Measure internet censorship. Contribute to the world's largest open dataset on internet censorship Download OONI Probe Command line Linux & mac OSWhat OONI Probe measures Discover which websites are blocked Run OONI Probe to check which websites are blocked in your country. Learn how fast your network is Measure the speed and performance of your network with the NDT test, developed in collaboration with M-Lab.

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.