Online Censorship and Internet Freedom
How governments around the world restrict internet access and content, and the technologies and legal frameworks that resist censorship.
The Architecture of Online Censorship
Governments employ an increasingly sophisticated array of tools to control what their citizens see and say online. China's Great Firewall is the most comprehensive system, combining DNS filtering, URL blocking, deep packet inspection, and keyword censorship to block foreign websites and filter domestic content. Thousands of human censors and AI systems work in tandem to scrub sensitive topics from social media in real time.
Other approaches are more targeted. Russia's Sovereign Internet Law (2019) gave the government the ability to isolate the Russian internet from the global web, throttle platforms like Twitter, and block VPNs. Iran and Myanmar impose complete internet shutdowns during protests. Turkey blocks Wikipedia, news sites, and social media platforms during sensitive political events. Even democratic countries engage in content regulation that critics call censorship: Germany's NetzDG law requires platforms to remove illegal content within 24 hours, and Australia and the UK have enacted laws requiring removal of 'online harms' with broad definitions.
