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Frontend Performance Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Frontend Performance
What's the most common, most fixable cause of poor CLS?
A
Slow server response times
B
Content that loads asynchronously without reserved layout space (images without width/height, ad slots with no fixed min-height)
C
Using too many CSS classes
D
Having too many Core Web Vitals to track
Check Answer