Test the blocking of websites and apps. Measure the speed and performance of your network.
Research
A Legal and Technical Analysis of Internet Censorship in France
Censorship Chronicles: The systematic suppression of independent media in Russia
iMAP 2024: State of Internet Censorship in 9 countries
Russia blocked OONI Explorer, a large open dataset on Internet censorship
Kazakhstan: TLS MITM attacks and blocking of news media, human rights, and circumvention tool sites
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Explore the world's largest open dataset on internet censorship. Millions of measurements collected from more than 200 countries since 2012.