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DNS CNAME Lookup for api.<domain> Subdomain
x402
DNS CNAME Lookup for api.<domain> 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 2026-10-21).
Looks up the CNAME record for the 'api' subdomain of a given domain via Cloudflare DNS over HTTPS, returning existence, records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
CNAME record of api.<domain>: looks up the api 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 api without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the CNAME record for api.<domain> exists, the actual CNAME record value(s), the TTL, and the DNS response code (e.g. NOERROR or NXDOMAIN). If the subdomain does not exist, the response will indicate that clearly.
Example use cases
Verify API subdomain before integration
“I'm about to integrate with a third-party service — can you check if api.acmecorp.com has a CNAME record set up and tell me what it resolves to?”
Security audit of competitor API infrastructure
“I'm doing a quick infrastructure reconnaissance — does api.shopify.com have a CNAME configured, and if so where does it point?”
Monitor API subdomain disappearance
“Can you check if api.startupxyz.com still has a CNAME record? I want to know if it's still active or if they've taken it down.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/api/cname?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, single-host existence check for the 'api' subdomain of a specific domain without performing a full subdomain enumeration. Ideal for integration verification, infrastructure auditing, or monitoring whether an API endpoint is DNS-configured. Prefer this over broader DNS enumeration tools when you only care about the canonical api.<domain> CNAME specifically.
Side effects
- Domain not found or NXDOMAIN — api subdomain does not exist for the given domain
- Invalid or malformed domain name input
- DNS timeout or upstream Cloudflare DoH failure
- Domain exists but has no CNAME record (may have A/AAAA instead)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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