WWW FAQs: How big is the Internet?

2003-12-08: no one knows the exact answer. There is no one entity in charge of the Internet as a whole; address space is registered by large ISPs which then disseminate it to smaller ISPs and other companies. However, the Google search engine, widely considered the most effective as of this writing, currently claims to index over three billion web pages. Assuming for a moment that the average website has 50 indexable web pages and that Google indexes two-thirds of the websites that exist, there are roughly 40 million websites in the world. Most estimates put the number of individual users with Internet access at around 300 million, with the largest concentrations in the United States, Europe, and parts of Asia.

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