Internet Censorship
Detecting Internet Censorship: Tools and Techniques
Nart Villeneuve
PHD Candidate, Senior Research Fellow
Citizen Lab , Munk Centre for International Studies
University of Toronto

Overview
 Techniques to test for Internet censorship.
 Key Questions
 Tests and Tools
 Drawing Conclusions

Key Questions
 Filtering can take a variety of forms and can be
implemented at a variety of locations:
 Is there a way to determine what is filtered?
 Is there a way to determine how filtering is
occuring?
 Is there a way to determine why specific content is
filtered?