Best DNS Shield — Leak Detector Alternatives in 2026

About DNS Shield — Leak Detector

Most VPN users assume they're protected. DNS Leak Test Shield tells you if they actually are. DNS leaks, WebRTC exposure, and IPv6 vulnerabilities silently bypass VPN tunnels every day — and most people never find out. Your VPN may show a green connected status while your real IP address and DNS activity are fully visible to your ISP, advertisers, and anyone monitoring your connection. DNS Shield runs a complete privacy leak scan in seconds and shows you exactly what the internet can see about you. ━━━ WHAT DNS SHIELD CHECKS ━━━ 🔍 DNS Leak Detection Queries multiple DNS resolvers via Cloudflare DoH and Google DoH to check whether your DNS requests are being handled by your VPN or silently routed through your ISP. An ISP-handled DNS server means your browsing activity is visible even with a VPN active. 🌐 WebRTC IP Leak Detection Chrome's built-in WebRTC API can expose your real IP address even when a VPN is connected. DNS Shield probes STUN servers to detect any IP addresses leaking outside your VPN tunnel — a vulnerability most VPN apps cannot prevent on their own. 🔢 IPv6 Leak Detection Many VPNs only tunnel IPv4 traffic, leaving IPv6 completely unprotected.