Internet Censorship in China
Inside China's Great Firewall in 2026: DNS poisoning, SNI and QUIC filtering, VPN crackdowns, and what still gets through.
Topic
SNI filtering
3 articles in the Atlas on sni filtering - Internet Censorship in China; Internet Censorship in Iran. Inside China's Great Firewall in 2026: DNS poisoning, SNI and QUIC…
3 articles
Part of Censorship, DPI & Network Freedom · Search this topic
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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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What Is Deep Packet Inspection?
DPI reads the shape of your traffic, not just where it goes. How it works, what it can classify, and why encrypted tunnels still give themselves away.