Glossary term
What is LoAF (Long Animation Frames)?
LoAF stands for Long Animation Frames.
A Chrome API and DevTools tool. It shows which scripts and callbacks made a frame slow.
Learn it properly · Scenario DebuggingLesson 8: Layout Shift and Janky InteractionsLayout shift from images, ads and late fonts, and slow input from heavy event handlers. It ends with a short checklist.