Notwithstanding Amazon's fast growth, Go Daddy hosts 36 million sites — nearly 6% of the world's websites — making it the largest hosting company in terms of hostnames. The number of sites hosted does not, however, necessarily scale with the number of computers (physical or virtual) used to serve the corresponding content: shared hosting providers will often be able to host several hundred or even thousand sites from a single machine, whereas VPS and dedicated hosting providers may only serve a few. Although Netcraft found 23k web-facing computers at Go Daddy, Amazon has been the largest hosting company in terms of web-facing computers since September 2012 with 139k web-facing computers this month — Go Daddy hosts, on average, more than 23 times more sites per web-facing computer than Amazon. Although Go Daddy is the largest hosting company by hostname, the distribution of sites hosted is skewed towards the less busy: it hosts 2.6% of the million busiest sites, and only a single site in the top 1,000. Amazon, on the other hand, hosts a similar number in the million busiest, and 5.1% of the top 1,000 sites.