Crawl 2026-07 · top 1M sites · observed, not inferred

The state of operating systems

17 technologies, 62,471 detected installs. Every figure below comes from loading the real page in a real browser during the July 2026 crawl — not from a survey, a panel, or an inference model.

Market share

Windows Server45.8%

Ubuntu36.6%

Debian7.9%

CentOS5.1%

UNIX2.1%

Red Hat1.1%

AlmaLinux1.0%

FreeBSD0.3%

Fedora0.1%

Gentoo0.0%

SUSE0.0%

Scientific Linux0.0%

Darwin0.0%

Windows CE0.0%

UniFi OS0.0%

YunoHost0.0%

Raspbian0.0%

Share of detected installs within this category, top 1M sites.

How to cite this

Figures are from the HTTP Archive July 2026 crawl of the top 1,000,000 sites, analysed by Ansafi. HTTP Archive is an open Internet Archive project; the underlying data is public. Method at ansafi.com/methodology, known limits at ansafi.com/coverage.