Free Expression Online
Studies of Internet filtering, network interference, and other technologies and practices that impact freedom of expression online.
Featured in Free Expression Online
This report demonstrates the technical underpinnings of how WeChat image censorship operates and suggests possible evasion strategies.
The UN Special Rapporteur on violence against women, Ms. Dubravka Šimonović, recently released her draft report to the Human Rights Council on online violence against women and girls from a human rights perspective. The Special Rapporteur’s report includes many key insights from the Citizen Lab’s formal response on this issue last fall and echoes many of our sixteen key recommendations.
This report describes our investigation into the global proliferation of Internet filtering systems manufactured by the Canadian company, Netsweeper Inc.
This section details the research questions that informed our study. We also outline in detail the methods that we adopted to identify Netsweeper installations worldwide, and those that we employed to reduce the findings to countries of interest. We also present high-level technical findings and observations.
In this section, we spotlight several countries where we have evidence of public ISPs blocking websites using Netsweeper’s products. Each country has significant human rights, public policy, insecurity, or corruption challenges, and/or a history of using Internet censorship to prevent access to content that is protected under international human rights frameworks.