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 12,333,618 websites that are Ubuntu Customers. We know of 4,836,629 live websites using Ubuntu and an additional 7,496,989 sites that used Ubuntu historically and 2,347,953 websites in the United States.
Get a list of 12,333,618 websites using Ubuntu which includes location information, hosting data, contact details, 4,836,629 currently live websites and an additional 2,386,228 domains that redirect to sites in this list. 7,496,989 sites that used this technology previously and 2,347,953 websites in the United States currently using Ubuntu.
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