# DNS CNAME Lookup for voip Subdomain

> DNS CNAME Lookup for voip 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 record for the voip.<domain> subdomain via Cloudflare DNS over HTTPS and reports its existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/voip/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-lookup-for-voip-subdomain-55e0e113
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mnAkn43BeCaZt4pwdrnF2

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-lookup-for-voip-subdomain-55e0e113
```

Example prompt: Check if voip.example.com has a CNAME record set up — I want to know what it points to and the TTL.

## When to prefer this

Use this endpoint when you need a quick, targeted check for whether a voip.<domain> CNAME record exists without running a full subdomain enumeration. Prefer this over generic DNS resolvers when you want a pay-per-use, agent-friendly API that returns structured existence and record data specifically for the common 'voip' hostname pattern via Cloudflare DoH.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- voip subdomain has no CNAME record — returns empty record set with NOERROR
- Invalid domain format in query — may return error or empty response
- Cloudflare DoH unreachable — service may time out or return upstream error
- Domain exists but voip host has A/AAAA record instead of CNAME — returns empty CNAME result

## How this service works

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

## Output

Returns whether the voip.<domain> CNAME record exists, the CNAME target hostname(s), the TTL value, and the DNS response code — all resolved via Cloudflare DoH.

## 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-lookup-for-voip-subdomain-55e0e113/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)