# WHOIS Lookup & Domain Expiry Checker: Bulk RDAP + DNS (`swiftkit/domain-lookup`) Actor

Bulk WHOIS domain lookup from the official registry RDAP service: registrar, creation and expiry dates, domain age, status, name servers, DNSSEC, plus DNS (A, MX, SPF, DMARC). Also tells you if a domain is available.

- **URL**: https://apify.com/swiftkit/domain-lookup.md
- **Developed by:** [SwiftKit](https://apify.com/swiftkit) (community)
- **Categories:** Developer tools, SEO tools, Business
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $2.00 / 1,000 domain checkeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Domain WHOIS & DNS Lookup: Expiry, Registrar, Availability

Look up many domains at once and get clean registration data straight from the **official
registry service (RDAP)**, the modern replacement for WHOIS run by the registries themselves.

For each domain: **registrar, creation date, expiry date, domain age, days until expiry, status
codes, name servers, DNSSEC**, the owner's organization when it's published, and **DNS records**
(A, AAAA, MX, NS, TXT, SPF, DMARC). Unregistered domains come back as `available`.

### Who it's for

- **Domain investors:** check expiry dates and availability for long lists.
- **Sales and lead research:** domain age, email provider (from MX) and owner organization.
- **Security and brand protection:** spot look-alike domains, check SPF/DMARC setup.
- **IT and agencies:** never miss a client's domain renewal.
- **AI agents:** one call, structured JSON.

### Input

| Field | What it does |
|---|---|
| **Domains** | One per line. URLs work too: `https://www.bbc.co.uk/news` → `bbc.co.uk`. |
| Include DNS records | A, AAAA, MX, NS, TXT, SPF, DMARC. |
| Include raw RDAP response | The full registry answer, for advanced use. |

### Output

```json
{
  "domain": "stripe.com",
  "status": "registered",
  "registrar": "SafeNames Ltd.",
  "createdAt": "1995-09-12T04:00:00Z",
  "expiresAt": "2027-09-11T04:00:00Z",
  "ageDays": 11342,
  "daysUntilExpiry": 344,
  "domainStatus": ["client transfer prohibited", "server delete prohibited"],
  "nameservers": ["ns-1087.awsdns-07.org", "ns-423.awsdns-52.com"],
  "dnssec": false,
  "registrantOrganization": null,
  "dns": { "mx": ["aspmx.l.google.com"], "spf": "v=spf1 include:_spf.google.com …", "dmarc": "v=DMARC1; p=reject; …" }
}
```

`status` is `registered`, `available`, `no_rdap_for_tld`, `invalid_domain` or `lookup_failed`.

### Pricing

You pay **per domain checked** (registered or available). Invalid domains, failed lookups and
endings without an official RDAP service are free. See the Pricing tab.

### Limits, honestly

- All generic endings (.com, .net, .org, .io, .ai, .app…) and many country endings (.uk, .fr,
  .nl…) have official RDAP. Some country endings (for example .de and .jp) don't yet; those
  return `no_rdap_for_tld` with DNS records, free of charge.
- Owner details are usually redacted for privacy by the registries. We only output the owner's
  **organization** when the registry publishes it, never a private person's name or contacts.
- "Available" means the registry has no record right now. Premium or reserved names may still
  not be purchasable at normal prices.

### More tools from SwiftKit

- [Tech Stack Detector](https://apify.com/swiftkit/tech-stack): what a website is built with: CMS, analytics, ecommerce, hosting
- [Email Validator](https://apify.com/swiftkit/email-check): clean email lists: MX, disposable, typos, duplicates
- [Website Contact Finder](https://apify.com/swiftkit/website-contacts): company socials, phones and shared inboxes from a website
- [Lighthouse Audit](https://apify.com/swiftkit/lighthouse-audit): bulk page speed, SEO and Core Web Vitals scores

### Questions?

Open an issue on the Issues tab.

# Actor input Schema

## `domains` (type: `array`):

One per line: example.com, or any URL (the domain is taken from it).

## `includeDns` (type: `boolean`):

Adds A, AAAA, MX, NS, TXT, SPF and DMARC records.

## `includeRawRdap` (type: `boolean`):

Adds the full registry answer for advanced use.

## `maxConcurrency` (type: `integer`):

How many domains to look up in parallel.

## Actor input object example

```json
{
  "domains": [
    "stripe.com",
    "bbc.co.uk",
    "my-new-startup-idea-2026.com"
  ],
  "includeDns": true,
  "includeRawRdap": false,
  "maxConcurrency": 10
}
```

# Actor output Schema

## `results` (type: `string`):

One row per domain.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "domains": [
        "stripe.com",
        "bbc.co.uk",
        "my-new-startup-idea-2026.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("swiftkit/domain-lookup").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "domains": [
        "stripe.com",
        "bbc.co.uk",
        "my-new-startup-idea-2026.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("swiftkit/domain-lookup").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "domains": [
    "stripe.com",
    "bbc.co.uk",
    "my-new-startup-idea-2026.com"
  ]
}' |
apify call swiftkit/domain-lookup --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,swiftkit/domain-lookup"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/Hf8C1qokPi2lZrDk2/builds/yMQ8bs4mynW7iiZKh/openapi.json