apiverve / fullyqualifieddomain

1.2.3 2026-10-26 14:38 UTC

Requires

• php: >=7.4
• guzzlehttp/guzzle: ^7.0

Requires (Dev)

• phpunit/phpunit: ^9.0

MIT

• APIVerve

• api
• apiverve
• fullyqualifieddomain
• fqdn api
• reverse dns lookup
• ip to fqdn
• ip to hostname
• ptr record lookup

Published on Packagist.org on 2026-10-26 17:22 UTC

README

Fully Qualified Domain resolves an IP address to its fully qualified domain name using reverse DNS PTR records. It returns the host FQDN, base domain, TLD, subdomain, and domain level count.

The Fully Qualified Domain API provides a simple, reliable way to integrate fully qualified domain functionality into your applications. Built for developers who need production-ready fully qualified domain capabilities without the complexity of building from scratch.

View API Details →

Available on:

Quick Start

Using JavaScript

async function callFullyQualifiedDomainAPI() {
    try {
        const params = new URLSearchParams({
            ip: '199.30.24.0'
        });

        const response = await fetch(`https://api.apiverve.com/v1/fullyqualifieddomain?${params}`, {
            method: 'GET',
            headers: {
                'x-api-key': 'YOUR_API_KEY_HERE'
            }
        });

        const data = await response.json();
        console.log(data);
    } catch (error) {
        console.error('Error:', error);
    }
}

callFullyQualifiedDomainAPI();

Using cURL

curl -X GET "https://api.apiverve.com/v1/fullyqualifieddomain?ip=199.30.24.0" \
  -H "x-api-key: YOUR_API_KEY_HERE"

Get your API key: https://apiverve.com

📁 For more examples, see the examples folder

Installation

Choose your preferred programming language:

📦 NPM (JavaScript/Node.js)

npm install @apiverve/fullyqualifieddomain

View NPM Package → | Package Code →

🔷 NuGet (.NET/C#)

dotnet add package APIVerve.API.FullyQualifiedDomain

View NuGet Package → | Package Code →

🐍 Python (PyPI)

pip install apiverve-fullyqualifieddomain

View PyPI Package → | Package Code →

💎 Ruby (RubyGems)

gem install apiverve_fullyqualifieddomain

View RubyGems Package → | Package Code →

🐘 PHP (Packagist)

composer require apiverve/fullyqualifieddomain

View Packagist Package → | Package Code →

🎯 Dart (pub.dev)

dart pub add apiverve_fullyqualifieddomain

View pub.dev Package → | Package Code →

🤖 Android (JitPack)

implementation 'com.github.apiverve:fullyqualifieddomain-api:1.0.0'

Package Code →

🐹 Go

go get github.com/apiverve/fullyqualifieddomain-api/go

Package Code →

Why Use This API?

Feature	Benefit
Multi-language SDKs	Native packages for JavaScript, Python, C#, Go, and Android
Simple Integration	Single API key authentication, consistent response format
Production Ready	99.9% uptime SLA, served from 24 global regions
Comprehensive Docs	Full examples, OpenAPI spec, and dedicated support

Documentation

• 🏠 API Home: Fully Qualified Domain API
• 📚 API Reference: docs.apiverve.com/ref/fullyqualifieddomain
• 📖 OpenAPI Spec: openapi.yaml
• 💡 Examples: examples/

What Can You Build?

The Fully Qualified Domain API is commonly used for:

• Web Applications - Add fully qualified domain features to your frontend or backend
• Mobile Apps - Native SDKs for Android development
• Automation - Integrate with n8n, Zapier, or custom workflows
• SaaS Products - Enhance your product with fully qualified domain capabilities
• Data Pipelines - Process and analyze data at scale

API Reference

Authentication

All requests require an API key in the header:

x-api-key: YOUR_API_KEY_HERE

Get your API key: https://apiverve.com

Response Format

Every APIVerve endpoint returns the same envelope — check status, then read data:

{
  "status": "ok",
  "error": null,
  "data": { ... }
}

Example Response

A real response from the Fully Qualified Domain API:

{
  "status": "ok",
  "error": null,
  "data": {
    "ip": "199.30.24.0",
    "baseDomain": "msn.com",
    "fqdn": "msnbot-199-30-24-0.search.msn.com",
    "tld": "com",
    "subdomain": "msnbot-199-30-24-0.search",
    "domainLevels": 5,
    "detected": true
  }
}

Support & Community

• 🏠 API Home: Fully Qualified Domain API
• 💬 Support: https://apiverve.com/contact
• 🐛 Issues: GitHub Issues
• 📖 Documentation: https://docs.apiverve.com
• 🌐 Website: https://apiverve.com

Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

Security

For security concerns, please review our Security Policy.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

Built with ❤️ by APIVerve

Copyright © 2026 APIVerve. All rights reserved.