OONI Probe APK

OONI Probe

Uncover the Truth of Your Internet

• Is your digital world being quietly restricted?

• When websites fail to load or apps lag, you deserve to know why.

• OONI Probe empowers you to look behind the curtain of your network, transforming your device into a tool for global transparency.

• By joining this mission, you contribute to a worldwide movement dedicated to uncovering internet censorship and ensuring a free, open web for everyone.

Expose Digital Barriers

• Detect exactly which websites and social media platforms are being blocked in your region.

• Gather hard evidence of network interference that can be used to challenge censorship.

• Identify hidden surveillance systems and middleboxes designed to monitor or restrict your traffic.

Verify Your Performance

• Measure your actual network speed and stability to see if you are getting the service you pay for.

• Evaluate the quality of your video streaming to detect intentional throttling or technical bottlenecks.

• Use industry-standard diagnostic tests to audit the health of your connection.

Join a Global Movement for Transparency

• Become part of a community that has collected millions of measurements across 200 countries since 2012.

• Support a non-profit, free software project hosted by The Tor Project and the Open Observatory of Network Interference.

• Contribute to a public database that allows researchers and activists to hold power to account.

Commitment to Openness

• Every test is built on transparent, open-source code available for public audit on GitHub.

• All findings are published as open data, ensuring that the fight against censorship is backed by verifiable facts.

• Discover more and explore the global data at ooni.io.

FAQ

Q: How exactly does OONI Probe detect website censorship?

A: When you run a test, OONI Probe attempts to connect to a curated list of websites and social media platforms from your local network. It then compares the results against a control connection that is known to be uncensored. If the site fails to load on your network but works fine elsewhere, OONI Probe analyzes the response to determine if the blockage is caused by DNS tampering, TCP blocking, or an HTTP block page.

Q: What are middleboxes, and can OONI Probe find them?

A: Middleboxes are devices that network operators place inside the internet infrastructure to monitor, filter, or route traffic. While some of them serve legitimate technical purposes, others are used for surveillance or censorship. OONI Probe includes specialized tests that can detect the presence of these hidden middleboxes by looking for anomalies in how your network traffic is handled.

Q: Can I use OONI Probe to test my actual internet speed?

A: Yes, you certainly can. OONI Probe features built-in network performance tests that measure both your download and upload speeds, as well as your connection latency. This helps you verify whether your internet service provider is actually delivering the bandwidth you are paying for, or if your connection is suffering from technical bottlenecks.

Version History

v6.2.0——10 Aug 2026

Measure Internet Censorship, Speed & Performance Download the latest version of OONI Probe to enjoy new features and updates immediately!

*6.2.0

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*6.1.1

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*6.1.0

Minor bug fixes and improvements. Install or update to the newest version to check it out!