# dns-cname-media-subdomain

> dns-cname-media-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 DNS record for the media.<domain> subdomain via Cloudflare DoH and reports its existence, record data, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/media/cname?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-cname-media-subdomain-9d974937
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EBd-oNEe4vKV7PilcW_Nl

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-media-subdomain-9d974937
```

Example prompt: Can you check if the media subdomain exists for spotify.com and tell me what its CNAME record points to and what the TTL is?

## When to prefer this

Use this endpoint when you need a fast, targeted existence check for the media.<domain> CNAME specifically, without running a full subdomain enumeration. Ideal for DNS infrastructure audits, competitor research, or verifying that a media CDN subdomain is correctly configured via CNAME. Prefer this over general DNS tools when you only need the media host and want a low-cost per-lookup API that resolves via Cloudflare DoH for reliability.

## Known failure modes

- Domain does not have a media subdomain — record not found, existence reported as false
- Invalid or malformed domain name input — lookup fails or returns error
- Cloudflare DoH upstream timeout or unavailability — lookup may fail or return no result
- Domain exists but media subdomain has no CNAME (may have A record instead) — CNAME not returned

## How this service works

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

## Output

Returns whether the media.<domain> CNAME record exists, the CNAME target hostname it points to, and the TTL value of the record. If the record does not exist, reports non-existence accordingly.

## 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-media-subdomain-9d974937/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)