Missing Links: A comparison of search censorship in China (The Citizen Lab)

The Citizen Lab: Missing Links: A comparison of search censorship in China. “Across eight China-accessible search platforms analyzed — Baidu, Baidu Zhidao, Bilibili, Microsoft Bing, Douyin, Jingdong, Sogou, and Weibo — we discovered over 60,000 unique censorship rules used to partially or totally censor search results returned on these platforms.”