Corvin VPN — Landing Page + Payment & Key Delivery System

A complete client-side system for a commercial VPN service.

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About the Project

Corvin VPN is a production VPN service focused on providing reliable access to blocked resources.

My contribution

I developed the entire client-facing part of the product:

• Modern responsive landing page
• Tariff selection pages with smooth animations
• Payment system integration
• Automatic key delivery via email after successful payment
• Detailed setup instructions page
• Public offer (legal agreement) page

Partner contribution

VPN infrastructure, Remnawave panel management and key generation are handled by NexOff.

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Features

Frontend

• Fully responsive design (desktop + mobile)
• Smooth animations and modern dark UI
• Pages: Home, Tariffs, Setup Instructions, Success, Public Offer
• FAQ accordion

Backend & Payments

• PHP payment creation
• Payment result handling
• Automatic sending of unique VPN key + setup instructions to the user’s email
• Order logging

Integrations

• Payment gateway (Robokassa / YooKassa)
• Email delivery of keys
• Remnawave (VPN key and server management)

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Tech Stack

Layer	Technologies
Frontend	HTML5, CSS3, Vanilla JavaScript
Backend	PHP
Payments	Robokassa / YooKassa
VPN Panel	Remnawave
Protocols	VLESS, Hysteria, Trojan

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Project Structure

├── index.html              # Main landing page
├── tariff.html             # Tariff selection page
├── setup.html              # Setup instructions
├── success.html            # Successful payment page
├── oferta.html             # Public offer (legal)
├── pay.php                 # Create payment
├── result.php              # Handle payment result + deliver key
├── styles.css              # Main styles
├── tariff.css              # Tariff page styles
├── setup.css               # Setup page styles
├── script.js               # Main scripts
├── tariff.js               # Tariff page scripts
├── setup.js                # Setup page scripts
├── icons/                  # Icons
├── screenshots/            # Project screenshots
└── *.png / *.jpg           # Images and banners

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Important Notes

• All sensitive data (payment gateway secrets, SMTP credentials, Remnawave API keys) have been removed and replaced with placeholders.
• Actual VPN key generation and server management are handled via the Remnawave panel by the partner.
• This project has been running in production.

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Local Setup

1. Place the files on any PHP-enabled server (or use php -S localhost:8000)
2. Replace placeholder credentials in pay.php and result.php
3. Open index.html

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Screenshots

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Authors

• Alexander Busygin — Client-side development, landing page, payment system, key delivery logic
• NexOff — Remnawave infrastructure, server management and key generation