Glossary term
What is lab data? Meaning for developers
Measurements from a controlled test (Lighthouse, DevTools with throttling). Good for repeating a problem and checking a fix.
Learn it properly · Scenario DebuggingLesson 0: The Debugging Method: Measure, Isolate, Hypothesize, VerifyThe method every answer in this series uses: which DevTools panel or server number answers which question, and how to explain your choices out loud.