Proxy Checker & SOCKS5 WebRTC / DNS / UDP QUIC Leak Test
Audit SOCKS5, HTTP, or mobile proxies for IP address leaks, WebRTC vulnerabilities, DNS routing pathway leaks, and SOCKS5 UDP / HTTP/3 QUIC protocol support on a single page.
Browser Leak & Connection Audit
Audit your active connection's IP address, DNS route, WebGL/Canvas fingerprint, QUIC capabilities, and passive TCP stack.
Stealth Audit & Leak Detection Knowledge Base
Learn how target sites identify proxy connections and why traditional software-only proxies fail key privacy checkpoints. Our diagnostic suite audits the exact criteria used by modern anti-bot algorithms.
🛡️ WebRTC IP Leak Check
WebRTC (Web Real-Time Communication) uses PeerConnection APIs to establish direct media tunnels. By querying this API using JavaScript, websites can discover your real Local LAN IP (e.g., 192.168.1.X) and real public IP, completely bypassing browser proxy configurations.
🔍 DNS Leak & Pathway Routing
A DNS leak occurs when domain name translation requests are routed outside the proxy tunnel, hitting your local ISP's DNS resolvers instead of the proxy's remote resolvers. If your proxy IP is in the US but your DNS requests resolve in Vietnam, target sites flag the connection instantly.
🏷️ Passive TCP/IP Stack Fingerprint
Websites analyze incoming TCP packet parameters like TTL (Time to Live), Window Size, and MTU. If your browser User-Agent claims to be Windows but your TCP packet profile exhibits a Linux/Android signature, passive tools (like p0f) flag the connection as an automated bot or proxy.
🖥️ Hardware & Canvas Fingerprinting
Modern sites generate unique hashes from Canvas 2D image drawing, WebGL GPU rendering, and AudioContext latencies. Because these are linked directly to your physical graphics card and processor, changing your IP is not enough; you must spoof these hardware profiles to remain undetected.
⚡ Why XProxy Hardware Eliminates All Leak Vectors
Software-only proxy solutions (like data center or cloud VPS proxies) route traffic using virtual interfaces that trigger security alarms. XProxy combines enterprise-grade cellular hardware and custom-built routing firmware to guarantee 100% clean mobile exit signatures.
Frequently Asked Questions
A WebRTC leak occurs when your web browser exposes your real public or local (LAN) IP addresses through WebRTC's PeerConnection API, bypassing active proxies or VPNs. Websites query this API via JavaScript to detect your real location.
A DNS leak happens when your browser routes DNS translation queries outside your proxy tunnel, exposing your local ISP's DNS servers. You can prevent it by ensuring your proxy resolver resolves DNS queries on the proxy server itself (Remote DNS Resolution).
XProxy utilizes hardware-based routing, resolving DNS queries directly on the cellular module or remote proxy server to prevent leaks. For WebRTC, utilizing high-quality proxy networks or pairing XProxy with anti-detect browsers ensures local IPs are masked under standard mDNS parameters.
Web servers analyze lower-level network packets (TTL, Window Size, MTU) using passive fingerprinting engines (like p0f). If your browser claims to be Windows but your network packets exhibit Linux or Android characteristics, it triggers a high-risk security alert. Matching them ensures 100% natural device appearance.
Anti-detect browsers spoof Canvas, WebGL, and Audio signatures in the frontend browser environment, while XProxy matches the passive TCP stack parameters in the network layer, providing a complete 100% stealth profile.
SOCKS5 proxies must support UDP association to route DNS, WebRTC, and HTTP/3 QUIC packets. If your proxy blocks UDP, browser connections fall back to TCP or bypass the proxy tunnel entirely, exposing your local IP.
Each USB modem or dongle connected to your XProxy server generates one active mobile proxy. A single XProxy XH22 server box can support up to 20+ modems simultaneously, allowing you to generate and control 20+ independent rotating mobile proxy networks.