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DKIM Selector2 Public Key Lookup
x402
DKIM Selector2 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 'selector2' selector of a given domain via Cloudflare DoH, returning key type, length, testing flags, and revocation status.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM public key for selector "selector2" of a domain: looks up selector2._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 selector2 selector will verify. $0.01 per lookup.
Output
Returns parsed DKIM record fields for selector2._domainkey.<domain>: DKIM version (v=), key type (k= e.g. rsa or ed25519), public key length in bits, whether the domain is in testing mode (t=y), and whether the key is revoked (empty p= field). Confirms mail signed with the selector2 selector will pass DKIM verification.
Example use cases
Email deliverability audit for domain
“I'm setting up email for acme.com and want to confirm that the selector2 DKIM key is properly published and not revoked — can you look it up and tell me the key type and length?”
Diagnose DKIM verification failure
“Emails from mailchimp.com signed with selector2 are failing DKIM verification — can you pull the selector2 DKIM record for mailchimp.com and tell me if the key looks valid or if it might be revoked?”
Security review of DKIM configuration
“I'm doing a security review of contoso.com's email setup — please check the selector2 DKIM record and tell me if it's in testing mode, what the key length is, and whether the key is active.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/selector2?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to inspect the 'selector2' DKIM selector, which is commonly used by Microsoft 365 / Office 365 as their second rotating DKIM selector. Prefer this over generic DNS TXT lookups when you want structured, pre-parsed DKIM fields (key type, length, testing flag, revocation) rather than raw DNS output. If you need a different selector (e.g. mailerlite, braze, google), sibling endpoints exist for those.
Side effects
- Domain has no selector2._domainkey TXT record — returns not found or empty result
- DKIM record exists but is malformed and cannot be parsed
- DNS resolution failure via Cloudflare DoH — network or timeout error
- Domain name is invalid or not resolvable
- Key is revoked (empty p=) — returned as a flag but lookup still succeeds
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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