W3Cook-Usage Trends and Market Share Recipes of the World Wide Web
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OS Market Share and Usage Trends


Name 2015-07 2015-06 % Change
Linux41.0655%43.7436%-6.12%
Ubuntu20.5537%19.3261%+6.35%
CentOS19.7450%19.1851%+2.92%
Debian13.9707%13.2345%+5.56%
Windows1.8628%1.8069%+3.09%
FreeBSD1.7412%1.6893%+3.07%
Fedora1.0149%0.9776%+3.81%
SUSE0.0454%0.0368%+23.62%
RedHat0.0007%0.0000%+100.00%


The above chart and table shows the usage statistics and market share of operating systems used by web servers. This does not include OS usage on home computers. An operating system like Linux or Windows support multi-tasking, process execution and can server hundreds of simultaneous visitors on your site. Linux is a free and open source operating system used by about half of the websites. CentOS, Debian, Ubuntu are flavors of Linux. Microsoft's Windows is not a free OS and it has a small market share. CentOS is the most popular flavor of Linux.

We welcome comments and suggestions from our users. We especially encourage you to suggest new technologies in the OS category which we would review and add to our market share pages. Please do not hesitate to use the email address in the footer.
OS Change Trends



2015-06 2015-07 Percentage
LinuxCentOS15.29%
LinuxUbuntu14.79%
CentOSLinux10.78%
CentOSUbuntu10.03%
DebianUbuntu9.52%
LinuxDebian9.02%
UbuntuDebian7.77%
UbuntuLinux7.52%
UbuntuCentOS6.52%
CentOSDebian4.51%
DebianLinux4.26%


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