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DKIM Key1 Selector Lookup
x402
DKIM Key1 Selector 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 'key1' selector of a given domain, confirming its validity and mail-signing capability.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM public key for selector "key1" of a domain: looks up key1._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 key1 selector will verify. $0.01 per lookup.
Output
Returns parsed details from the key1._domainkey.<domain> DNS TXT record, including the DKIM version tag (v=), key type (k=, e.g. rsa or ed25519), public key bit length, whether the testing flag is set, and whether the key is revoked (empty p= field). Also confirms whether mail signed with the key1 selector will successfully verify.
Example use cases
Email deliverability audit
“I'm troubleshooting email delivery issues for acme.com — can you look up the DKIM key1 selector and tell me if the public key is properly configured, not revoked, and what type and bit length it is?”
Security review of DKIM key strength
“Can you check the DKIM key1 selector for newsletter.bigcorp.com and tell me the key length? I want to make sure they're not still using a weak 512-bit RSA key.”
Onboarding domain email auth check
“We just onboarded startup.io as a new customer — can you verify their DKIM key1 selector is active and not flagged as testing or revoked so we know their outbound mail will pass DKIM checks?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/key1?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to inspect the 'key1' DKIM selector for a domain and want structured, parsed output (key type, length, revocation, testing status) rather than a raw DNS TXT record. Prefer this over generic DNS lookup tools when you need DKIM-specific field parsing and a clear pass/fail signal for whether mail signed with key1 will verify.
Side effects
- Domain does not exist — DNS NXDOMAIN response, no record returned
- key1._domainkey.<domain> TXT record not found — selector not configured
- Malformed DKIM TXT record — parsing may fail or return partial data
- Revoked key detected (empty p=) — reported as revoked, mail will not verify
- Network or DoH resolver error — upstream Cloudflare DoH unavailable
- Payment failure — x402 payment not processed, request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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