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Request Investigator
Trace evidence. Narrow the boundary.
Each case starts with a symptom—not an answer. Inspect observations, test a hypothesis, and choose the next check that would reduce uncertainty.
Two compact investigations
Choose a case
There is no score and no hidden exact sequence. Use the evidence in whatever order helps you reason, then compare your conclusion with the investigation summary.
Case 01
The browser received a 502
A page request returns 502 Bad Gateway. Inspect browser and infrastructure evidence to find the boundary worth checking next.
Open Case 01Case 02
The page loaded, but the data did not
The page shell appears, but product data fails. Compare the requests and find which boundary needs investigation.
Open Case 02