<tldr>We conducted the first large-scale experimental study of censorship by creating accounts on numerous social media sites, randomly submitting different texts, and observing from a worldwide network of computers which texts were censored and which were not. We also supplemented interviews with confidential sources by creating our own social media site, contracting with Chinese firms to install the same censoring technologies as existing sites, and—with their software, documentation, and even customer support—reverse-engineering how it all works. Our results offer rigorous support for the recent hypothesis that criticisms of the state, its leaders, and their policies are published, whereas posts about real-world events with collective action potential are censored.</tldr>
In other words, much like the west. A recent quote I think puts this in to context...
The preconditions of revolution exist in the UK, and most western countries. The number of active pre-conditions is quite stunning, from elite isolation to concentrated wealth to inadequate socialisation and education, to concentrated land holdings to loss of authority to repression of new technologies especially in relation to energy, to the atrophy of the public sector and spread of corruption, to media dishonesty, to mass unemployment of young men and on and on and on. [...] Preconditions are not the same as precipitants. We are waiting for our Tunisian fruit seller. The public will endure great repression, especially when most media outlets and schools are actively aiding the repressive meme of 'you are helpless, this is the order of things.' When we have a scandal so powerful that it cannot be ignored by the average Briton or American, we will have a revolution that overturns the corrupt political systems in both countries, and perhaps puts many banks out of business. Vaclav Havel calls this 'The Power of the Powerless.' One spark, one massive fire. - Robert David Steele, ex-Marine, ex-CIA, Open Source Intelligence Expert in The Guardian, 2014-06-19
I found that article really badly written and unclear, as did most people I know who read it. It seems to be an interesting view, but not communicated well there.
In other words, much like the west. A recent quote I think puts this in to context...
The preconditions of revolution exist in the UK, and most western countries. The number of active pre-conditions is quite stunning, from elite isolation to concentrated wealth to inadequate socialisation and education, to concentrated land holdings to loss of authority to repression of new technologies especially in relation to energy, to the atrophy of the public sector and spread of corruption, to media dishonesty, to mass unemployment of young men and on and on and on. [...] Preconditions are not the same as precipitants. We are waiting for our Tunisian fruit seller. The public will endure great repression, especially when most media outlets and schools are actively aiding the repressive meme of 'you are helpless, this is the order of things.' When we have a scandal so powerful that it cannot be ignored by the average Briton or American, we will have a revolution that overturns the corrupt political systems in both countries, and perhaps puts many banks out of business. Vaclav Havel calls this 'The Power of the Powerless.' One spark, one massive fire. - Robert David Steele, ex-Marine, ex-CIA, Open Source Intelligence Expert in The Guardian, 2014-06-19