The OONI Probe app consists of many different tests. Click on the cards below to learn how each OONI Probe test works.
This test checks whether access to websites is blocked by means of DNS tampering, TCP/IP blocking or by a transparent HTTP proxy.
This test is designed to examine the reachability of Facebook Messenger within a tested network.
This test measures the reachability of the Signal messaging app within a tested network.
This test is designed to examine the reachability of Telegram's app and web version within a tested network.
This test is designed to examine the reachability of both WhatsApp's app and the WhatsApp web version within a tested network.
This test provides an automated way of examining whether Tor works in a tested network.
This test provides an automated way of measuring whether the Tor Snowflake pluggable transport works on a tested network.
This test provides an automated way of examining whether Psiphon works in a tested network.
This test provides an automated way of examining whether RiseupVPN works in a tested network.
Measures video streaming performance
NDT (Network Diagnostic Test) provides a sophisticated speed and diagnostic test for understanding the performance of your network
This test tries to detect the presence of network components (“middle box”) which could be responsible for censorship and/or traffic manipulation.
This test compares the DNS query results from a DNS resolver which is considered to be reliable with one that is tested for tampering.
This test examine whether the domain names of websites are blocked.
This test tries to detect online censorship based on a comparison of HTTP requests over Tor and over the network of the user.
This test provides an automated way of examining whether Lantern works in a tested network.
This test examines whether the domains used by Meek (a type of Tor bridge) work in tested networks.
This test measures whether Tor bridges work in tested networks.
This test measures the reachability of the Tor network.