Silicon Valley dominates the Internet, but the initial public offering by Alibaba Group Holding Ltd shows how much action is shifting to Asia.

According to S&P Capital IQ, a multinational financial information provider headquartered in New York, four of the world's 10 largest Internet companies by stock-market value are based in Asia, up from two in 2004.

Let's have a look at the world's top 10 Internet companies by market capitalization as of Sept 15.

No 10 JD.com ($39.5 billion)

Richard Liu, CEO and founder of China's e-commerce company JD.com, rides an electric tricycle as he leaves a delivery station to deliver goods for customers to celebrate the anniversary of the founding of the company, in Beijing, June 16, 2014. [Photo/Agencies]