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 12,276,805 websites Ubuntu Customers. We know of 3,587,977 live websites using Ubuntu and an additional 8,688,828 sites that used Ubuntu historically and 1,502,491 websites in the United States.
Get a list of 12,276,805 websites using Ubuntu which includes location information, hosting data, contact details, 3,587,977 currently live websites and an additional 1,809,514 domains that redirect to sites in this list. 8,688,828 sites that used this technology previouslyand 1,502,491 websites in the United States currently using Ubuntu.
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