OONI Explorer is an open data resource on internet censorship around the world.
Since 2012, millions of network measurements have been collected from more than 200 countries. OONI Explorer sheds light on internet censorship and other forms of network interference worldwide.
To contribute to this open dataset, install OONI Probe and run tests!
Monthly coverage worldwide
What can you learn from OONI Explorer?
Below we share some stories from research reports based on OONI data.
We share these case studies to demonstrate how OONI's openly available data can be used and what types of stories can be told.
We encourage you to explore OONI data, discover more censorship cases, and to use OONI data as part of your research and/or advocacy.
Cuba
Cuba used to primarily serve blank block pages, only blocking the HTTP version of websites. Now they censor access to sites that support HTTPS by means of IP blocking.
Venezuela
Venezuelan ISPs used to primarily block sites by means of DNS tampering. Now state-owned CANTV also implements SNI-based filtering.
Ethiopia
Ethiopia used to block numerous news websites, LGBTQI, political opposition, and circumvention tool sites. As part of the 2018 political reforms, most of these sites have been unblocked.