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Detection playground

A small in-browser matcher: feed it an event and see which rule shapes would fire. Nothing leaves your browser.

How it works

Detection content on this site covers real sources (Sigma, Splunk SPL, KQL). A real engine evaluates them properly. This page is a deliberately reduced matcher — each rule pays attention to a couple of reliable substrings — so you can see the shape of detection engineering without it pretending to be a full SIEM.

Try it