DNS Leak Test
This test will check if your DNS requests are being leaked outside your VPN tunnel.
Browser Limitation
For security, browsers cannot directly access DNS server information. This test analyzes your IP location and ISP. For comprehensive DNS leak testing, use dedicated desktop software or your VPN provider's leak test.
What is a DNS Leak?
A DNS leak occurs when your DNS queries are sent outside your encrypted VPN tunnel, potentially revealing:
- Your real location
- Websites you visit
- Your ISP identity
How to Fix DNS Leaks
- 1.Use VPN with built-in DNS leak protection
- 2.Configure custom DNS servers (1.1.1.1, 8.8.8.8)
- 3.Enable DNS leak protection in VPN settings
- 4.Use your VPN provider's DNS servers
- 5.Disable IPv6 if not supported by VPN
Secure DNS Servers
Privacy Protected
This test runs in your browser. Your test results are not stored or logged anywhere.
About DNS Leak Test
Free DNS Leak Test - Check Your VPN Privacy
Test if your VPN is leaking DNS requests that could expose your real location and browsing activity. Our free DNS leak test tool helps you verify that your VPN is working correctly and your online privacy is protected.
What is a DNS Leak?
A DNS (Domain Name System) leak occurs when your DNS requests bypass your VPN's encrypted tunnel and are sent through your ISP's DNS servers instead. This means that even though your internet traffic is encrypted by your VPN, your DNS queries reveal which websites you're visiting, your real location, and your ISP identity to anyone monitoring your connection.
Why DNS Leaks Are Dangerous:
- • Privacy Breach: Your ISP can see which websites you visit
- • Location Exposure: Your real location is revealed despite using VPN
- • Tracking: Third parties can track your online activities
- • Censorship: Your internet activity can be monitored and blocked
- • Security Risk: Potential for man-in-the-middle attacks
How DNS Leak Test Works
- Detects Your IP: Identifies your current public IP address and location
- Queries DNS Servers: Makes DNS requests to identify which DNS servers are resolving your queries
- Analyzes Results: Compares DNS server locations with your VPN location
- Identifies Leaks: Detects if DNS requests are going outside your VPN tunnel
- Provides Recommendations: Suggests fixes if leaks are detected
Common Causes of DNS Leaks
VPN Configuration Issues
- • No DNS leak protection enabled
- • Improper VPN setup
- • Split tunneling misconfigured
- • VPN software bugs
System Settings
- • Manual DNS servers configured
- • IPv6 enabled (not supported by VPN)
- • Network adapter priority issues
- • Operating system DNS cache
Network Environment
- • Router DNS settings override VPN
- • ISP transparent DNS proxy
- • Network-level DNS filtering
- • Public WiFi redirects
VPN Provider Limitations
- • No custom DNS servers
- • Poor leak protection
- • Server-side issues
- • Limited protocol support
How to Fix DNS Leaks
✓ Quick Fixes
- 1. Enable DNS Leak Protection: Most VPN apps have this option in settings
- 2. Use VPN's DNS Servers: Configure your VPN to use its own DNS servers
- 3. Disable IPv6: If your VPN doesn't support IPv6, disable it
- 4. Flush DNS Cache: Clear your DNS cache after connecting to VPN
- 5. Reconnect VPN: Disconnect and reconnect to establish a clean tunnel
📝 Advanced Fixes
- Configure Custom DNS: Set DNS to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google)
- Use VPN Kill Switch: Blocks internet if VPN connection drops
- Change VPN Protocol: Try OpenVPN, WireGuard, or IKEv2
- Router-Level VPN: Set up VPN on your router for device-wide protection
- Firewall Rules: Block DNS traffic outside VPN tunnel
Best DNS Servers for Privacy
Cloudflare DNS (1.1.1.1)
Primary: 1.1.1.1 • Secondary: 1.0.0.1
Fast, private, and free. Claims not to log your IP address.
Google Public DNS (8.8.8.8)
Primary: 8.8.8.8 • Secondary: 8.8.4.4
Reliable and fast, backed by Google's infrastructure.
Quad9 (9.9.9.9)
Primary: 9.9.9.9 • Secondary: 149.112.112.112
Security-focused, blocks malicious domains automatically.
OpenDNS (208.67.222.222)
Primary: 208.67.222.222 • Secondary: 208.67.220.220
Customizable filtering, parental controls available.
When to Test for DNS Leaks
- After installing or updating your VPN software
- When connecting to a new VPN server
- After changing VPN or network settings
- On public WiFi networks
- When switching between networks (WiFi to mobile data)
- Periodically to ensure ongoing protection
- If you notice unusual connection behavior
🔐 Protect Your Privacy
Regular DNS leak testing is essential for maintaining your online privacy. Even premium VPNs can have DNS leaks due to configuration issues or network conditions. Test your connection regularly to ensure your DNS requests aren't exposing your browsing activity.