# DNS CNAME Lookup for id Subdomain

> DNS CNAME Lookup for id 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).

Checks whether the 'id' subdomain exists under a given domain by performing a CNAME DNS lookup via Cloudflare DoH, returning the record data and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/id/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-id-subdomain-6edd882c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uyDHccoU8An_9siBmdesT

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-id-subdomain-6edd882c
```

Example prompt: Can you check if id.stripe.com exists as a CNAME record and tell me what it points to and its TTL?

## When to prefer this

Use this endpoint when you need a quick, targeted check for the 'id' subdomain specifically under a domain without doing broader subdomain enumeration. Ideal for identity/SSO infrastructure verification, pre-integration checks, or monitoring whether an identity endpoint is configured. Prefer this over general DNS tools when you specifically need CNAME data for the 'id' host and want a pay-per-lookup approach via Cloudflare DoH.

## Known failure modes

- Domain does not have an id subdomain — returns non-existence result
- Invalid or malformed domain input — may return error or empty result
- Cloudflare DoH upstream failure — may return timeout or error
- Domain exists but id host has A/AAAA record instead of CNAME — may not appear in CNAME result

## How this service works

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

## Output

Returns whether the id.<domain> host exists, the CNAME record data (target hostname), and the TTL value. If no record is found, indicates the host does not exist.

## 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-id-subdomain-6edd882c/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)