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Straightforward guides to privacy, censorship, DPI, VPN protocols and the technology that keeps a connection open. No jargon for its own sake.

Level 0 / Privacy Fundamentals
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Privacy vs Anonymity

Privacy Fundamentals ↗

Latest from the Atlas

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A judge looking serious, and a speaking balloon on a paper, on the ballon a smartphone with a prohibited symbol
01

Internet Shutdowns and the Law

When governments order the internet off: legal justifications, international law, accountability, and why no VPN can restore a full shutdown.

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Hands holding a tablet showing a map, and a shield with the letters VPN on the shield. Above all there is a red circle with the word BANNED.
02

VPN Bans and Regulation: What the Law Actually Does

How laws restrict VPNs without always banning them outright: blocking obligations, app store pressure, licensing, and the gap between regulation and technical blocking.

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Chinese national flag
03

Internet Censorship in China

Inside China's Great Firewall in 2026: DNS poisoning, SNI and QUIC filtering, VPN crackdowns, and what still gets through.

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Iranian national flag
04

Internet Censorship in Iran

Inside Iran's internet controls in 2026: national shutdowns, DNS and SNI filtering, throttling, tiered access, and what still gets through.

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Russian national flag
05

Internet Censorship in Russia

How Russia filters the internet in 2026: TSPU inspection, VPN blocking, mobile whitelist shutdowns, and what still gets through.

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Hysteria logo, written with a stylized H letter design formed by two lightning bolts
06

What Is Hysteria2?

Hysteria2 is a QUIC-based proxy built for lossy links. What its congestion control, HTTP/3 masquerade and obfuscation buy, and where each one stops.

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Guides to privacy, censorship and censorship-resistant networking. Written by people who build and break tunnels for a living.

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