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DKIM Selector k1 Lookup
x402
DKIM Selector k1 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 2026-10-02).
Looks up and parses the DKIM public key for the 'k1' selector of a given domain via Cloudflare DoH, returning key type, length, testing flag, and revocation status.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM public key for selector "k1" of a domain: looks up k1._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 k1 selector will verify. $0.01 per lookup.
Output
Returns parsed DKIM TXT record data for the k1._domainkey.<domain> record, including: v= tag (DKIM version), k= tag (key type, e.g. rsa), the public key itself, key length in bits, whether the testing flag (t=y) is set, and whether the key is revoked (empty p= field). Indicates whether mail signed with the k1 selector should verify successfully.
Example use cases
Email deliverability pre-send check
“Before we send our marketing campaign, can you verify that the DKIM k1 selector for ourcompany.com is properly configured, not revoked, and the key is strong enough to pass verification?”
Domain security audit
“I'm auditing the email security setup for clientdomain.com — can you look up their k1 DKIM selector and tell me the key type, key length, and whether the selector is in testing mode or active?”
DKIM outage troubleshooting
“Our emails from newsletters.io are bouncing with DKIM signature failures — can you check if the k1 DKIM selector still has a valid, non-revoked public key published in DNS?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/k1?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to inspect the DKIM 'k1' selector for a domain — checking key validity, type, strength, and revocation status. Prefer this over generic DNS TXT lookups when you want structured, parsed DKIM fields rather than raw TXT data. Ideal for email deliverability audits, domain security checks, and debugging DKIM signing failures for the k1 selector specifically.
Side effects
- Domain does not exist or has no DNS — returns empty or NXDOMAIN result
- No k1._domainkey record found — key absent or selector not published
- Revoked key (empty p=) — lookup succeeds but key is invalid
- Malformed TXT record — parsing may fail or return partial data
- Cloudflare DoH timeout — transient DNS resolution failure
- Invalid domain input — may return error or empty response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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