Vietnam is among the top 20 Internet using countries in the world, according to the US-based Pingdom website monitoring service.

With 24.3 million Internet users, Vietnam stood at No.20 in the list, right after Canada, which has 25.1 million users, Pingdom said in a report published Tuesday.

There are a total of 1.8 billion Internet users in the world and the top 20 countries account for nearly 82 percent of the figure, it said. China takes the top spot with almost twice as many Internet users as the US, the second position holder.

In five to ten years, the order in the top 20 list will be quite different as Internet penetration in countries like India, China, Brazil, Vietnam and the Philippines is on the rise, the company said.