Free Domain Extensions Available for Registration: A Complete Guide to DigitalPlatDev/FreeDomain

The FreeDomain platform offers four free domain extensions for registration: .dpdns.org, .us.kg, .qzz.io, and .xx.kg, hard-coded into the registration form at opensource/frontend/domainreg.html.

The DigitalPlatDev/FreeDomain repository provides an open-source solution for registering domain names without cost. Understanding which domain extensions are available for free registration helps developers and hobbyists select the appropriate namespace for their projects. This guide examines the four supported TLDs, their technical implementations, and how to interact with them programmatically.

The Four Free Domain Extensions Available for Registration

The platform currently supports four distinct top-level domains, each serving different use cases from generic DNS services to country-code namespaces.

.dpdns.org – DigitalPlat DNS Service

The .dpdns.org extension serves as the primary generic domain managed by the DigitalPlat DNS service. This extension is ideal for personal projects, development environments, and temporary hosting needs where a recognizable domain structure is preferred.

.us.kg – Kyrgyzstan Country Code

The .us.kg extension represents a country-code domain for Kyrgyzstan, provided through the NIC us.kg registry. Despite its geographic origin, this extension functions as a generic alternative suitable for international users seeking short, memorable domain names.

.qzz.io – Generic .io Alternative

The .qzz.io extension offers an alternative within the .io namespace, commonly associated with technology and startup projects. This TLD provides the technical credibility of the .io extension while remaining freely accessible.

.xx.kg – Experimental Kyrgyzstan Namespace

The .xx.kg extension represents an experimental namespace related to Kyrgyzstan infrastructure. This TLD is designated for testing purposes and experimental deployments where developers need isolated domain environments.

Where Free Domain Extensions Are Defined in the Source Code

The available domain extensions are hard-coded directly into the user-facing registration interface. In opensource/frontend/domainreg.html at lines 50-53, the HTML <select> element defines the exclusive list of valid options:

<select name="extension" id="extension" class="input-field">
    <option value=".dpdns.org">.dpdns.org</option>
    <option value=".us.kg">.us.kg</option>
    <option value=".qzz.io">.qzz.io</option>
    <option value=".xx.kg">.xx.kg</option>
</select>

The backend validation logic enforces this same whitelist. When processing registration requests, the server verifies that the submitted extension parameter matches one of these four values before proceeding with domain creation. The domain management interface at opensource/frontend/domainmgr.html references these same extensions when displaying registered domains.

How to Register a Free Domain Extension Programmatically

Developers can interact with the registration system using standard HTTP requests. The platform accepts POST requests containing the domain name and selected extension.

HTML Form Implementation

To create a registration interface, structure your form to match the expected parameters:

<!-- FreeDomain registration form – select a free TLD -->
<form action="/register" method="POST">
  <label for="name">Domain name (without extension)</label>
  <input type="text" name="name" id="name" placeholder="example" required>

  <label for="extension">Extension</label>
  <select name="extension" id="extension">
    <option value=".dpdns.org">.dpdns.org</option>
    <option value=".us.kg">.us.kg</option>
    <option value=".qzz.io">.qzz.io</option>
    <option value=".xx.kg">.xx.kg</option>
  </select>

  <button type="submit">Register for Free</button>
</form>

JavaScript API Integration

For dynamic applications, use the Fetch API to submit registration requests:

async function registerDomain(name, extension) {
  const response = await fetch('/api/register', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ name, extension })
  });

  const result = await response.json();
  if (response.ok) {
    console.log(`✅ ${name}${extension} registered!`);
  } else {
    console.error('❌ Registration failed:', result.error);
  }
}

// Register "myproject" under the free .us.kg TLD
registerDomain('myproject', '.us.kg');

Backend Validation and WHOIS Support

The opensource/whois_server/ directory contains the WHOIS lookup infrastructure supporting these four extensions. When a domain is registered, the system creates corresponding records in the WHOIS database for .dpdns.org, .us.kg, .qzz.io, and .xx.kg namespaces.

The backend validation strictly enforces the extension whitelist. If a client submits a registration request with an extension not found in the HTML select options (such as .com or .net), the server rejects the request with a validation error before any domain creation logic executes.

Summary

• Four free extensions are available: .dpdns.org, .us.kg, .qzz.io, and .xx.kg
• Hard-coded in HTML at opensource/frontend/domainreg.html lines 50-53
• Backend validation enforces this whitelist exclusively
• WHOIS support exists for all four TLDs via opensource/whois_server/
• Programmatic access available via POST requests to /register or /api/register

Frequently Asked Questions

Can I register domains with other extensions for free?

No. The FreeDomain platform only supports the four hard-coded extensions defined in opensource/frontend/domainreg.html. The backend validation explicitly rejects any extension not in the whitelist, including popular TLDs like .com, .org, or .net. To use other extensions, you must utilize traditional paid domain registrars.

Are these free domain extensions permanent?

The availability of these extensions depends on the underlying registry operators and the DigitalPlat DNS infrastructure. While the code in DigitalPlatDev/FreeDomain defines them as current options, the README.md indicates that extensions may be added or removed in future updates. Users should monitor the repository for changes to the supported TLD list in opensource/frontend/domainreg.html.

How does the backend validate the extension selection?

The backend checks the submitted extension parameter against the whitelist defined in the frontend HTML. When processing a registration request at /api/register, the server verifies that the extension value matches one of the four options: .dpdns.org, .us.kg, .qzz.io, or .xx.kg. If validation fails, the server returns an error response before any domain creation occurs, ensuring database integrity.

Where can I manage my registered free domains?

After registration, users can manage their domains through the interface defined in opensource/frontend/domainmgr.html. This management page displays all registered domains using the same four extensions and provides options for DNS configuration, renewal settings, and WHOIS information updates. The management interface references the same extension whitelist to ensure consistency with the registration system.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}