ℹ️ This tool simulates DNS leak detection locally. In production, this would query multiple DNS servers worldwide to check for leaks outside your VPN tunnel.
How DNS Leaks Happen
A DNS leak occurs when DNS queries bypass your VPN tunnel and are sent to your ISP's DNS servers. This reveals your browsing activity despite using a VPN. Common causes include misconfigured VPN split tunneling, IPv6 leaks, and WebRTC leaks.
Protection Tips
✅ Use encrypted DNS (DoH/DoT)
✅ Disable IPv6 on your VPN interface
✅ Enable VPN kill switch
✅ Use DNS servers provided by your VPN
✅ Block WebRTC in your browser