# DNS CNAME Lookup for pop Subdomain via Cloudflare DoH

> DNS CNAME Lookup for pop 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 the pop.<domain> subdomain using Cloudflare DNS over HTTPS and returns whether it exists along with its records and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/pop/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-pop-subdomain-via-cloudflare-doh-95fd5523
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u41wsnNKlr61hEwrEUeNM

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-pop-subdomain-via-cloudflare-doh-95fd5523
```

Example prompt: Can you check if pop.rallylive.ca has a CNAME record configured — I need to know whether it exists and what it points to.

## When to prefer this

Use this endpoint when you need a quick, targeted existence check for the pop subdomain CNAME record specifically, without performing broad subdomain enumeration. Prefer this over general DNS lookup tools when you know you need exactly the pop host and want a low-cost ($0.01) single lookup via Cloudflare's reliable DoH resolver.

## Known failure modes

- Domain does not have a pop subdomain — returns non-existence (NXDOMAIN or empty records)
- Invalid or malformed domain name input — may return error or empty result
- DNS resolution timeout from Cloudflare DoH — transient failure
- Domain with no DNS records at all — empty response
- Network connectivity issues to Cloudflare DoH endpoint

## How this service works

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

## Output

Returns whether the pop.<domain> CNAME record exists, the actual CNAME record value(s) it contains, and the TTL (time to live) of those records, as resolved by Cloudflare DNS over HTTPS.

## 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-pop-subdomain-via-cloudflare-doh-95fd5523/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)