URL Validator

Live Documentation

A lightweight and efficient URL validation package for JavaScript/TypeScript applications. This package helps developers validate URL syntax, check if a URL is live, and ensure proper domain formatting for better security.

✨ Features

• ✅ Validate URL Format – Ensures the URL follows the correct syntax.
• ✅ Check If a URL is Live – Uses an HTTP request to verify if a URL is reachable.
• ✅ Ensure Valid Protocols – Only accepts http:// and https:// URLs.
• ✅ Validate Domain and TLD – Ensures URLs have a proper domain and top-level domain.
• ✅ Block Invalid IP Addresses – Prevents malformed or private IPs.
• ✅ Customizable Allowed Status Codes – Define which HTTP status codes should be considered "live".
• ✅ Handles Redirects – Follows up to 5 redirects by default.
• ✅ Lightweight & Fast – Minimal dependencies for quick performance.
• ✅ TypeScript Support – Fully typed for safer and better development.
• ✅ Unit Tested – Built with Jest to ensure reliability.

📚 Installation

npm install @the-node-forge/url-validator

or using Yarn:

yarn add @the-node-forge/url-validator

🛠️ Basic Usage

1⃣ Validate URL Format

Easily check if a URL is properly formatted and follows best practices.

import { validateUrl } from '@the-node-forge/url-validator';

console.log(validateUrl('https://example.com')); // ✅ true
console.log(validateUrl('htp://invalid-url')); // ❌ false
console.log(validateUrl('http://example')); // ❌ false (Missing TLD)
console.log(validateUrl('http://999.999.999.999')); // ❌ false (Invalid IP Address)
console.log(validateUrl('http://exa mple.com')); // ❌ false (Contains spaces)

2⃣ Check If a URL is Live

Test if a URL is reachable by sending a request with customizable allowed status codes.

import { isUrlLive } from '@the-node-forge/url-validator';

isUrlLive('https://example.com').then(console.log); // ✅ true/false

Customizing Allowed Status Codes

By default, the following status codes are considered "live": [200, 301, 302, 403]. You can override this list if needed:

isUrlLive('https://example.com', [200, 301, 302]).then(console.log); // ✅ true if status is in the list

✅ API Reference

validateUrl Function

validateUrl(url: string): boolean;

| Parameter | Type | Description | | --------- | -------- | -------------------- | | url | string | The URL to validate. |

Returns: boolean – true if the URL is valid, otherwise false.

isUrlLive Function

isUrlLive(url: string, allowedStatusCodes?: number[]): Promise<boolean>;

| Parameter | Type | Description | | -------------------- | --------------------- | -------------------------------------------------------- | | url | string | The URL to check if it's live. | | allowedStatusCodes | number[] (optional) | A list of status codes that should be considered "live". |

Returns: Promise<boolean> – Resolves to true if the URL is reachable and returns a status in allowedStatusCodes, otherwise false.

💡 Contributing

Contributions are welcome! Please submit
issues or
pull requests.

⭐ Support

If you find this package useful, please give it a ⭐ on
GitHub

🔗 Links

• 📚 NPM Package
• 🏗 The Node Forge