# DNS A Record Lookup for static Subdomain

> DNS A Record Lookup for static 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 2026-10-21).

Looks up the A (IPv4) record for the static.<domain> subdomain via Cloudflare DNS over HTTPS and reports existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/static/a?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-a-record-lookup-for-static-subdomain-ac8a0c01
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6sVptNlv4Nc-2rCCaVrPZ

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-a-record-lookup-for-static-subdomain-ac8a0c01
```

Example prompt: Can you check whether the static subdomain of rallylive.ca has an A record configured — I want to know if it exists and what IP it resolves to?

## When to prefer this

Choose this endpoint when you specifically need to check the A (IPv4) record for the 'static' subdomain of a given domain, without enumerating all subdomains. It is ideal for quick existence checks on common static content hosts, CDN subdomains, or asset servers. Prefer this over general DNS lookup tools when you only need the static subdomain and want a fast, cost-effective single check at $0.01.

## Known failure modes

- Domain does not have a static subdomain — returns NXDOMAIN or non-existent status
- Invalid or malformed domain input — may return an error or empty result
- Network timeout reaching Cloudflare DoH resolver
- Domain exists but has no A record (only AAAA or CNAME) — A record lookup returns empty
- Rate limiting or payment failure — x402 payment not accepted

## How this service works

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

## Output

Returns whether static.<domain> exists as a DNS A record, the resolved IPv4 address(es), the TTL of the record, and the DNS response code (e.g. NOERROR or NXDOMAIN), as answered by Cloudflare's DNS over HTTPS resolver.

## 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-a-record-lookup-for-static-subdomain-ac8a0c01/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)