China's Internet regulators received 1.74 million complaints nationwide in May, the first time the number of monthly complaints about content rose above a million.
According to the State Internet Information Office, pornographic content accounted for 58.8 percent of all complaints, followed by hazardous political content (24.4 percent), and fraudulent information (7.3 percent). Cases of the infringement of privacy and personal rights account for 3.4 percent of all complaints, while terrorism accounts for 2.6 percent.
Tencent, China's leading social platform provider, received 1.01 million complaints, with its WeChat and QQ platforms receiving 403,000 and 588,000 complaints respectively.
Tencent was followed by Sina, which received 361,100 complaints, a majority of which came from Sina Weibo.
Both companies shut down accounts that used their social platforms to conduct fraud or solicit prostitution.