Amazon's cloud is accessed at least once a day by a third of all internet users, according to DeepField CEO and co-founder Craig Labovitz.
And about 1% of all internet consumer traffic in North America goes to the Amazon cloud. While that may seem small, it isn't.
YouTube last year accounted for 6% of all internet traffic, and a high-definition video can easily use the bandwidth required for millions of tweets, said Labovitz. The Amazon cloud platform doesn't host video content on the scale of a YouTube.
Whether it's Google, Microsoft or Amazon, the cloud services offered by these firms "are becoming the internet," and act as large utilities providing a variety of services, Labovitz said. "The nature of what the internet looks like is changing very quickly," he said.
The importance of Amazon was clearly established last year when a partial outage at the site triggered problems for a number of high-profile consumer sites.
DeepField gets its data from agreements it said it has with a number of large network providers. It only measures subscriber traffic, and excludes machine-to-machine communications and things such as "the nearly constant barrage of scanning/intrusion attempts from China," wrote Labovitz.
Companies that access Amazon cloud infrastructure were also ranked. In the top spot was Truste.com, which offers an online privacy seal program that is widely used in commercial sites. Almost 21% of the daily consumer connections to Amazon's cloud go to Truste.