# is-dns-hosted-by-vercel-bulk

> is-dns-hosted-by-vercel-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 2026-10-20).

Checks up to 20 domains in one call to determine whether each is DNS-hosted by Vercel, returning a per-item result with error details and a total failure count.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/bulk/dns/hosted-by/vercel?utm_source=zero.xyz
- Price: $0.1/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-vercel-bulk-a4ecfb9e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QmpEwMS3DRoQh_DRT65JT

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-vercel-bulk-a4ecfb9e
```

Example prompt: Can you check these 15 domains and tell me which ones are using Vercel for DNS hosting: acme.com, widget.io, startupx.dev, ... — I need a result for each one and want to know if any checks fail.

## When to prefer this

Use this endpoint when you have 2–20 domains to check in a single operation and want to avoid making individual serial requests. It is the right choice for batch enrichment pipelines, domain portfolio audits, or any workflow where you hold a list of domains and need Vercel DNS hosting status with concurrency and ordered results. For a single domain, use the single-endpoint equivalent to avoid batch overhead.

## Known failure modes

- Input list exceeds 20 domains — batch limit exceeded error
- Invalid or malformed domain names cause per-item errors without failing the whole batch
- DNS resolution timeout for specific domains results in per-item error field populated
- Network or upstream DoH resolver failure may increase failure count
- Missing required 'input' query parameter returns a 400-level error

## How this service works

Bulk is dns hosted by vercel: 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 per-domain results matching the input order, each indicating whether the domain's DNS is hosted by Vercel (same answer as the single-domain endpoint), plus a per-item error field 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-vercel-bulk-a4ecfb9e/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)