The Open Observatory of Network Interference (OONI) is a free software project under The Tor Project which aims to empower decentralized efforts in increasing transparency of internet censorship around the world.
We develop free and open source software, called OONI Probe, that you can run to measure:
Blocking of websites;
Blocking of instant messaging apps (WhatsApp, Facebook Messenger and Telegram);
Blocking of censorship circumvention tools (such as Tor);
Presence of systems (middleboxes) in your network that might be responsible for censorship and/or surveillance;
Speed and performance of your network.
Other platforms to install on: