# dns-cname-static-subdomain

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

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/static/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-static-subdomain-e8fc8c61
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sOJhTmjCPDWo7FKXZwL_e

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-static-subdomain-e8fc8c61
```

Example prompt: Can you check if the static subdomain of rallylive.ca has a CNAME record set up — I want to know if it exists, what it points to, and its TTL?

## When to prefer this

Use this endpoint when you specifically need to check the CNAME record for the 'static' subdomain of a given domain without doing a full subdomain enumeration. It is ideal for quick infrastructure checks, CDN verification, and pre-deployment validation. Prefer this over general DNS tools when you want a lightweight, paid-API approach using Cloudflare DoH with a clear existence check result.

## Known failure modes

- Domain does not have a static subdomain — returns NXDOMAIN or empty records
- Invalid or malformed domain name input — may return an error or SERVFAIL
- Network timeout reaching Cloudflare DoH — transient failure
- Domain exists but has no CNAME record type (may have A/AAAA instead) — returns no CNAME records

## How this service works

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

## Output

Returns whether the CNAME record for static.<domain> exists, the record values (what the subdomain points to), the TTL in seconds, and the DNS response code — all as resolved by Cloudflare's DNS over HTTPS service.

## 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-static-subdomain-e8fc8c61/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)