# is-dns-hosted-by-1and1-bulk

> is-dns-hosted-by-1and1-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).

Bulk-checks whether up to 20 domains are DNS-hosted by 1&1 (IONOS), returning concurrent 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/1and1?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-1and1-bulk-3e78edae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XFFkagwplwkxGQzdUudU3

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-1and1-bulk-3e78edae
```

Example prompt: Can you check whether these 15 domains — example.com, mybrand.net, testsite.org, and so on — are using 1&1 (IONOS) for their DNS hosting, all in one batch call?

## When to prefer this

Use this endpoint when you need to check more than one domain at a time for 1&1 DNS hosting — it processes up to 20 domains concurrently in a single $0.10 USDC call, which is far more efficient than calling the single-domain endpoint repeatedly. Prefer this for batch enrichment workflows, portfolio audits, or any pipeline where you hold a list of domains. If you only need to check one domain, the single-item sibling endpoint avoids the batch overhead.

## Known failure modes

- Input list exceeds 20 domains — batch limit enforced
- Individual domain DNS lookup fails — reflected in per-item error field and increments failure count
- Malformed domain name in input — per-item error returned
- DNS resolution timeout for a specific domain — counted as failure with error detail
- Payment not provided or invalid — 402 response, no results returned

## How this service works

Bulk is dns hosted by 1and1: 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 results matching the input domain list. Each item indicates whether that domain's NS records resolve to 1&1 (IONOS) nameservers (true/false), includes a per-item error field if the lookup failed, and the overall response includes a count of how many items failed.

## 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-1and1-bulk-3e78edae/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)