cloudfront.net is a domain used by Amazon Cloudfront which is an advertising company that is part of a network of sites, cookies, and other technologies used to track you, what you do and what you click on, as you go from site to site, surfing the Web. Over time, sites like cloudfront.net can help make an online profile of you usually including the sites you visit, your searches, purchases, and other behavior. Your profile can then be exchanged and sold between various companies like cloudfront.net as well as being sold to other advertisers and marketers.
More about Amazon Cloudfront:
Amazon CloudFront is a web service for content delivery. It integrates with other Amazon Web Services to give developers and businesses an easy way to distribute content to end users with low latency, high data transfer speeds, and no commitments.
Sites using cloudfront.net to track you: