웹 성능 지표 Cheatsheet

- 사용자 중심 성능 지표를 4가지로 구성해서 설명하고, 목표해야 하는 점수를 나열
ㅤ→ 진행여부 : TTFB, FP, FCP
ㅤ→ 유용성 : LCP, VC, SI
ㅤ→ 사용 가능 여부 : FID, mFID, TBT, TTI
ㅤ→ 쾌적함 : CLS, Frame Rate
- Cheatsheet
ㅤ→ Time to First Byte (TTFB) <600ms
ㅤ→ First Paint (FP) <1.8s
ㅤ→ First Contentful Paint (FCP) <1.8s
ㅤ→ Largest Contentful Paint (LCP) <2.5s
ㅤ→ Visually Complete (VC) <3.4s
ㅤ→ Speed Index (SI) <3.4s
ㅤ→ First Input Delay (FID) <100ms
ㅤ→ Max Potential First Input Delay (mFID) <130ms
ㅤ→ Total Blocking Time (TBT) <200ms
ㅤ→ Time to Interactive (TTI) <3.8s
ㅤ→ Cumulative Layout Shift (CLS) <0.1
ㅤ→ Frame Rate (FR) 60 FPS