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Empirical Analysis of Internet Filtering in China
posted by filter_editor on Tuesday December 03, @09:16AM
from the do-you-see-what-I-see? dept.
Censorship Ben Edelman writes "Professor Jonathan Zittrain and I are studying Internet filtering in countries worldwide, including restrictions on Web access in China. As in our prior testing of Saudi Arabia, there exists no publicly available master list of blocked sites. To assemble something approaching such a list, we have found ways to test remotely "twenty questions" style, asking about thousands of individual URLs, whether based upon a domain name or an IP address.

We today released a report detailing the results of testing over the past eight months. [Additional details follow.]


We tested more than two hundred thousand web sites, and we found nearly twenty thousand to be inaccessible from China. Highlights include sites operated by world governments, non-governmental organizations, and educational institutions -- as well as sites with health, entertainment, and political content.

Our report is available at
    http://cyber.law.harvard.e du/filtering/china

We continue to operate a system for real-time testing of filtering in China
    http://cyber.law.harvard.e du/filtering/china/test


Ben Edelman
Berkman Center for Internet & Society
Harvard Law School"

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