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VPN Tunnel Security Simulator

Interactive 3D simulation of a VPN tunnel: packets get encrypted and re-addressed under a virtual IP as they cross from client to VPN server, hiding the real IP from watchers on the network. Toggle a DNS-leak attack to see unencrypted DNS lookups escape the tunnel and expose browsing destinations to an eavesdropper outside it.

Cybersecurity3DModerate60 FPS

A VPN protects you two ways at once: it encrypts your packets so anyone watching the wire can't read them, and it re-addresses them under the VPN server's IP so the destination never learns your real one. This simulation visualizes both mechanisms as packets travel from your device through a VPN server to a destination, and lets you trigger a DNS-leak attack — a realistic failure mode where DNS lookups escape the tunnel in plaintext, exposing your real IP and browsing destinations even while your main traffic stays encrypted.

⚙ Under the hood

Three.jsVPNencryptionnetworkingDNS leakcybersecurity

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install