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DKIM Selector sel1 Lookup
x402
DKIM Selector sel1 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 'sel1' 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 "sel1" of a domain: looks up sel1._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 sel1 selector will verify. $0.01 per lookup.
Output
Returns parsed details from the sel1._domainkey.<domain> TXT DNS record including the DKIM version tag (v=), key type (k=), public key length in bits, whether the domain is in testing mode, and whether the key is revoked (empty p= field). Confirms whether mail signed with the sel1 selector will successfully verify.
Example use cases
Pre-send email deliverability audit
“Before I start sending campaigns through this new sending domain, can you check if the sel1 DKIM selector is properly configured for mybrand.com — I need to know the key type, its length, and whether it's revoked or still in test mode.”
Post-migration DKIM validation
“We just migrated our email infrastructure and I think sel1 is the active DKIM selector — can you look up the DKIM sel1 key for ourcompany.io and confirm that mail signed with it will actually verify?”
Security audit of DKIM key strength
“I'm auditing the email security posture for clientdomain.net — can you pull the sel1 DKIM public key and tell me what the key length is so I can flag it if it's below 2048 bits?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/dkim/sel1?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to check the 'sel1' DKIM selector for a domain and want structured, parsed output including key metadata and revocation status. Prefer this over generic DNS TXT lookups when you need DKIM-specific parsing (key length, type, testing flag). Choose sibling selector-specific endpoints (e.g. dkim-selector-mx, dkim-selector-google) when targeting those selectors instead.
Side effects
- Domain has no sel1._domainkey TXT record — returns not-found or empty result
- DNS resolution failure via Cloudflare DoH — transient network error
- Malformed TXT record that cannot be parsed — partial or error response
- Domain does not exist in DNS — NXDOMAIN response
- Key is revoked (empty p=) — reported as revoked rather than an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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