Test any website at greatfirewallofchina.org and see in real-time if it’s .
GFOC disclaimer: this version 1.0 may report sites as being ‘blocked’, while there are only technical reasons for their unavailability. It ’s GFOC’s aim to collaboratively build a community that will be able to visualize Internet censorship in an increasingly accurate way.
Another site, OpenNet Initiative, is a well known organization that deals with i.e. worldwide. The OpenNet Initiative is a collaborative partnership of four leading academic institutions: the Citizen Lab at the Munk Centre for International Studies, University of Toronto, Berkman Center for Internet & Society at Harvard Law School, the Advanced Network Research Group at the Cambridge Security Programme, University of Cambridge, and the Oxford Internet Institute, Oxford University.