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Frontend Performance Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Frontend Performance
In the Try It scenario, why does a page with 'good' LCP AND 'good' CLS still get a mediocre overall Lighthouse score?
A
This scenario is impossible — good Vitals always mean a good score
B
Total Blocking Time (TBT), often the largest single weight in the composite, was very poor (890ms) — dragging the overall score down despite good LCP/CLS
C
Lighthouse scores are randomly generated
D
The page must have a slow server response time
Check Answer