# dns-cname-test-subdomain

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

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/test/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-test-subdomain-fb951592
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z0v78FXT2-wE4NvG0Fk_M

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-test-subdomain-fb951592
```

Example prompt: Can you check if there's a CNAME record set up for the 'test' subdomain of rallylive.ca using Cloudflare DNS?

## When to prefer this

Use this endpoint when you need a quick, targeted check for whether a 'test' subdomain CNAME record exists under a given domain, without performing broad subdomain enumeration. Prefer it over general DNS query tools when you specifically need CNAME data for the 'test' host resolved via Cloudflare's DoH resolver.

## Known failure modes

- Domain does not exist — returns no records or NXDOMAIN
- test subdomain has no CNAME record — returns empty record set
- Cloudflare DoH service unavailable — request timeout or error
- Invalid or malformed domain input — may return error or empty result
- Rate limiting or payment failure — request rejected

## How this service works

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

## Output

Returns whether the CNAME record for 'test.<domain>' exists, the actual CNAME record value(s), and the TTL as resolved via Cloudflare DNS over HTTPS.

## 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-test-subdomain-fb951592/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)