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anonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·tech

anonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·tech

anonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·tech

anonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·tech

anonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·techanonymous · 23:48 3/6/26 · ORA·tech

Chỉ số CLS (Cumulative Layout Shift) là gì? Nguyên nhân và cách tối ưu hóa CLS? · ORA·tech

Trung bình Pro#performance

Chỉ số CLS (Cumulative Layout Shift) là gì? Nguyên nhân và cách tối ưu hóa CLS?

15 tháng 2, 2026

Tóm tắt nhanh

CLS (Cumulative Layout Shift) là chỉ số Core Web Vitals đo lường sự dịch chuyển bố cục không mong muốn của trang web trong quá trình tải. Để tối ưu CLS, cần xác định kích thước cho media, dự phòng không gian cho nội dung động và tránh dùng các thuộc tính CSS kích hoạt Reflow cho animation.

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