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
A Legal and Technical Analysis of Internet Censorship in France
6 Mar 2025
Censorship Chronicles: The systematic suppression of independent media in Russia
9 Dec 2024
iMAP 2024: State of Internet Censorship in 9 countries
23 Oct 2024
Russia blocked OONI Explorer, a large open dataset on Internet censorship
25 Sep 2024
Kazakhstan: TLS MITM attacks and blocking of news media, human rights, and circumvention tool sites
19 Sep 2024
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
Launch: New OONI Explorer thematic censorship pages
2 Apr 2025
Requirements for OONI’s anonymous credentials system
24 Mar 2025
Launch: New OONI Probe multiplatform app
4 Mar 2025
Probe Security Without Identification
20 Feb 2025
Year in Review: OONI in 2024
6 Feb 2025
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 contact@openobservatory.org. Encrypted emails can be sent using the following PGP key:
Key ID: 6B2943F00CB177B7Fingerprint: 4C15 DDA9 96C6 C0CF 48BD 3309 6B29 43F0 0CB1 77B7
