The news comes as the Communist country continues to strengthen its already tight regulation of the internet, a move which critics say has picked up pace since President Xi Jinping came to power in 2012.
Platforms have also closed nearly 10 million internet accounts for "violating service protocol", the official news agency said today, likely referring to social media accounts.
"These moves have a powerful deterrent effect," Xinhua quoted Wang Shengjun, vice chairman of the Standing Committee of the National People's Congress (NPC), as saying.
This year alone, it has enacted new rules requiring foreign tech companies to store user data inside the country, imposed fresh content restrictions, and made it increasingly difficult to use software tools that allow users to circumvent censors.
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Google, Facebook, Twitter and The New York Times are all blocked in China, among countless other foreign websites.
Beijing strictly defends what it calls "cyber sovereignty" and maintains that its various forms of web censorship -- collectively known as "The Great Firewall" -- are necessary for protecting its national security.
When their content runs afoul of authorities, they can be shutdown or fined.
One way to bypass the strictly controlled domestic internet is by using a virtual private network (VPN) which can allow users to access the unfiltered global internet. But here too authorities have cracked down.
Earlier this week, Wu Xiangyang from the southern Guangxi Zhuang autonomous region was sentenced to five and a half years in prison for selling a VPN service on Alibaba's Taobao and other marketplaces.
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