What is DebugView?

A real-time diagnostic hub inside the GA4 admin that lets you monitor events, parameters, and user properties exactly as they arrive from testing devices.

Unlike the older Universal Analytics real-time reports which were heavily aggregated, the GA4 DebugView operates on a second-by-second timeline.

When you activate preview mode in Google Tag Manager (or append the _dbg=1 parameter to a URL), your device is flagged for debugging. Your specific data stream is isolated in the DebugView, allowing developers to inspect the exact payload of complex e-commerce events and confirm that Custom Dimensions are populating correctly before pushing the tags to production.

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Related Terms

Tag Assistant

A Google Chrome extension and web service that allows you to simulate a user session, trace tag firing rules, and diagnose tracking implementations.

Event Parameter

Additional pieces of metadata sent alongside an event to provide specific context about the action that occurred.

nld.

NiceLookingData

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