# DNS CNAME Lookup for mobile Subdomain via Cloudflare DoH

> DNS CNAME Lookup for mobile Subdomain via Cloudflare DoH 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 mobile.<domain> using Cloudflare DNS over HTTPS and returns whether it exists, its records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/mobile/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-lookup-for-mobile-subdomain-via-cloudflare-doh-5f7637d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__URCstdaK1H3dgAhwHXUG

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-mobile-subdomain-via-cloudflare-doh-5f7637d3
```

Example prompt: Can you check whether mobile.shopify.com has a CNAME record and what it points to?

## When to prefer this

Use this endpoint when you need a quick, targeted check on whether a specific domain has a mobile subdomain CNAME configured, without running a full subdomain enumeration. Prefer it over generic DNS tools when you specifically need the CNAME record type for the mobile host and want a lightweight, pay-per-lookup approach via Cloudflare's reliable DoH resolver.

## Known failure modes

- Domain does not exist — NXDOMAIN response with no records
- mobile subdomain has no CNAME record (may have A/AAAA instead) — returns empty or no-record result
- Invalid or malformed domain input — error or no response
- Cloudflare DoH upstream timeout or unavailability — lookup fails
- Domain exists but mobile host has no DNS entry of any kind — non-existent result

## How this service works

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

## Output

Returns whether the mobile.<domain> CNAME record exists, the CNAME target value(s) if present, and the TTL of the record as answered by 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-mobile-subdomain-via-cloudflare-doh-5f7637d3/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)