About Umbraco
Umbraco is an open-source Microsoft ASP.NET based content management system.
How many people use Umbraco
GitHub · npm
#18 of 130 CMS we have counts for (of 403) · bars are GitHub stars across these neighbours; the category leader is Ghost at 55k · as of September 7, 2026
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Umbraco#18 of 130 CMS
Pagekit#17 of 130 CMS
Audit any site that runs Umbraco.
Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.
Implied technologies
Detecting Umbraco implies these are in the stack too - a report lists them alongside it.
How we audit Umbraco
We measure the detected version against Umbraco's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.
How the score worksMore technologies in CMS
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