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

> is-dns-hosted-by-cloudflare-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 2026-10-22).

Checks up to 20 domains in a single call to determine whether each domain's DNS is hosted by Cloudflare, returning per-item results with error fields and a failure count.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/bulk/dns/hosted-by/cloudflare?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-dns-hosted-by-cloudflare-bulk-231579e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8iExtqUyVr1VXIUxggirL

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-bulk-231579e3
```

Example prompt: Check all of these domains at once and tell me which ones have their DNS hosted by Cloudflare: example.com, foo.io, bar.co, acme.org — I need the result for each one and a count of any that failed.

## When to prefer this

Prefer this endpoint when you have a list of 2–20 domains and want to check Cloudflare DNS hosting status in a single API call rather than making individual requests. It is more cost-efficient and faster than serial single-domain checks when processing multiple domains. Use the single endpoint instead for one-off lookups or when you only have a single domain.

## Known failure modes

- Individual domain lookup fails due to DNS resolution error — surfaced in per-item error field
- More than 20 domains submitted — batch limit exceeded
- Invalid domain format causes per-item failure
- Cloudflare DoH upstream unavailable — results in errors across all items
- Payment not provided or insufficient — 402 response, no results returned

## How this service works

Bulk is dns hosted by cloudflare: 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

An ordered array of results matching the input domain list, where each item contains a boolean indicating whether the domain's DNS is hosted by Cloudflare, a per-item error field if the lookup failed, and an overall failure count for the batch.

## 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-bulk-231579e3/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)