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
VPN blocking
5 articles in the Atlas on vpn blocking - Internet Censorship in China; Internet Censorship in Iran. Inside China's Great Firewall in 2026: DNS poisoning, SNI and QUIC…
5 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.
03
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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What Makes a VPN Resistant to Censorship?
Censorship resistance is a property of six layers, from the bytes on the wire to the cloud provider, the CDN, and the response to a probe. Protocol is one of them.
05
Why a VPN Can Work Today and Fail Tomorrow
A tunnel that worked yesterday can stop working with no change on your side. The documented record shows four distinct causes, and only one of them is the censor.