What is OONI?

The Open Observatory of Network Interference (OONI) is a free software project under the Tor Project which aims to detect internet censorship, traffic manipulation and signs of surveillance around the world through the collection and processing of network measurements. Since late 2012, OONI has collected millions of network measurements across more than 90 countries around the world, shedding light on multiple cases of network interference.

OONI is based on various free software tests which are designed to measure the following:

Prior to running OONI's software, please read our Data Policy and documentation about potential risks.


To contact the OONI team send an email to contact@openobservatory.org. Encrypted emails can be sent using the following PGP key:

pub 4096R/6B2943F00CB177B7 2016-03-23 [expires: 2018-03-26]
Key fingerprint = 4C15 DDA9 96C6 C0CF 48BD 3309 6B29 43F0 0CB1 77B7
uid [ultimate] OONI - Open Observatory of Network Interference
sub 4096R/8EBD2087374399AB 2016-03-23 [expires: 2018-03-26]

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