Antigravity Agent
35 lines
1.2 KiB
Markdown
35 lines
1.2 KiB
Markdown
---
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id: wiki-2026-0508-cumulative-layout-shift-cls
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title: Cumulative Layout Shift (CLS)
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category: 10_Wiki/Topics
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status: duplicate
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canonical_id: core-web-vitals
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duplicate_of: "[[Core-Web-Vitals]]"
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aliases: [cls, layout-shift]
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source_trust_level: A
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confidence_score: 0.9
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verification_status: redirected
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tags: [duplicate, performance, web-vitals]
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last_reinforced: 2026-05-10
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github_commit: pending
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---
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# Cumulative Layout Shift (CLS)
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> **이 문서는 [[Core-Web-Vitals]] 의 중복본입니다.** Canonical 문서로 redirect.
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## 핵심 요약 (specialization aspects)
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- CLS 는 매 Core Web Vitals 의 stability metric — visible element 가 unexpectedly shift 한 amount 의 sum.
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- 매 target: CLS < 0.1 (good), < 0.25 (needs improvement).
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- 매 common causes: 매 image without dimensions, 매 ads/iframes, 매 web font swap (FOUT/FOIT), 매 dynamically injected content above fold.
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- 매 fix: `width`/`height` attributes, `aspect-ratio` CSS, `font-display: optional`, `min-height` placeholders, CSS `content-visibility`.
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## 🔗 Graph
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- 부모: [[Core-Web-Vitals]] (canonical)
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## 🕓 변경 이력
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | 중복 처리 — canonical 문서로 redirect |
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