⚡ Operating Systems

Server operating systems are designed for computers that provide network services, such as hosting websites or storing data.

They focus on running server software such as web servers and database systems, handling multiple tasks simultaneously, supporting multiple users and connections, and ensuring system stability and security under heavy load.

According to our research, operating systems are detected on 13.3% of all websites.
70.5% of these sites use only one operating system, 29.3% use two, and 0.2% use three or more of them.

⭐ Most Popular in 2026

The following chart shows the leading operating systems on the web in 2026, based on market share.

The most popular is Linux, which dominates the market with a substantial 66.4% share.
It is followed by Windows with 30.1% and Ubuntu with 16.5%.

Linux 66.4%
Windows 30.1%
Ubuntu 16.5%
Debian 6.6%
CentOS 4.4%
Unix 3.3%
Red Hat Enterprise Linux 0.5%
AlmaLinux 0.5%
FreeBSD 0.4%
Rocky Linux 0.3%
Amazon Linux 0.3%
Fedora 0.1%
Gentoo 0.1%
Oracle Linux 0.08%
CloudLinux 0.06%

You can also drill down by country:

🚀 Country Highlights

Here is a list of systems that are especially popular in certain countries.
Differences between global and country rankings are shown in parentheses.

Windows is #1 in China ^(-1)
Ubuntu is #2 in Russia ^(-1)
Debian is #2 in France ^(-2)
CentOS is #2 in Japan ^(-3)
Unix is #2 in Germany ^(-4)

✨ Best Operating Systems

Below is a more detailed list of 22 operating systems we detect, ranked by their market share.

Rank	Name	Market share
1	Linux San Francisco, California, United States A family of open-source, Unix-like operating systems based on the Linux kernel, originally created by Linus Torvalds and now maintained by a global community of contributors. FreeOpen source	66.4%
2	Windows Redmond, Washington, United States A family of proprietary operating systems from Microsoft used on personal computers, servers, and virtualized environments. $1,176+	30.1%
3	Ubuntu London, United Kingdom A free operating system based on Debian GNU/Linux, designed for use on desktops, laptops, servers, and mobile devices. FreeOpen source$500+/year	16.5%
4	Debian New York, United States A free and open source Linux distribution. FreeOpen source	6.6%
5	CentOS Raleigh, North Carolina, United States A discontinued open-source Linux distribution compatible with RHEL. Legacy	4.4%
6	Unix San Francisco, California, United States A family of multitasking, multi-user computer operating systems.	3.3%
7	Red Hat Enterprise Linux Raleigh, North Carolina, United States A commercial Linux distribution developed by Red Hat for the enterprise market. $383.90+	0.5%
8	AlmaLinux Estero, Florida, United States An open source, community owned and governed, free enterprise Linux distribution focused on long-term stability. FreeOpen source	0.5%
9	FreeBSD Boulder, Colorado, United States An open-source operating system used to power modern servers, desktops, and embedded platforms. FreeOpen source	0.4%
10	Rocky Linux Albany, California, United States An open-source enterprise operating system designed to be 100% bug-for-bug compatible with Red Hat Enterprise Linux. FreeOpen source	0.3%
11	Amazon Linux Seattle, Washington, United States A supported and maintained Linux image provided by Amazon Web Services for use on Amazon Elastic Compute Cloud. Free	0.3%
12	Fedora A Linux distribution developed by the Fedora Project. FreeOpen source	0.1%
13	Gentoo Albuquerque, New Mexico, United States A Linux distribution built using the Portage package management system.	0.1%
14	Oracle Linux Austin, Texas, United States A Linux distribution based on RHEL source code, freely distributed by Oracle.	0.08%
15	CloudLinux Estero, Florida, United States A commercial Linux distribution marketed to shared hosting providers. $7+/month	0.06%
16	SUSE Linux Nuremberg, Germany A Linux-based operating system developed by SUSE. FreeOpen source€477.24+/year	0.04%
17	OpenBSD Edmonton, Alberta, Canada A security-focused open-source operating system based on the Berkeley Software Distribution.	0.02%
18	Raspbian A free operating system based on Debian optimized for the Raspberry Pi hardware. FreeOpen source	0.008%
19	TurboLinux A discontinued Japanese Linux distribution. Legacy	0.008%
20	Scientific Linux A discontinued Linux distribution based on RHEL. Legacy	0.005%
21	Mageia An open source operating system forked from Mandriva Linux.	0.002%
22	ClearOS Orem, Utah, United States A Linux distribution based on Red Hat Enterprise Linux.	<0.001%

👉 See Also

🔗 Links
- ⚡Web Servers
- ⚡Databases

Data is based on the analysis of 3,040,870 websites.
Statistics were last calculated on February 3, 2026.
For details, see our methodology and disclaimer.