Introduction

Turbo CDN is a next-generation intelligent download accelerator built in Rust. It automatically optimizes download speeds through geographic detection, CDN quality assessment, and smart download strategies.

Why Turbo CDN?

The Problem

Downloading files from the internet can be slow and unreliable due to:

• Geographic Distance: Servers may be far from your location
• Network Congestion: Popular servers can become overloaded
• Single Point of Failure: Direct downloads have no fallback options
• Manual Configuration: Users must manually find and configure mirrors

The Solution

Turbo CDN solves these problems with:

• Automatic Geographic Detection: Identifies your region and selects optimal mirrors
• Real-time Quality Assessment: Continuously monitors CDN performance
• Smart Download Mode: Automatically chooses the fastest download method
• Comprehensive Mirror Coverage: 16+ CDN rules across 6+ package managers

Key Features

🌐 Intelligent Geographic Detection

• Automatic IP geolocation with multiple API fallbacks
• Network performance testing when IP detection fails
• Smart caching to avoid repeated detection calls
• Optimized for China, Asia-Pacific, Europe, North America, and Global regions

📊 Real-time CDN Quality Assessment

• Performance monitoring: latency, bandwidth, and availability
• Comprehensive 0-100 quality scoring algorithm
• Dynamic URL ranking based on real-time performance
• Background asynchronous quality evaluation

⚡ High-Performance Architecture

• mimalloc: High-performance memory allocator
• reqwest + rustls: Cross-platform HTTP client with TLS
• Adaptive Concurrency: Network condition-based parallelization
• Smart Chunking: IDM-style adaptive chunk sizing
• DNS Caching: High-performance resolution with hickory-dns

🔗 Extensive CDN Coverage

Source	Mirrors	Regions
GitHub	7 mirrors	China, Asia, Global
PyPI	3 mirrors	China
Crates.io	2 mirrors	China
Go Modules	2 mirrors	China
Docker Hub	3 mirrors	China
Maven	2 mirrors	China
jsDelivr	5 nodes	Global

Architecture Overview

┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│   Input URL     │───▶│ Geographic       │───▶│ CDN Quality     │
│                 │    │ Detection        │    │ Assessment      │
└─────────────────┘    └──────────────────┘    └─────────────────┘
                                │                        │
                                ▼                        ▼
┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│ URL Mapper      │    │ Real-time        │    │ Dynamic         │
│ (16+ Rules)     │    │ Performance      │    │ Ranking         │
└─────────────────┘    └──────────────────┘    └─────────────────┘
                                │                        │
                                ▼                        ▼
┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│ Adaptive        │    │ Smart Chunking   │    │ DNS Cache       │
│ Concurrency     │    │ Algorithm        │    │ System          │
└─────────────────┘    └──────────────────┘    └─────────────────┘
                                │                        │
                                ▼                        ▼
┌─────────────────┐    ┌──────────────────┐    ┌─────────────────┐
│ Load Balancer   │    │ High-Performance │    │ Downloaded      │
│ (Multi-Strategy)│    │ HTTP Client      │    │ File            │
└─────────────────┘    └──────────────────┘    └─────────────────┘

Use Cases

CLI Tool

Perfect for:

• Downloading GitHub releases
• Fetching package manager artifacts
• Batch downloading with CDN optimization

Library Integration

Ideal for:

• Build tools (like vx)
• Package managers
• CI/CD pipelines
• Any application needing fast, reliable downloads

Next Steps

• Quick Start - Get up and running in minutes
• Installation - Detailed installation options
• API Reference - Complete API documentation