1. Open Chrome / Chrome را باز کنید
2. Go to Settings / به Settings بروید
   • Tap the three dots (⋮) in the top right corner
   • Select Settings
3. Navigate to Privacy and Security / به Privacy and Security بروید
   • Scroll down and tap Privacy and security
   • Tap Security
4. Enable Secure DNS / Secure DNS را فعال کنید
   • Find "Use secure DNS" option
   • Toggle it ON
   • Select "With your custom service provider"
5. Enter Your DoH Endpoint / Endpoint DoH خود را وارد کنید
   • Enter your worker URL: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use the live demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
   • Tap Save
6. Done! / تمام شد!
   • Your DNS queries are now encrypted and secure

1. Open Chrome / Chrome را باز کنید
2. Go to Settings / به Settings بروید
   • Click the three dots (⋮) in the top right corner
   • Select Settings
3. Navigate to Privacy and Security / به Privacy and Security بروید
   • Click Privacy and security in the left sidebar
   • Click Security
4. Enable Secure DNS / Secure DNS را فعال کنید
   • Scroll down to "Advanced" section
   • Find "Use secure DNS" option
   • Toggle it ON
   • Select "With your custom service provider"
5. Enter Your DoH Endpoint / Endpoint DoH خود را وارد کنید
   • Enter your worker URL: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use the live demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
   • Click Save
6. Done! / تمام شد!
   • Your DNS queries are now encrypted and secure

For faster access, you can directly navigate to Chrome's security settings:

1. Open Chrome / Chrome را باز کنید
2. Type in address bar / در نوار آدرس تایپ کنید:

   chrome://settings/security
   

3. Scroll to "Advanced" section / به بخش "Advanced" اسکرول کنید
4. Enable "Use secure DNS" / "Use secure DNS" را فعال کنید
5. Select "With your custom service provider" / "With your custom service provider" را انتخاب کنید
6. Enter your endpoint:
   • Your worker: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
7. Click Save / Save را کلیک کنید

1. Open Firefox / Firefox را باز کنید
2. Go to Settings / به Settings بروید
   • Click the three lines (☰) in the top right corner
   • Select Settings (or Preferences on Mac)
3. Navigate to Network Settings / به Network Settings بروید
   • Scroll down and click Settings button under "Network Settings"
4. Enable DNS over HTTPS / DNS over HTTPS را فعال کنید
   • Check "Enable DNS over HTTPS"
   • Select "Custom provider" from dropdown
   • Enter your endpoint: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
5. Click OK / OK را کلیک کنید

1. Open Firefox / Firefox را باز کنید
2. Go to Settings / به Settings بروید
   • Tap the three dots (⋮) in the bottom right
   • Select Settings
3. Navigate to Privacy and Security / به Privacy and Security بروید
   • Tap Privacy and Security
   • Scroll to "DNS over HTTPS"
4. Enable and Configure / فعال و پیکربندی کنید
   • Toggle "DNS over HTTPS" ON
   • Select "Custom"
   • Enter your endpoint: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
5. Save / ذخیره کنید

1. Open Opera / Opera را باز کنید
2. Go to Settings / به Settings بروید
   • Click the Opera logo in the top left
   • Select Settings (or press Alt+P)
3. Navigate to Advanced / به Advanced بروید
   • Click Advanced in the left sidebar
   • Click Privacy & security
4. Enable Secure DNS / Secure DNS را فعال کنید
   • Scroll to "Use DNS-over-HTTPS instead of the system DNS"
   • Toggle it ON
   • Select "Custom"
   • Enter your endpoint: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
5. Save / ذخیره کنید

1. Open Opera / Opera را باز کنید
2. Go to Settings / به Settings بروید
   • Tap the Opera logo (O) in the bottom right
   • Tap Settings
3. Navigate to Privacy & Security / به Privacy & Security بروید
   • Tap Privacy & Security
   • Scroll to "DNS-over-HTTPS"
4. Enable and Configure / فعال و پیکربندی کنید
   • Toggle "Use DNS-over-HTTPS" ON
   • Select "Custom provider"
   • Enter your endpoint: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
5. Save / ذخیره کنید

1. Open Edge / Edge را باز کنید
2. Go to Settings / به Settings بروید
   • Click the three dots (⋯) in the top right corner
   • Select Settings
3. Navigate to Privacy, search, and services / به Privacy, search, and services بروید
   • Click Privacy, search, and services in the left sidebar
   • Scroll to "Security" section
4. Enable Secure DNS / Secure DNS را فعال کنید
   • Find "Use secure DNS to specify how to lookup the network address for websites"
   • Toggle it ON
   • Select "Choose a service provider"
   • Click "Enter custom provider"
   • Enter your endpoint: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or use demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
5. Save / ذخیره کنید

Method 1: Private DNS (Android 9+)

1. Open Settings / Settings را باز کنید
2. Go to Network & Internet / به Network & Internet بروید
   • Tap Network & Internet
   • Tap Advanced
   • Tap Private DNS
3. Configure Private DNS / Private DNS را پیکربندی کنید
   • Select "Private DNS provider hostname"
   • Enter your worker hostname: your-worker-name.your-subdomain.workers.dev
   • Or use demo: darkcodeit.darkcodeit.workers.dev
   • Tap Save
4. Done! / تمام شد!

Note: Android uses the hostname, not the full URL. The system will automatically use the DoH endpoint.

Method 2: Using a DNS App

1. Install a DoH client app from Google Play Store:
   • "1.1.1.1" by Cloudflare
   • "DNS Over HTTPS" by Quad9
   • Or any DoH client app
2. Configure the app with your endpoint:
   • Your worker: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or demo: https://darkcodeit.darkcodeit.workers.dev/dns-query

Using a DNS App:

1. Install a DoH client app from App Store:
   • "1.1.1.1" by Cloudflare
   • "DNS Over HTTPS" by Quad9
   • Or any DoH client app
2. Configure the app with your endpoint:
   • Your worker: https://your-worker-name.your-subdomain.workers.dev/dns-query
   • Or demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
3. Enable VPN profile (the app will create a VPN profile for DNS)

Note: iOS doesn't have native DoH support in Settings, so you need to use a third-party app.

Method 1: Using Settings

1. Open Settings / Settings را باز کنید
   • Press Windows + I
2. Go to Network & Internet / به Network & Internet بروید
   • Click Network & Internet
   • Click Wi-Fi or Ethernet
   • Click your network connection
3. Configure DNS / DNS را پیکربندی کنید
   • Scroll to "DNS server assignment"
   • Click "Edit"
   • Select "Manual"
   • Turn ON "IPv4"
   • For Preferred DNS, enter: 1.1.1.1 (or any DNS server)
   • For Preferred DNS encryption, select "Encrypted only (DNS over HTTPS)"
   • For DNS over HTTPS template, enter your endpoint:
     • Your worker: https://your-worker-name.your-subdomain.workers.dev/dns-query
     • Or demo: https://darkcodeit.darkcodeit.workers.dev/dns-query
   • Click Save

Method 2: Using Command Prompt (Advanced)

1. Open Command Prompt as Administrator / Command Prompt را به عنوان Administrator باز کنید
2. Run the following commands / دستورات زیر را اجرا کنید:

# Set DNS over HTTPS
# Replace with your worker hostname and endpoint
netsh dns add encryption server=your-worker-name.your-subdomain.workers.dev dohtemplate=https://your-worker-name.your-subdomain.workers.dev/dns-query

# Or use the demo endpoint
netsh dns add encryption server=darkcodeit.darkcodeit.workers.dev dohtemplate=https://darkcodeit.darkcodeit.workers.dev/dns-query

Using a DNS App or Browser:

Windows 10 doesn't have native DoH support in Settings. Use one of these methods:

1. Use Chrome/Edge with the browser settings (see Chrome/Edge instructions above)
2. Use a DNS app like "1.1.1.1" by Cloudflare
3. Use PowerShell (requires Windows 11 build or Windows Server 2022)

Method 1: Using System Settings (macOS Ventura+)

1. Open System Settings / System Settings را باز کنید
2. Go to Network / به Network بروید
   • Click Network
   • Select your network connection (Wi-Fi or Ethernet)
   • Click Details
3. Configure DNS / DNS را پیکربندی کنید
   • Click DNS
   • Click "+" to add a DNS server
   • Enter: 1.1.1.1 (or any DNS server)
   • For DoH, you'll need to use a third-party app or browser settings

Method 2: Using Terminal (Advanced)

1. Open Terminal / Terminal را باز کنید
2. Install a DoH client like cloudflared:

brew install cloudflare/cloudflare/cloudflared

3. Configure cloudflared to use your DoH endpoint

Method 1: Using systemd-resolved (Ubuntu 20.04+)

1. Open Terminal / Terminal را باز کنید
2. Edit resolved.conf:

sudo nano /etc/systemd/resolved.conf

3. Add the following lines:

[Resolve]
DNS=1.1.1.1
DNSOverTLS=yes
DNSOverHTTPS=yes
# Replace with your worker endpoint
DoHServer=https://your-worker-name.your-subdomain.workers.dev/dns-query
# Or use the demo endpoint
# DoHServer=https://darkcodeit.darkcodeit.workers.dev/dns-query

4. Restart systemd-resolved:

sudo systemctl restart systemd-resolved

Method 2: Using a DNS App

1. Install a DoH client:

# For Ubuntu/Debian
sudo apt install cloudflared

# For Fedora
sudo dnf install cloudflared

# For Arch Linux
sudo pacman -S cloudflared

2. Configure cloudflared to use your DoH endpoint

1. Visit: https://1.1.1.1/help
2. Check "Using DNS over HTTPS (DoH)" - should show "Yes"
3. Check "Using DNS over TLS (DoT)" - may show "No" (that's okay)
4. Your DNS provider should show your custom endpoint

1. Visit: https://www.dnsleaktest.com
2. Run a standard test
3. Check the results - you should see DNS queries going through your endpoint

• English
• فارسی

• 🚀 High Performance: Leverages Cloudflare's global edge network for minimal latency
• 🔄 Multi-Provider Support: Distributes requests across 8 different DNS providers
• ⚖️ Weighted Load Balancing: Intelligent request distribution based on configurable weights
• 🛡️ Automatic Failover: Seamlessly switches to backup providers when primary ones fail
• 🎯 Ad-Blocking Support: Includes ad-blocking DNS providers (AdGuard, ControlD, Mullvad, NextDNS)
• 🌐 CORS Support: Full CORS support for web clients
• 💾 Caching: DNS responses cached for improved performance
• 🎨 Modern UI: Beautiful terminal-style interface with dark theme
• 📱 Responsive Design: Works perfectly on all devices

• 🚀 عملکرد بالا: استفاده از شبکه edge جهانی Cloudflare برای حداقل تأخیر
• 🔄 پشتیبانی از چندین ارائه‌دهنده: توزیع درخواست‌ها بین 8 ارائه‌دهنده DNS مختلف
• ⚖️ توزیع بار با وزن: توزیع هوشمند درخواست‌ها بر اساس وزن‌های قابل تنظیم
• 🛡️ Failover خودکار: سوئیچ خودکار به ارائه‌دهندگان پشتیبان در صورت مشکل
• 🎯 پشتیبانی از مسدودسازی تبلیغات: شامل ارائه‌دهندگان DNS مسدودکننده تبلیغات (AdGuard, ControlD, Mullvad, NextDNS)
• 🌐 پشتیبانی از CORS: پشتیبانی کامل از CORS برای کلاینت‌های وب
• 💾 Caching: cache پاسخ‌های DNS برای بهبود عملکرد
• 🎨 رابط کاربری مدرن: رابط کاربری زیبا با استایل ترمینال و تم تاریک
• 📱 طراحی واکنش‌گرا: کارکرد عالی در تمام دستگاه‌ها

• Node.js 18+ installed
• Cloudflare account
• Wrangler CLI installed globally (optional)

1. Clone the repository / کلون کردن مخزن:

git clone https://github.com/Darkcode-it/multi-provider-doh-proxy.git
cd multi-provider-doh-proxy

2. Install dependencies / نصب وابستگی‌ها:

npm install

3. Configure the worker / پیکربندی worker:

Edit wrangler.toml to configure your worker:

name = "doh-proxy-worker"
compatibility_date = "2024-01-01"
main = "src/index.js"

[vars]
CACHE_TTL = 300
PROVIDERS = [
    '{"name": "cloudflare", "url": "https://cloudflare-dns.com/dns-query", "weight": 20}',
    '{"name": "google", "url": "https://dns.google/dns-query", "weight": 15}',
    # ... more providers
]

4. Deploy to Cloudflare / Deploy در Cloudflare:

npm run deploy

Run the worker locally:

npm run dev

The worker will be available at http://localhost:8787

.
├── src/
│   └── index.js          # Main worker code
├── wrangler.toml         # Cloudflare Worker configuration
├── package.json          # Node.js dependencies
└── README.md            # This file

Your DoH endpoint will be available at:

https://your-worker-name.your-subdomain.workers.dev/dns-query

For GET requests, the DNS query must be base64url-encoded:

curl "https://your-worker.workers.dev/dns-query?dns=q80BAAABAAAAAAAAA3d3dwdleGFtcGxlA2NvbQAAAQAB"

For POST requests, send the DNS query as binary data:

curl -X POST \
  -H "Content-Type: application/dns-message" \
  --data-binary @query.dns \
  https://your-worker.workers.dev/dns-query

dig @your-worker.workers.dev example.com

You can use this endpoint in any DoH-compatible client:

1. Firefox: Settings → Network Settings → Enable DNS over HTTPS → Custom → Enter your endpoint URL
2. Chrome/Edge: Settings → Privacy and security → Security → Use secure DNS → Custom → Enter your endpoint URL
3. Opera: Settings → Advanced → Privacy & security → Use DNS-over-HTTPS → Custom → Enter your endpoint URL

The worker uses environment variables defined in wrangler.toml:

• CACHE_TTL: Cache time-to-live in seconds (default: 300)
• PROVIDERS: Array of JSON strings containing provider configuration

Each provider is configured with:

• name: Provider name (e.g., "cloudflare")
• url: DoH endpoint URL
• weight: Weight for load balancing (higher = more requests)

Example:

{
  "name": "cloudflare",
  "url": "https://cloudflare-dns.com/dns-query",
  "weight": 20
}

You can add custom DNS providers by modifying the PROVIDERS array in wrangler.toml:

PROVIDERS = [
    '{"name": "custom-provider", "url": "https://custom-dns.com/dns-query", "weight": 10}',
    # ... existing providers
]

The worker uses weighted random selection to distribute requests across providers. Providers with higher weights receive more requests.

If a primary provider fails, the worker automatically tries other providers in the list until one succeeds.

DNS responses are cached for the duration specified in CACHE_TTL to improve performance and reduce upstream requests.

All responses include CORS headers, allowing the endpoint to be used from web browsers:

Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Headers: Content-Type, Accept

• Latency: < 50ms average (thanks to Cloudflare's edge network)
• Uptime: 99.9%+ (with automatic failover)
• Throughput: Handles thousands of requests per second
• Cache Hit Rate: ~70% (for common queries)

Query DNS using GET request with base64url-encoded query parameter.

Parameters:

• dns (required): Base64url-encoded DNS message

Example:

GET /dns-query?dns=q80BAAABAAAAAAAAA3d3dwdleGFtcGxlA2NvbQAAAQAB

Query DNS using POST request with binary DNS message in body.

Headers:

• Content-Type: application/dns-message
• Accept: application/dns-message

Body:

• Binary DNS message

Example:

POST /dns-query
Content-Type: application/dns-message

<binary-dns-message>

Landing page with information about the worker and usage examples.

Detailed explanation of DNS query encoding in DoH.

Solution: Check that all provider URLs are correct and accessible.

Solution:

• Check your Cloudflare Worker location
• Verify provider URLs are working
• Check cache configuration

Solution: CORS headers are automatically included. If you still see errors, check that you're using the correct endpoint URL.

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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

Darkcode-it

• GitHub: @Darkcode-it
• Telegram: @darkcodeit

• Cloudflare for providing the Workers platform
• All DNS providers for their free DoH services
• The open-source community for inspiration and support

• RFC 8484 - DNS Queries over HTTPS (DoH)
• Cloudflare Workers Documentation
• DNS-over-HTTPS

• 🌐 Live Demo: https://darkcodeit.darkcodeit.workers.dev
• 📦 GitHub Repository: https://github.com/Darkcode-it/multi-provider-doh-proxy
• 💬 Telegram: https://t.me/darkcodeit