Learn and interpret
Privacy Guides
Zunavek guides explain browser fingerprinting, VPNs, leak checks, and online privacy, with practical steps for interpreting diagnostic results.
Fingerprinting
What Is Browser Fingerprinting?
Learn how websites identify you without cookies using canvas, WebGL, fonts, and dozens of other signals.
The Secret Handshake: A Beginner's Guide to TLS Fingerprinting & JA4
Learn how TLS handshake characteristics and JA4 signatures help classify connecting software, and why shared signatures do not uniquely identify a person.
TCP/IP Fingerprinting and OS Detection
Learn how your operating system can be identified from TCP/IP packet characteristics like TTL, window size, and MSS.
Privacy
How to Prevent DNS Leaks
Understand DNS leak scenarios, encrypted DNS protocols, VPN routing, platform-specific settings, and the limits of resolver tests.
WebRTC Leaks Explained
Understand ICE candidates, STUN, public IP exposure, browser controls, and how to compare direct and VPN connections.
Privacy-Focused Browser Settings
Step-by-step configuration guides for Chrome, Firefox, Safari, and Brave to maximize your browsing privacy.
HTTP Headers and Privacy
Learn what request headers reveal, how fingerprinting and cache tracking work, and why proxy-added headers need careful interpretation.
Complete Guide to Online Anonymity
From VPNs to Tor to browser hardening - a practical roadmap to reducing your digital footprint.
VPN
Security
How to Detect and Block Bot Traffic
A technical deep-dive into bot detection techniques: browser API checks, TLS analysis, and behavioral signals.
Email Authentication Guide: SPF, DKIM, DMARC, MTA-STS & BIMI
Learn how SPF, DKIM, DMARC, MTA-STS, TLS-RPT and BIMI work together to prevent spoofing, improve email trust and expose mail transport failures.