# DNS AAAA Record Lookup for cdn Subdomain via Cloudflare DoH

> DNS AAAA Record Lookup for cdn 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 AAAA (IPv6) DNS record for the cdn.<domain> subdomain using Cloudflare DNS over HTTPS, returning existence status, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/cdn/aaaa?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-aaaa-record-lookup-for-cdn-subdomain-via-cloudflare-doh-620fb03a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cBjs-Y8ZcLVYRWqUZLxzs

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-aaaa-record-lookup-for-cdn-subdomain-via-cloudflare-doh-620fb03a
```

Example prompt: Check if cdn.rallylive.ca has an AAAA record — I want to know if it resolves to an IPv6 address and what the TTL is.

## When to prefer this

Choose this endpoint when you need a fast, targeted existence check for the cdn subdomain's IPv6 (AAAA) record on a specific domain without enumerating all subdomains. Prefer this over general DNS tools when you specifically want to verify CDN IPv6 configuration via Cloudflare DoH with minimal cost.

## Known failure modes

- Domain does not exist — returns NXDOMAIN with no records
- cdn subdomain not configured — record absent but domain resolves
- Network or DoH resolver timeout — may return error or empty response
- Malformed domain input — may cause query failure
- Domain exists but has no AAAA record (IPv4 only) — returns empty record set

## How this service works

AAAA record of cdn.<domain>: looks up the cdn host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like cdn without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the cdn.<domain> AAAA record exists, the IPv6 address records if present, the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN).

## 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-aaaa-record-lookup-for-cdn-subdomain-via-cloudflare-doh-620fb03a/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)