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dns-cname-auth-subdomain
x402
dns-cname-auth-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 CNAME record for the auth.<domain> subdomain via Cloudflare DNS over HTTPS and reports whether it exists, its records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
CNAME record of auth.<domain>: looks up the auth host under the domain you give (CNAME via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like auth without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the auth.<domain> CNAME record exists, the record value(s) it contains, the TTL, and the DNS response code — all as resolved by Cloudflare's DNS over HTTPS service.
Example use cases
Verify SSO auth subdomain before deployment
“Before we go live, can you check whether auth.mycompany.com has a CNAME record set up and what it resolves to?”
Audit third-party login infrastructure
“I need to know if auth.shopify.com has a CNAME record pointing somewhere — can you look that up for me?”
Troubleshoot missing authentication endpoint
“Our users can't reach the login page — can you check if the CNAME record for auth.acmecorp.io exists and what its TTL is?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/auth/cname?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, targeted existence check for the auth.<domain> subdomain specifically via CNAME record type, without performing broad subdomain enumeration. Prefer this over general CNAME resolvers when you want Cloudflare DoH resolution with TTL data included and are focused on the common 'auth' host pattern for a given domain.
Side effects
- Domain does not exist — NXDOMAIN response with no records
- auth subdomain has no CNAME record (may have A/AAAA instead) — empty records returned
- Invalid or malformed domain input — error or unexpected response
- Cloudflare DoH unreachable — service timeout or error
- Domain exists but auth subdomain is not configured — NOERROR with empty answer
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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