# dns-aaaa-owa-subdomain

> dns-aaaa-owa-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 2026-10-22).

Looks up the AAAA (IPv6) DNS record for the owa subdomain of a given domain using Cloudflare DNS over HTTPS, reporting its existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/owa/aaaa?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-aaaa-owa-subdomain-4ab111ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IZi26Iz04SWCwhK9zSR3l

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-owa-subdomain-4ab111ce
```

Example prompt: Check if contoso.com has an owa subdomain with an IPv6 address — I need to know if their Outlook Web Access server is reachable over IPv6.

## When to prefer this

Use this endpoint when you need a quick, targeted check for whether a specific domain has an owa subdomain with IPv6 (AAAA) DNS records, without running a full subdomain enumeration. Ideal for OSINT, infrastructure discovery, or verifying Outlook Web Access deployments on specific domains.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- owa subdomain not configured — NXDOMAIN or empty answer section
- Network or DoH resolver timeout — no response returned
- Invalid domain format in input — request may fail or return error
- Cloudflare DoH unavailable — service temporarily unreachable

## How this service works

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

## Output

Returns whether the owa.<domain> AAAA record exists, the resolved IPv6 address(es) 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-owa-subdomain-4ab111ce/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)