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DKIM Selector fm2 Change Watch
x402
DKIM Selector fm2 Change Watch is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Monitors the DKIM public key for the 'fm2' selector of a domain and returns whether it has changed since the last check, with before/after field diffs.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for dkim selector fm2: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
Output
Returns the current DKIM fm2 selector record value, a boolean 'changed' flag indicating whether it differs from the previous check (stored up to 90 days), a list of fields that changed with their before and after values, and the timestamp of when the record was last seen.
Example use cases
Email provider DKIM key rotation alert
“Watch the fm2 DKIM selector for mydomain.com and notify me immediately if the public key changes — I need to know if our email provider rotates it without warning.”
Security audit DKIM drift detection
“Check whether the fm2._domainkey DNS record for acmecorp.com has changed since the last check, and show me exactly which fields changed and what the before and after values were.”
Automated compliance monitoring
“Schedule a recurring watch on the fm2 DKIM selector for ourfirm.com so I get an alert any time it changes — we need to track this for our email security compliance logs.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/watch/dns/dkim/fm2?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to detect changes to the fm2 DKIM selector specifically (e.g. for domains using Freshmail or similar senders that use the fm2 selector), and you want diff-aware change detection with historical comparison rather than a raw one-time DNS lookup. Ideal for scheduling periodic polling to trigger alerts on key rotation.
Side effects
- Domain does not exist or has no fm2 DKIM record — returns current empty/null result with changed flag based on prior state
- No previous check stored (first call) — returns current value with changed=false and no diff
- DNS resolution failure via Cloudflare DoH — may return error or timeout
- Domain parameter missing or malformed — request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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