H2O

H2O is one of 91 technologies we detect in Web servers.

detected by AwesomeTechStack audits

About H2O

H2O is a fast and secure HTTP/2 server written in C by Kazuho Oku.

How we audit H2O

We measure the detected version against H2O'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 Weak or outdated links weigh more - one risky dependency can pull the whole score down.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 works

Audit any site that runs H2O.

Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.

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