# Is DNS Hosted by Cloudflare Registrar

> Is DNS Hosted by Cloudflare Registrar is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Checks whether a domain's DNS is hosted by Cloudflare Registrar by looking up NS records via Cloudflare DoH and matching them against Cloudflare Registrar nameserver patterns.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/hosted-by/cloudflare-registrar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-dns-hosted-by-cloudflare-registrar-84ffd32c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MqYIy7WZa7ZXL5X8jEpwJ

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-84ffd32c
```

Example prompt: Can you check if example.com has its DNS hosted by Cloudflare Registrar — I need to know if their nameservers match Cloudflare Registrar's patterns?

## When to prefer this

Use this endpoint when you specifically need to detect whether a domain's DNS is managed through Cloudflare Registrar (as opposed to Cloudflare CDN/proxy). Ideal for sales prospecting, vendor segmentation, migration planning, and security reconnaissance where nameserver-level hosting attribution is needed. Prefer this over generic WHOIS or NS lookups when you want a definitive yes/no with matched patterns specific to Cloudflare Registrar.

## Known failure modes

- Domain does not exist or has no NS records — returns no match with empty nameservers
- Cloudflare DoH service unavailable — lookup fails with connectivity error
- Invalid domain format provided — returns input validation error
- Domain uses Cloudflare CDN but not Cloudflare Registrar — correctly returns no match

## How this service works

Is the domain's DNS hosted by cloudflare registrar? Looks up the NS records (Cloudflare DoH) and matches them against cloudflare-registrar's nameserver patterns, returning yes/no, the nameservers and which ones matched. Vendor detection for sales, migration and security work. $0.01 per lookup.

## Output

Returns a yes/no indicator of whether the domain's DNS is hosted by Cloudflare Registrar, the full list of NS records retrieved via Cloudflare DoH, and a subset of matched nameservers that conform to Cloudflare Registrar nameserver patterns.

## 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-84ffd32c/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)