Open Observatory of Network Interference

Global community measuring Internet censorship since 2012

Test the blocking of websites and apps. Measure the speed and performance of your network.

Install OONI Probe

Testing methodologies

OONI Probe Phone App
OONI Explorer logo

Explore the world's largest open dataset on internet censorship. Millions of measurements collected from more than 200 countries since 2012.

Explore OONI Data

Frequently Asked Questions

OONI Glossary

Get Involved

Join us on Slack or IRC to participate in community discussions. Sign-up for the ooni-talk mailing list to receive updates and discuss all things related to the OONI-verse.

All OONI source code is available on GitHub, where we also document issues and future plans.

We also have a growing list of OONI ambassadors through our partnership program.

Current OONI Partners


Contact the OONI team by sending an email to Encrypted emails can be sent using the following PGP key:

Key ID: 6B2943F00CB177B7
Fingerprint: 4C15 DDA9 96C6 C0CF 48BD 3309 6B29 43F0 0CB1 77B7