selector and tell me the key type, length, whether it's in testing mode, and if it might be revoked?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/sib?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to validate the 'sib' DKIM selector (commonly used by Sendinblue/Brevo email service) for a domain. It provides richer parsed output than a raw DNS TXT lookup, including key length, type classification, testing mode, and explicit revocation detection — ideal for email deliverability checks or security audits targeting this selector.
Side effects
- Domain has no sib._domainkey TXT record — returns not found or NXDOMAIN
- DNS query timeout or Cloudflare DoH unavailability
- Malformed TXT record that cannot be parsed
- Domain input missing or invalid format
- Key is revoked (empty p=) — returns revoked flag rather than error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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