Operating systems

These are the top Operating systems technologies based on market share in 2026.

# Technology Websites tracked Market share
1
Windows Server
1,100,000
36%
2
Ubuntu
1,000,000
36%
3
UNIX
360,000
12%
4
Debian
300,000
10%
5
CentOS
110,000
4%
6
Red Hat
30,000
1%
7
AlmaLinux
29,000
1%
8
FreeBSD
11,000
0.4%
9
Oracle Linux
4,300
0.1%
10
Fedora
3,400
0.1%

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Websites in United Kingdom

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Websites in United States

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Companies with emails and phone numbers

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Top 5,000 websites by traffic

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Websites with a .com domain

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5,000 low-traffic websites

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