Measure internet censorship

Contribute to the world's largest open dataset on internet censorship

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OONI Probe Desktop App Download Background Flourish
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Discover which websites are blocked

Run OONI Probe to check which websites are blocked in your country.

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Learn how fast your network is

Measure the speed and performance of your network with the NDT test, developed in collaboration with M-Lab.

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Check which apps are blocked

Test WhatsApp, Facebook Messenger, and Telegram to check if they are blocked. Run OONI Probe to check if circumvention tools work on your network.

Share evidence of internet censorship with the world

As soon as you run OONI Probe, your test results will automatically get published in near real-time. By running OONI Probe, you help increase transparency of internet censorship.

Explore OONI measurements from around the world >>
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