# ICANN Lookup API

> ICANN Lookup returns domain registration details and is available as a workflow and API.

ICANN Lookup returns registrar, registration, expiry, status, name server, and DNSSEC details for a domain name or website link. It also returns publicly available registrant and abuse details; registrant information may be redacted, and some registries omit fields.

- Page: https://fous.com/workflows/icann-lookup
- Handle: `@icann-lookup`
- Category: [Security](https://fous.com/workflows/category/security)
- Source website: https://lookup.icann.org
- Last verified: Sep 29, 2026
- Fous is not affiliated with ICANN Lookup.

## Methods

### Get domain registration

Operation `get_domain_registration`, version 1. 1 credit per call.

Get a domain’s registrar, registration and expiry dates, statuses, name servers, DNSSEC and publicly available registrant and abuse details. Registrant information may be redacted; some registries do not publish every field.

**Input**

| Field | Type | Required | Example | Description |
|---|---|---|---|---|
| `domain` | string | yes | `"google.com"` | Domain name or pasted website link, for example google.com or https://www.google.com/about. |

**Input schema**

```json
{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "minLength": 3,
      "description": "Domain name or pasted website link, for example google.com or https://www.google.com/about.",
      "examples": [
        "google.com",
        "https://www.cloudflare.com/about/",
        "example.org"
      ]
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "domain": "google.com"
    },
    {
      "domain": "https://www.cloudflare.com/about/"
    },
    {
      "domain": "example.org"
    }
  ]
}
```

**Output**

| Field | Type | Example | Description |
|---|---|---|---|
| `domain` | string | `"google.com"` | Registered domain name. |
| `created` | string or null | `"1997-09-15"` | Registration date. |
| `statuses` | array |  | Registration statuses in words. |
| `expiry_date` | string or null | `"2028-09-14"` | Registry expiration date. |
| `lookup_link` | string | `"https://lookup.icann.org/"` | ICANN Lookup website for searching the domain. |
| `last_updated` | string or null | `"2019-09-09"` | Date registration was last changed. |
| `name_servers` | array |  | Published name servers. |
| `dnssec_enabled` | boolean or null | `false` | Whether DNSSEC delegation is signed, or null when unpublished. |
| `registrar_name` | string or null | `"MarkMonitor Inc."` | Name of the sponsoring registrar. |
| `days_until_expiry` | integer or null | `716` | Days from today until registry expiration. |
| `registrar_website` | string or null | `"http://www.markmonitor.com"` | Registrar website when published. |
| `registrant_country` | string or null | `"United States"` | Public registrant country; null if redacted or absent. |
| `abuse_contact_email` | string or null | `"abusecomplaints@markmonitor.com"` | Published registrar abuse email. |
| `registrant_organization` | string or null | `"Google LLC"` | Public registrant organization; null if redacted or absent. |

**Example input**

```json
{
  "domain": "google.com"
}
```

**Example output**

```json
{
  "domain": "google.com",
  "created": "1997-09-15",
  "statuses": [
    "client delete prohibited",
    "client transfer prohibited",
    "client update prohibited"
  ],
  "expiry_date": "2028-09-14",
  "lookup_link": "https://lookup.icann.org/",
  "last_updated": "2019-09-09",
  "name_servers": [
    "ns1.google.com",
    "ns2.google.com",
    "ns3.google.com"
  ],
  "dnssec_enabled": false,
  "registrar_name": "MarkMonitor Inc.",
  "days_until_expiry": 716,
  "registrar_website": "http://www.markmonitor.com",
  "registrant_country": "United States",
  "abuse_contact_email": "abusecomplaints@markmonitor.com",
  "registrant_organization": "Google LLC"
}
```

## Quick start

Call the API with a Fous API key (`FOUS_API_KEY`). To create one, turn on Developer mode in Fous Studio, then open Keys & connections → API keys (https://app.fous.com/keys).

```bash
# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
: "${FOUS_API_KEY:?Set FOUS_API_KEY before running this example}"

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 120 \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@icann-lookup",
  "visibility": "public",
  "operation": "get_domain_registration",
  "version": 1,
  "input": {
    "domain": "google.com"
  },
  "response": {
    "format": "json"
  }
}'
```

```python
# Save as fous.py and run with python3 fous.py. No packages needed.
# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
import json
import os
import urllib.error
import urllib.request

api_key = os.environ.get("FOUS_API_KEY")
if not api_key:
    raise RuntimeError("Set FOUS_API_KEY before running this example")

body = json.loads("{\n  \"api\": \"@icann-lookup\",\n  \"visibility\": \"public\",\n  \"operation\": \"get_domain_registration\",\n  \"version\": 1,\n  \"input\": {\n    \"domain\": \"google.com\"\n  },\n  \"response\": {\n    \"format\": \"json\"\n  }\n}")
request = urllib.request.Request(
    "https://api.fous.com/v1/query",
    data=json.dumps(body).encode("utf-8"),
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    method="POST",
)
try:
    with urllib.request.urlopen(request, timeout=120) as response:
        result = json.load(response)
except urllib.error.HTTPError as error:
    raise RuntimeError(f"HTTP {error.code}: {error.read().decode('utf-8', errors='replace')}") from error
if result.get("success") is False:
    raise RuntimeError(result.get("error", {}).get("message", "Request failed"))
print(json.dumps(result["data"]["output"], indent=2))
```

```typescript
// Save as fous.mts and run with npx tsx fous.mts.
// First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
const apiKey = process.env.FOUS_API_KEY;
if (!apiKey) throw new Error("Set FOUS_API_KEY before running this example");

const response = await fetch("https://api.fous.com/v1/query", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  signal: AbortSignal.timeout(120_000),
  body: JSON.stringify({
  "api": "@icann-lookup",
  "visibility": "public",
  "operation": "get_domain_registration",
  "version": 1,
  "input": {
    "domain": "google.com"
  },
  "response": {
    "format": "json"
  }
}),
});
type ApiResult = { success: boolean; data?: { output: unknown }; error?: { message: string } };
const result: ApiResult = await response.json();
if (!response.ok || result.success === false) {
  throw new Error(result.error?.message ?? `HTTP ${response.status}`);
}
if (!result.data) throw new Error("Missing API response data");
console.log(result.data.output);
```

Or describe the data in plain language: send `{"api":"@icann-lookup","prompt":"Describe the data you need, with every detail"}` to the same URL. Fous fills in the input, runs the method that fits and returns only the fields you asked for; `data.route.calls[].request` is the exact call it made. Routing is free; the run costs the same.

## Use cases

- Check a domain’s registrar and registration dates
- Review domain statuses and upcoming expiry
- Find published name servers and DNSSEC status
- Check publicly available registrant and abuse details

## FAQ

### Is Fous affiliated with ICANN Lookup?

No. Fous is not affiliated with ICANN Lookup. This workflow reads the public lookup.icann.org website and returns its data.

### How much does it cost?

Each run costs 1 credit. With pay-as-you-go, a credit costs 1¢; monthly plans cost less per credit.

### Do I need a ICANN Lookup account?

No. You only need a Fous account.

### How current is the data?

Fous gets the data from lookup.icann.org when you run it; repeating the same request within a day may return the saved result. Fous checks this workflow automatically; it last passed a check on Sep 29, 2026.

### When does a domain expire?

Get domain registration returns the registry expiration date and days until expiry.

### Who is the domain’s registrar?

Get domain registration returns the sponsoring registrar’s name and, when published, its website.

### Which name servers does a domain use?

Get domain registration returns the published name servers.

## Related

- [Google Public DNS API](https://fous.com/workflows/google-public-dns.md): Public DNS lookups and DNS-over-HTTPS from Google.
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- [Have I Been Pwned API](https://fous.com/workflows/have-i-been-pwned.md): Find public records of known data breaches.
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- [Domain.com.au API](https://fous.com/workflows/domain-com-au.md): Search Australian homes for sale, rent and recently sold on Domain.
- [Companies House API](https://fous.com/workflows/companies-house.md): Companies House returns UK public-register company details, officers, people with significant control and recent filings; records may be incomplete, and ceased entries are optional.
- [DuckDuckGo API](https://fous.com/workflows/duckduckgo.md): Private web search and instant answers.
- [All Security workflows](https://fous.com/workflows/category/security)