Are websites and social media apps blocked? Is your network unusually slow? Run OONI Probe to find out!

With this app, you will examine the blocking of websites and instant messaging apps, measure your network's speed and performance, and check whether systems that could be responsible for censorship and surveillance are in your network.

OONI Probe is developed by the Open Observatory of Network Interference (OONI), a free software project (under The Tor Project) that aims to uncover internet censorship around the world.

Since 2012, OONI’s global community has collected millions of network measurements from more than 200 countries, shedding light on multiple cases of network interference.

Collect evidence of internet censorship

You can check whether and how websites and instant messaging apps are blocked. The network measurement data you will collect may serve as evidence of internet censorship.

Detect systems responsible for censorship and surveillance

OONI Probe tests are also designed to uncover the presence of systems (middleboxes) that could be responsible for censorship and surveillance.

Measure the speed and performance of your network

You can measure the speed and performance of your network by running OONI's implementation of the Network Diagnostic Test (NDT). You can also measure video streaming performance with the Dynamic Adaptive Streaming over HTTP (DASH) test.

Open data

OONI publishes network measurement data because open data allows third parties to verify OONI findings, conduct independent studies, and answer other research questions. Openly publishing OONI data also helps increase transparency of internet censorship around the world. You can explore and download OONI data here: https://ooni.io/data/

Free software

All OONI Probe tests (including our NDT and DASH implementations), are based on free and open source software. You can find OONI software projects on GitHub: https://github.com/ooni. Curious to learn how OONI Probe tests work? Learn more: https://ooni.io/nettest/

To receive updates from the OONI-verse, follow us on Twitter: https://twitter.com/OpenObservatory

OONI Probe is an open-source software suite designed to measure the quality, openness, and censorship of the Internet. It is developed by the Open Observatory of Network Interference (OONI), a non-profit organization dedicated to promoting Internet freedom and openness. OONI Probe is available for Windows, macOS, Linux, and Android devices.

Features

OONI Probe offers a range of features for measuring Internet connectivity and performance, including:

* Speed tests: Measure download and upload speeds, latency, and packet loss.

* Network diagnostics: Test connectivity to specific websites and services, such as social media platforms and messaging apps.

* Censorship detection: Identify blocked websites and content, and analyze censorship techniques.

* Website fingerprinting: Collect information about website characteristics, such as server type and location, to identify potential censorship or surveillance.

* DNS monitoring: Track changes to DNS records, which can indicate censorship or manipulation.

How it Works

OONI Probe uses a variety of techniques to measure Internet connectivity and performance. It sends test packets to servers around the world to measure speed and latency. It also uses a variety of probes to test for censorship and website fingerprinting.

Data Collection and Analysis

OONI Probe collects data on Internet connectivity and performance, which is then anonymized and aggregated. This data is used to create reports and visualizations that provide insights into the state of the Internet. OONI's data is used by researchers, journalists, and policymakers to identify and address Internet censorship and other threats to Internet freedom.

Use Cases

OONI Probe is used by a wide range of individuals and organizations, including:

* Researchers: To study Internet censorship and other threats to Internet freedom.

* Journalists: To investigate and report on Internet censorship and other digital rights issues.

* Policymakers: To develop policies that protect Internet freedom and openness.

* Activists: To monitor Internet censorship and advocate for digital rights.

* Individuals: To test their own Internet connectivity and performance, and to identify potential censorship or surveillance.

Impact

OONI Probe has had a significant impact on the fight for Internet freedom and openness. Its data has been used to identify and document censorship in countries around the world. It has also been used to develop policies that protect Internet freedom and openness. OONI Probe is an essential tool for anyone who is concerned about the future of the Internet.