# Domain RDAP Lookup, WHOIS Replacement (`gubidonius/domain-rdap-lookup`) Actor

Registration date, expiry, registrar, nameservers and DNS provider for any domain, from the registries themselves over RDAP. Finds the right registry for you across 1,200 top level domains. No key and no login.

- **URL**: https://apify.com/gubidonius/domain-rdap-lookup.md
- **Developed by:** [Gregory Bolshakov](https://apify.com/gubidonius) (community)
- **Categories:** Developer tools, MCP servers, Agents
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per event

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?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
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.
Actors are written with capital "A".

## 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.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## Domain RDAP Lookup

Registration date, expiry, registrar, nameservers and DNS provider for any domain, taken
from the registries themselves.

### Why this is not a WHOIS scraper

RDAP is what replaced WHOIS. It is structured JSON, it is official, and it needs no key. The
awkward part is that there is no single endpoint: every top level domain is served by its own
registry, and you have to know which. This Actor loads IANA's own map and routes each domain
to the registry that owns it.

### What you get

`registeredAt`, `expiresAt`, `updatedAt`, the registrar name, the status flags, the
nameservers, and `dnsProvider`, which is the nameserver suffix. That last one is usually
the answer people actually wanted: whether a company is on Cloudflare, on AWS, or running
its own.

`updatedAt` is the last real change to the record. Registries also publish a "last update of
RDAP database" timestamp that changes every time you look, and this Actor does not report
that as a change, because it is not one.

### Two answers that are not errors

**A domain nobody owns** comes back as a row with `registered` set to false. That is a real
answer and it is what makes this usable for checking availability across a list.

**A top level domain with no RDAP server** is reported by name in the run summary. This is
not a rare edge: measured 2026-08-29, IANA lists 1,200 top level domains with a server, and
`.io` and `.de` are not among them. Nobody can look those up this way, and a tool that
silently returns nothing for them is telling you the domain is free when it is not.

### Notes

The same domain twice in a pasted list is looked up and billed once. Five lookups run in
parallel by default, which is polite to registries that are often small operations.

### Access

Free and no key. The IANA map is fetched once per run.

# Actor input Schema

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

A bare name or a full URL. Both work, and a URL is reduced to its domain.

## `includeUnregistered` (type: `boolean`):

A domain nobody owns comes back as a row with registered set to false. Turn this off to keep only registered ones.

## `concurrency` (type: `integer`):

Registries are small operations. Five at a time is polite and fast enough for a long list.

## Actor input object example

```json
{
  "domains": [
    "anthropic.com",
    "stripe.com",
    "openai.com"
  ],
  "includeUnregistered": true,
  "concurrency": 5
}
```

# Actor output Schema

## `domains` (type: `string`):

Registration dates, registrar, nameservers and DNS provider.

## `summary` (type: `string`):

How many were registered, and which inputs had no RDAP server or were not domains.

# 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": [
        "anthropic.com",
        "stripe.com",
        "openai.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("gubidonius/domain-rdap-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": [
        "anthropic.com",
        "stripe.com",
        "openai.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("gubidonius/domain-rdap-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": [
    "anthropic.com",
    "stripe.com",
    "openai.com"
  ]
}' |
apify call gubidonius/domain-rdap-lookup --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,gubidonius/domain-rdap-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/xq0Eh1glklGw429Yh/builds/3ghk4T2MwfwZfAp4v/openapi.json