Operating systems
Who left Windows Server, and who still runs it
28,613 websites in the top 1M run Windows Server, observed directly from the rendered page in the July 2026 crawl.
4,988
stopped running it that month
439
of those are 11–500 employees
4,725
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Windows Server
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
IIS 98%Microsoft ASP.NET 88%jQuery 83%Google Analytics 48%Bootstrap 48%Google Font API 46%Cloudflare 43%Google Tag Manager 32%core-js 31%Open Graph 31%
Share of a 3,000-domain sample of Windows Server users that also run each.