# dns-cname-admin-subdomain

> dns-cname-admin-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 admin subdomain of a given domain using Cloudflare DNS over HTTPS, reporting existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/admin/cname?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-cname-admin-subdomain-ceda1cfd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yR5zq2f335CEbWCEv9-KS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-cname-admin-subdomain-ceda1cfd
```

Example prompt: Can you check whether admin.example.com has a CNAME record and what it resolves to using Cloudflare DNS?

## When to prefer this

Choose this endpoint when you need a fast, cheap ($0.01) existence check for whether a specific domain's admin subdomain is configured via CNAME, without performing broad subdomain enumeration. Ideal for targeted DNS reconnaissance, security audits, or pre-deployment validation of a single well-known host name. Prefer this over general DNS lookup tools when you specifically need CNAME data for the 'admin' hostname and want to use Cloudflare DoH as the resolver.

## Known failure modes

- Domain not found or NXDOMAIN — admin subdomain does not exist in DNS
- No CNAME record type present for admin.<domain> even if the host exists
- Malformed domain input causing query failure
- Cloudflare DoH upstream timeout or transient error
- Rate limiting or payment failure preventing the lookup

## How this service works

CNAME record of admin.<domain>: looks up the admin 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 admin without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the admin.<domain> CNAME record exists, the CNAME record data (target hostname), the TTL in seconds, and the DNS response code indicating success or failure of the lookup.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-cname-admin-subdomain-ceda1cfd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)