# Bulk Domain Checker (`kawsar/bulk-domain-checker`) Actor

Bulk domain checker that extracts domain availability status across 80+ extensions so you can find unregistered names fast. A powerful domain finder tool that helps you secure the best domain for your business or personal website.

- **URL**: https://apify.com/kawsar/bulk-domain-checker.md
- **Developed by:** [Kawsar](https://apify.com/kawsar) (community)
- **Categories:** Developer tools, Automation
- **Stats:** 5 total users, 0 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $2.99 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

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

## Bulk Domain Checker: Check Domain Availability Across 80+ TLDs

Check domain availability for hundreds of names in one run. This bulk domain checker queries your list against 80+ top-level domain extensions and tells you exactly which ones are free to register. Give it a base name like `kawsarlog` and it checks every extension. Give it a specific domain like `kawsarlog.com` and it returns only that one.

### Use cases

- **Domain scouting**: run a list of brand name ideas and see which extensions are still available before committing.
- **Brand protection monitoring**: check all extensions of your brand name regularly to catch new registrations early.
- **Agency domain research**: validate domain availability for client projects without manually checking one at a time.
- **Domain drop catching**: monitor targets to detect when a registered domain becomes available again.
- **Bulk TLD filtering**: input full domains (like `example.com`) to check only that specific extension without noise from others.

### Input

| Parameter | Type | Default | Description |
|-----------|------|---------|-------------|
| `domains` | array | — | Domain names to check. Use the base label (e.g., `example`) to search all TLDs, or the full domain (e.g., `example.com`) to target only that extension. |
| `maxItems` | integer | 100 | Maximum number of domains to process per run. |
| `timeoutSecs` | integer | 300 | Actor timeout in seconds. |
| `proxyConfiguration` | object | Datacenter (Anywhere) | Optional proxy settings. Switching to Residential proxies can help if the API blocks datacenter IPs. |

#### Example input

Search all TLDs for a base name, and check one specific extension at the same time:

```json
{
    "domains": [
        "kawsarlog",
        "example.com"
    ],
    "maxItems": 100,
    "timeoutSecs": 300,
    "proxyConfiguration": {
        "useApifyProxy": true
    }
}
```

### What data does this actor extract?

Each domain result maps to one row in the dataset:

```json
{
  "domain": "kawsarlog.com",
  "isRegistered": true,
  "available": false,
  "label": "kawsarlog",
  "tld": "com",
  "tldDescription": "The most globally recognized domain extension, originally created for commercial entities...",
  "buyUrl": "https://www.hostinger.com/domain-name-results?domain=kawsarlog.com&from=domain-name-search&REFERRALCODE=Kawsarlog"
}
```

| Field | Type | Description |
|-------|------|-------------|
| `domain` | string | Full domain name including TLD. |
| `isRegistered` | boolean | True if already registered, false if it is free. |
| `available` | boolean | True if the domain is free to register. The inverse of `isRegistered`. |
| `label` | string | The base portion of the domain name without the extension. |
| `tld` | string | The top-level domain extension (com, net, io, etc.). |
| `tldDescription` | string | A full description of what the TLD is for and who it suits. |
| `buyUrl` | string | Direct link to check and purchase the domain on Hostinger. |

### How it works

1. The actor reads your list of domains and strips out any duplicates.
2. For each base name, it generates the required hash to authenticate against the Instant Domain Search API.
3. It queries all 80+ supported TLDs and filters the response, returning only the TLD you asked for if you provided one, or the full set if you gave just the base name.
4. Results are structured and pushed to the dataset for downstream use. Errors on individual domains are captured as a generic error field and do not stop the rest of the run.

### Key Features

- **Bulk domain availability checking**: check hundreds of domain names in a single run instead of manually searching one by one.
- **80+ TLD coverage**: automatically checks popular domain extensions including `.com`, `.net`, `.org`, `.io`, `.ai`, `.co`, and many country-code domains.
- **Smart base-name scanning**: input a single keyword such as `startupbrand` and instantly see which domain extensions are available.
- **Exact domain lookup**: input `startupbrand.com` and the tool will check only that specific extension.
- **Fast API-powered results**: queries the Instant Domain Search API to return accurate availability data.
- **Structured dataset output**: results are returned in a clean JSON format ready for automation pipelines or integrations.
- **Direct purchase links**: each available domain includes a link to register the domain instantly.

***

### Supported TLD Coverage

This bulk domain checker supports **80+ domain extensions**, including the most widely used generic and country-code top-level domains.

Common examples include:

`.com, .net, .org, .io, .co, .ai, .app, .dev, .tech, .xyz, .store, .online, .site, .space, .shop`

Country-code domains such as:

`.us, .uk, .de, .fr, .it, .es, .nl, .ca, .in, .au, .jp, .cn`

This wide TLD coverage allows you to:

- Discover alternative brand domains when `.com` is taken
- Find premium startup-style extensions like `.io`, `.ai`, `.tech`
- Monitor international brand availability across multiple markets

### FAQ

**What happens if I input `example.com` instead of `example`?**
The actor extracts the base label (`example`) for the API query, then filters the results to return only the `.com` record. You get exactly one result per specific domain you input.

**What happens if a domain fails to resolve?**
The actor does not crash. It pushes a record with `isRegistered: null`, `available: null`, and a generic `error` field so you can identify which domains need a retry.

**Can it check country-code domains like .de or .jp?**
Yes. The supported TLD list includes country codes for the US, UK, EU, Canada, India, Australia, Germany, France, Italy, Spain, Netherlands, Russia, China, and Japan.

**How many domains can I check per run?**
The default cap is 100 domains. Raise `maxItems` up to 1000 to process larger batches.

# Actor input Schema

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

List of domains to check (e.g. example or example.com).

## `maxItems` (type: `integer`):

Maximum number of total domains to process.

## `timeoutSecs` (type: `integer`):

Maximum time for the actor to run in seconds.

## `proxyConfiguration` (type: `object`):

Select proxies to avoid IP blocks. Datacenter proxies are fastest.

## Actor input object example

```json
{
  "domains": [
    "kawsarlog"
  ],
  "maxItems": 100,
  "timeoutSecs": 300,
  "proxyConfiguration": {
    "useApifyProxy": true
  }
}
```

# 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": [
        "kawsarlog"
    ],
    "proxyConfiguration": {
        "useApifyProxy": true
    }
};

// Run the Actor and wait for it to finish
const run = await client.actor("kawsar/bulk-domain-checker").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": ["kawsarlog"],
    "proxyConfiguration": { "useApifyProxy": True },
}

# Run the Actor and wait for it to finish
run = client.actor("kawsar/bulk-domain-checker").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": [
    "kawsarlog"
  ],
  "proxyConfiguration": {
    "useApifyProxy": true
  }
}' |
apify call kawsar/bulk-domain-checker --silent --output-dataset

```

## MCP server setup

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

```

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/GjgOG0WJMteXgU1Bg/builds/xfSRxCDfjdvILE8hT/openapi.json