Ubuntu is a free, Debian derived Linux-based operating system, available with both community and professional support.
https://ubuntu.com
Operating Systems and Servers
Get access to data on 12,281,621 websites Ubuntu Customers. We know of 3,062,388 live websites using Ubuntu and an additional 9,219,233 sites that used Ubuntu historically and 1,244,463 websites in the United States.
Get a list of 12,281,621 websites using Ubuntu which includes location information, hosting data, contact details, 3,062,388 currently live websites and an additional 1,569,688 domains that redirect to sites in this list. 9,219,233 sites that used this technology previouslyand 1,244,463 websites in the United States currently using Ubuntu.
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