China's government is cracking down on tech companies.NOEL CELIS/AFP via Getty Images China's government published a list of details about 30 tech companies' proprietary algorithms. The list comes among a broad regulatory crackdown on tech companies. It's not clear exactly how much the Chinese government actually knows about the algorithms. China's internet regulator, the Cyberspace Administration of China, on Monday published a document cataloging algorithms belonging to giant tech companies including TikTok parent Bytedance, Alibaba, and Tencent.The document is part of a recent Chinese crackdown on tech companies, which have historically been reluctant to give out information about their proprietary algorithms.The CAC said in April tech companies would have to submit their algorithms for review, saying it would inspect them for "abuse" and "bad information."China is the first country in the world to publish an index of private company algorithms, although it is not clear exactly how much information the companies actually surrendered.The descriptions of each company algorithm are fairly superficial.