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DKIM Selector1 Change Watch
x402
DKIM Selector1 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 TXT record for selector 'selector1' of a domain and returns whether it has changed since the last check, along with before/after field diffs.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for dkim selector selector1: 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 selector1 TXT record value for the queried domain, 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 a timestamp of when the record was last seen.
Example use cases
DKIM key rotation detection
“Check if the DKIM selector1 record for acmecorp.com has changed since yesterday — I want to know if someone rotated the key, and what the old and new values are.”
Email deliverability integrity monitoring
“Set up a recurring check on the selector1 DKIM record for mybusiness.com so I get alerted immediately if anything changes — I need to know the moment that record is modified.”
Post-migration DKIM validation
“We just migrated our email provider for startup.io — can you check whether the DKIM selector1 record has changed compared to before the migration, and show me exactly what's different?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/watch/dns/dkim/selector1?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect changes to a domain's DKIM selector1 record over time, rather than just looking up the current value. It is ideal for automated monitoring pipelines, security alerting, and post-migration validation where you need before/after diffs. Prefer it over a plain DKIM lookup when change detection and historical comparison matter.
Side effects
- Domain not previously checked — no baseline exists for comparison, changed flag may be null or absent
- Domain does not have a selector1 DKIM record — returns empty or NXDOMAIN result
- DNS resolution failure — Cloudflare DoH unavailable or domain unreachable
- Payment failure — $0.02 USDC x402 payment not accepted, request rejected
- Stale baseline — prior result older than 90-day retention window, comparison not available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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