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.

<b>Collect evidence of internet censorship</b>

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.

<b>Detect systems responsible for censorship and surveillance</b>

OONI Probe tests are also designed to uncover the presence of systems

(middleboxes) that could be responsible for censorship and surveillance.

<b>Measure the speed and performance of your network</b>

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.

<b>Open data</b>

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/

<b>Free software</b>

All OONI Probe tests (including our NDT and DASH implementations), are based

on free and open source software. You can find OONI software projects

<a href="https://github.com/ooni">on Github</a>. Curious to learn how OONI Probe tests

work? Learn more <a href="https://ooni.io/nettest">here</a>.

To receive updates from the OONI-verse,

<a href="https://twitter.com/OpenObservatory">follow us on Twitter</a>

Disclaimer: Running OONI Probe might be against the terms of service of your ISP

or legally questionable in your country. By running OONI Probe, you will connect

to web services which might be banned. The OONI project will publish data

submitted by probes, possibly including your IP address or other identifying

information. In addition, your use of OONI Probe will be clear to anyone who has

access to your computer, and to anyone who can monitor your Internet connection

(such as your employer, ISP or government). Learn more about potential risks

<a href="https://ooni.torproject.org/about/risks">here</a>

Creator