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dns-txt-dmarc-subdomain
x402
dns-txt-dmarc-subdomain 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 the TXT DNS record for the _dmarc subdomain of a given domain via Cloudflare DoH and reports its existence, record values, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
TXT record of _dmarc.<domain>: looks up the _dmarc host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like _dmarc without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the _dmarc TXT record exists for the queried domain, along with the raw TXT record string (e.g. 'v=DMARC1; p=reject; ...'), the TTL, and the response status from Cloudflare DoH.
Example use cases
Verify vendor email security posture
“Before we start working with acmecorp.com, can you check if they have a DMARC TXT record configured under _dmarc.acmecorp.com? I want to know if they have email spoofing protection in place.”
Audit domain before email campaign
“We're about to send a bulk campaign from newsletter.mycompany.com — can you check whether _dmarc.mycompany.com has a TXT record and what the policy value is?”
Diagnose email deliverability issue
“Emails from clientdomain.io are landing in spam — can you look up the DMARC TXT record at _dmarc.clientdomain.io to see if they have a policy and what it says?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/dmarc/txt?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, targeted check for whether a domain has a DMARC policy configured, without enumerating subdomains or querying other DNS record types. Ideal for email security audits, vendor due-diligence checks, or deliverability diagnostics where only the _dmarc TXT record is needed.
Side effects
- Domain has no _dmarc TXT record — endpoint returns a non-existence result rather than an error
- Invalid or malformed domain name input causes a DNS resolution failure
- Network or Cloudflare DoH timeout results in no response
- Rate limiting or payment failure ($0.01 USDC per call) prevents the lookup from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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