OONI Probe

Open Observatory of Network Interference ❘ Freeware ❘
Android iOS

OONI Probe: Your Gateway to Understanding Internet Censorship

Elena Angelini

03/31/2025

OONI Probe empowers users to investigate and report on internet censorship in their region with an easy-to-use app and robust community support.

Are you experiencing website and social media app blockages? Is your network unusually slow? OONI Probe can provide you with the answers you need. This powerful app allows you to investigate website and instant messaging app blocks, measure network speed and performance, and identify potential censorship and surveillance systems in your network.

OONI Probe is developed by the Open Observatory of Network Interference (OONI), a free software project under The Tor Project that is dedicated to exposing internet censorship worldwide. Since its establishment in 2012, OONI's global community has collected millions of network measurements from over 200 countries, shining a light on numerous cases of network interference.

Uncover proof of internet censorship

With OONI Probe, you can assess the presence and methods of website and instant messaging app blockages. The data collected through network measurements can serve as compelling evidence of internet censorship.

Identify censorship and surveillance systems

OONI Probe tests are specifically designed to detect systems known as middleboxes that may be responsible for censorship and surveillance activities.

Analyze network speed and performance

By utilizing OONI's implementation of the Network Diagnostic Test (NDT), you can accurately measure the speed and performance of your network. Additionally, the Dynamic Adaptive Streaming over HTTP (DASH) test allows you to evaluate video streaming performance.

Transparent publishing of data

OONI believes in the power of open data, which enables third parties to verify OONI's findings, conduct independent studies, and address other research inquiries. The open publication of OONI data also contributes to greater transparency regarding internet censorship worldwide. You can browse and download OONI data here.

Open source software

All OONI Probe tests, including the NDT and DASH implementations, are based on free and open source software. You can find OONI software projects on GitHub here. To delve into the inner workings of OONI Probe tests, learn more here.

To stay updated with the latest news from the OONI-verse, follow us on Twitter here.

Overview

OONI Probe is a Freeware software in the category Security developed by Open Observatory of Network Interference.

The latest version of OONI Probe is currently unknown. It was initially added to our database on 01/26/2023.

OONI Probe runs on the following operating systems: Android/iOS.

OONI Probe has not been rated by our users yet.

Pros

User-friendly interface that makes it easy to understand and use for people of all technical abilities.
Helps detect internet censorship and network interference in real-time across various locations.
Provides an open-source platform, allowing for community contributions and transparency in the data collected.
Offers multilingual support, making it accessible to a global audience.
Utilizes mobile and desktop applications, increasing its accessibility across different devices.
Contributes to a larger understanding of internet freedom by sharing aggregated data with researchers and organizations.

Cons

Dependent on user participation for data collection, which may lead to limited information in less populated areas.
Results may vary due to different factors such as internet provider practices and user connection types.
Requires regular updates and maintenance, which could be a barrier for users who are not tech-savvy.
The reliance on community data can lead to inconsistent data quality and reporting standards across different regions.
Limited support for certain platforms may exclude users of those specific systems.

FAQ

What is OONI Probe?

OONI Probe is a free and open-source software designed to measure internet censorship and network interference.

How does OONI Probe work?

OONI Probe collects network measurements from around the world through various tests to detect censorship and surveillance.

Who can use OONI Probe?

Anyone can download and use OONI Probe to contribute to a better understanding of internet censorship globally.

Is OONI Probe legal to use?

Yes, OONI Probe is legal to use as it helps promote transparency and accountability with respect to internet censorship.

How can I contribute to OONI Probe's research?

You can run OONI Probe tests on your network and share the results with the OONI community to contribute to their research efforts.

Is OONI Probe available on mobile devices?

Yes, OONI Probe is available for both Android and iOS devices for easy measurement of censorship on mobile networks.

What types of tests does OONI Probe perform?

OONI Probe conducts various tests such as web connectivity, HTTP invalid request, DNS tampering, and more to detect censorship techniques.

Can I view and analyze the data collected by OONI Probe?

Yes, you can access the data collected by OONI Probe through their web interface or API for further analysis and research.

Is there a community around OONI Probe?

Yes, there is an active community of researchers, developers, and advocates who collaborate to advance internet freedom using OONI Probe data.

Can I trust the results produced by OONI Probe?

OONI Probe follows strict methodologies and uses cryptographic verification to ensure the accuracy and integrity of the measurement results.

Elena Angelini

I'm Elena, your go-to software reviewer at UpdateStar and tech enthusiast. Whether you're a user seeking the latest software titles or software news I've got you covered. When I'm not diving into the latest software, you can find me exploring nature trails, camping under the stars, or competing in online multiplayer games. My reviews are designed to be fun, engaging, and packed with all the details you need to make informed decisions.

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