Google China is a subsidiary of Google. Once a popular search engine, most services offered by Google China were blocked by the Great Firewall in the People's Republic of China. In 2010, searching via all Google search sites, including Google Mobile, was moved from mainland China to Hong Kong. By November 2013, Google's search market share in China had declined to 1.7% from its August 2009 level of 36.2%, though it has slowly risen since, representing 3.8% of the search engine market by July 2020.