Research reports

Read our research reports investigating internet censorship worldwide based on OONI data.

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Research reports

A Legal and Technical Analysis of Internet Censorship in France

Censorship Chronicles: The systematic suppression of independent media in Russia

iMAP 2024: State of Internet Censorship in 9 countries

Russia blocked OONI Explorer, a large open dataset on Internet censorship

Kazakhstan: TLS MITM attacks and blocking of news media, human rights, and circumvention tool sites

Tanzania: Surge in online LGBTIQ censorship and other targeted blocks

iMAP 2023: State of Internet Censorship in 10 countries

Grindr blocked in Jordan: Shrinking LGBTQ spaces

Senegal: Social media blocks and network outages amid political unrest

China is blocking OONI

Brazil: OONI data on the blocking of Telegram

Throttling of news media amid Kazakhstan’s 2022 presidential election

OONI measurements show ongoing internet censorship in Azerbaijan

How Internet censorship changed in Russia during the 1st year of military conflict in Ukraine

Ethiopia: Ongoing blocking of social media

Pakistan: Blocking of Wikipedia and Deutsche Welle (DW)

Turkey: Throttling and DNS blocking of Twitter following deadly earthquake

iMAP 2022: New Research Reports on Internet Censorship in 8 Asian countries

iMAP State of Internet Censorship Report 2022 - Cambodia

iMAP State of Internet Censorship Report 2022 - Hong Kong

iMAP State of Internet Censorship Report 2022 - Indonesia

iMAP State of Internet Censorship Report 2022 - Malaysia

iMAP State of Internet Censorship Report 2022 - Myanmar

iMAP State of Internet Censorship Report 2022 - Philippines

iMAP State of Internet Censorship Report 2022 - Thailand

iMAP State of Internet Censorship Report 2022 - Vietnam

Technical multi-stakeholder report on Internet shutdowns: The case of Iran amid autumn 2022 protests

Iran blocks social media, app stores and encrypted DNS amid Mahsa Amini protests

Azerbaijan and Armenia block TikTok amid border clashes

Measuring DoT/DoH Blocking Using OONI Probe: A Preliminary Study

A Quick Look at QUIC Censorship

New blocks emerge in Russia amid war in Ukraine: An OONI network measurement analysis

Measuring HTTP/3 censorship with OONI Probe

Russia started blocking Tor

A multi-perspective view of Internet censorship in Myanmar

Investigating Internet shutdowns through Mozilla telemetry

How countries attempt to block Signal Private Messenger App around the world

Italy blocks Gutenberg book publishing website

No Access: LGBTIQ Website Censorship in Six Countries

Zambia: Social media blocked amid 2021 general elections

Media censorship in Azerbaijan through the lens of network measurement

Myanmar: Data on internet blocks and internet outages following military coup

Uganda: Data on internet blocks and nationwide internet outage amid 2021 general election

Tanzania blocks social media (and Tor?) on election day

Belarus protests: From internet outages to pervasive website censorship

Measurement observations on network performance during the COVID-19 pandemic in Northern Italy

Investigating TLS blocking in India

DNS over TLS blocked in Iran

Those Unspoken Thoughts: A study of censorship and media freedom in Manipur, India

Evaluating OONI’s New Measurement Engine in the Context of the Blocking of Women on Web in Spain

Burundi blocks social media amid 2020 general election

Myanmar blocks “fake news” websites amid COVID-19 pandemic

Measuring SNI based blocking in Iran

Iran temporarily blocks the Farsi language edition of Wikipedia

Togo: Instant messaging apps blocked amid 2020 presidential election

Iran’s nation-wide Internet blackout: Measurement data and technical observations

On the blocking of abortion rights websites: Women on Waves & Women on Web

Egypt blocks BBC and Alhurra: Expanding media censorship amid political unrest

Resurgence of Internet Censorship in Ethiopia: Blocking of WhatsApp, Facebook, and African Arguments

Ethiopia: From internet blackouts to the blocking of WhatsApp and Telegram

Jordan: Measuring Facebook live-streaming interference during protests

Nigeria’s 2019 elections through the lens of network measurements

China is now blocking all language editions of Wikipedia

Benin: Social media blocking and Internet blackout amid 2019 elections

Cuba blocks independent media amid 2019 constitutional referendum

From the blocking of Wikipedia to Social Media: Venezuela's Political Crisis

Zimbabwe protests: Social media blocking and internet blackouts

Internet disruption in Gabon amid coup attempt

Uganda's Social Media Tax through the lens of network measurements

The State of Internet Censorship in Venezuela

South Sudan: Measuring Internet Censorship in the World's Youngest Nation

Mali: Social media disruptions amid 2018 presidential election?

The State of Internet Censorship in Egypt

Ethiopia: Verifying the unblocking of websites

Nigeria: Measuring Internet Censorship

Sierra Leone: Network disruptions amid 2018 runoff elections

Iran Protests: DPI blocking of Instagram (Part 2)

Iran Protests: OONI data confirms censorship events (Part 1)

How Pakistan blocked news outlets, social media sites, and IM apps amidst protests