SYSTEM LOGS
Technical analysis, security research, and network utility documentation.
Access Level: Public
Best Browser for Privacy: 11 Private Browsers Compared
Best browser for privacy: Brave vs Firefox, Tor, Mullvad, DuckDuckGo, Safari, Chrome and more compared on trackers, fingerprint, IP address and built-in VPN.
VPN Test: How to Check If Your VPN Is Working and Not Leaking
A VPN test in five checks: confirm your VPN is on, run an IP leak test for DNS, WebRTC and IPv6, test the kill switch, and see why sites still detect a VPN.
VPN vs Proxy vs Tor: What Each One Hides, and From Whom
VPN vs proxy vs Tor, plus SOCKS5, Shadowsocks, SSH tunnels and Private Relay: what each hides from your Wi-Fi, your ISP and websites, and which to use.
Riot Vanguard and Kernel-Level Anti-Cheat: What It Sees, Is It Safe, and How DMA Cheats Work
Riot Vanguard is kernel-level anti-cheat. What it sees on your PC, whether it is safe, why games require Secure Boot and TPM 2.0, and how DMA cheats work.
Browser Fingerprinting: What Is a Browser Fingerprint and How Does It Work?
What is a browser fingerprint? How browser fingerprinting works, what sites use it for, how to test your browser, and how Firefox, Brave and Safari reduce it.
The Fake Browser: How Sites Catch Bots and Anti-Detect Tools
A real person, a robot, or a mask? How sites catch bots, headless browsers, and anti-detect tools, and how to check your own browser.
The Sound of You: How Audio and Voice Fingerprinting Track a Browser With No Cookies
Your browser hums and keeps a list of voices you never hear, and both quietly identify you. How audio and speech-voice fingerprinting work, why they survive a VPN, and how to check your own.
Passive OS Fingerprinting: Your Operating System Talks Before Your Browser Does
Passive OS fingerprinting reads your operating system from the first TCP packet. How p0f and JA4T work, why proxies and VPNs show up, and how to check yours.
BIG UPDATE: One Index Became Two, Because One Was Lying to You
For months your privacy and your trust shared one number. That was a lie. Here is why I split packet.guru into two scores and what the new cards now see.
Encrypted Client Hello: The Last Plaintext Crack in TLS 1.3 Privacy
ECH finally closes the SNI leak in TLS 1.3. A practical guide to RFC 9849, how Encrypted Client Hello works, and how to actually enable it in Firefox, Chrome, and beyond.
One scan shows what your connection and browser give away.
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