Domain Checker 🌐

Domain Checker is a high-performance web utility built with React and Vite designed to streamline lead generation and SEO workflows. It allows users to cross-reference massive lists of prospect URLs against existing domain databases to identify unique opportunities and filter out duplicates instantly.

🚀 Key Features

• Excel Integration: Seamlessly upload .xlsx or .csv files containing prospect lists and existing domain databases.

• Intelligent Domain Parsing: Automatically extracts root domains (e.g., example.com) from complex URLs, including smart handling of various TLDs and sub-labels.

• Duplicate Detection: Instantly identifies which prospect URLs belong to domains you already have in your database.

• Real-time Reporting: Generates a comprehensive, multi-sheet Excel report containing "Unique Prospects" and "Duplicate Prospects" for easy data management.

• Privacy-First: Processes all data locally within the browser using FileReader and XLSX, ensuring sensitive lead data is never uploaded to a server.

• Modern UI: Features a sleek, dark-themed "Glassmorphism" interface inspired by modern design palettes.

🛠️ Tech Stack

• Frontend: React.js with Vite for optimized builds.

• Styling: Custom CSS with a neon-lime accent theme and responsive card-based layout.

• Utilities:

  • SheetJS (XLSX): For robust Excel file parsing and generation.

  • Lucide React: For professional iconography.

• Build Tool: Vite.

📁 Project Structure

Plaintext

src/
├── assets/           # UI assets and SVGs
├── utils/            # Core logic (Excel processing, domain parsing)
│   └── excelProcessor.js
├── App.jsx           # Main application logic and state
├── App.css           # Custom theme and layout styles
└── main.jsx          # Entry point

⚙️ Installation & Usage

1. Install dependencies:

   Bash

   npm install
   
   

2. Start the app:

   Bash

   npm run dev
   
   

3. Process Data:

   • Upload your Prospects List (new URLs).

   • Upload your Existing Domains (database to check against).

   • Click Process Data to analyze.

   • Download the Unique Prospects Report to save your filtered results.

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Created by Shakeeb to automate and secure the domain filtering process.