# is-dns-hosted-by-cloudflare-registrar-bulk

> is-dns-hosted-by-cloudflare-registrar-bulk is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-18).

Checks whether the DNS for up to 20 domains is hosted by Cloudflare Registrar in a single concurrent batch call, returning per-domain results in input order with per-item error fields and a failure count.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/bulk/dns/hosted-by/cloudflare-registrar?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-dns-hosted-by-cloudflare-registrar-bulk-dc01f984
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XsL8TjD_zKcchw8WtF7pC

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 is-dns-hosted-by-cloudflare-registrar-bulk-dc01f984
```

Example prompt: Can you check whether the DNS for all these domains is hosted by Cloudflare Registrar — here's the list: example.com, acmecorp.io, testsite.net, mybrand.co — give me a result for each one?

## When to prefer this

Choose this endpoint when you need to check Cloudflare Registrar DNS hosting status for multiple domains at once (up to 20) and want results in a single concurrent call rather than making individual requests per domain. It is ideal for bulk enrichment workflows, domain portfolio audits, and pipelines where latency matters and you need per-item error resilience with a failure count summary.

## Known failure modes

- More than 20 domains submitted — batch limit exceeded
- Invalid domain name format causes per-item error with error field populated
- DNS resolution timeout for a specific domain results in that item's error field being set
- Network error querying Cloudflare DoH causes partial batch failures reflected in failure count
- Missing or malformed input array returns a top-level error response

## How this service works

Bulk is dns hosted by cloudflare registrar: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

## Output

Returns an ordered array of per-domain results matching the input order, each containing a boolean indicating whether DNS is hosted by Cloudflare Registrar, plus a per-item error field if the lookup failed for that domain, and an overall failure count summarizing how many items encountered errors.

## 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/is-dns-hosted-by-cloudflare-registrar-bulk-dc01f984/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)