Search Mailing List Archives

Limit search to: Subject & Body Subject Author
Sort by: Reverse Sort
Limit to: All This Week Last Week This Month Last Month
Select Date Range     through    

[liberationtech] A Method for Identifying and Confirming the Use of URL Filtering Products for Censorship

Ronald Deibert r.deibert at
Thu Oct 3 06:06:20 PDT 2013

Hi Lib Tech

The Citizen Lab published a new research paper on URL filtering and censorship, which presents an initial methodology for identifying and confirming the use of URL filtering products around the world. We leverage the fact that many of these products accept user-submitted sites for blocking to confirm that a specific URL filtering product is being used for censorship. Using this method, the paper confirms the use of McAfee SmartFilter in Saudi Arabia and the United Arab Emirates (UAE) and Netsweeper in Qatar, the UAE, and Yemen. The results show that these products are being used to block a range of content, including oppositional political speech, religious discussion and gay and lesbian material, and speech generally protected by international human rights norms. The paper is authored by Citizen Lab's Ronald J. Deibert, Masashi Crete-Nishihata, Jakub Dalek, Bennett Haselton, Helmi Noman, and Adam Senft, and Phillipa Gill of the Department of Computer Science, Stony Brook University.

Data available at


Ronald Deibert
Director, the Citizen Lab 
and the Canada Centre for Global Security Studies
Munk School of Global Affairs
University of Toronto
(416) 946-8916
r.deibert at

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the liberationtech mailing list