Web Performance
12 practice items · needed by 2 roles
Easy 2Medium 5Hard 5
Practice questions
- Native lazy loading for imageseasy
- What defer does on a scripteasy
- What INP measuresmedium
- Content jumps when images loadmedium
- Slow LCP from the hero imagemedium
- Caching fingerprinted bundlesmedium
- Avoiding layout thrashinghard
- Reducing the initial bundlehard
- Janky slide-in animationhard
- Slow click handler hurts INPhard
- Importing one function pulls a whole libraryhard
- Lighter images for a websitemedium