First Input Delay (FID) 與 Interaction to Next Paint (INP) 的差異解析
Original: First Input Delay (FID) vs. Interaction to Next Paint (INP)
This article takes a deep dive into a major change in Google's Core Web Vitals: in March 2024, Interaction to Next Paint (INP) officially…
Google 宣布將於 2024 年 3 月正式以 INP 取代 FID 作為核心網頁指標。FID 僅測量首次互動的輸入延遲，而 INP 則涵蓋使用者在頁面上所有互動的完整反應時間（包含處理與渲染繪製）。這項轉變要求開發者更全面地優化 JavaScript 執行效率，Vercel 也提供相應的監測工具協助開發者平滑過渡。
This article takes a deep dive into a major change in Google's Core Web Vitals: in March 2024, Interaction to Next Paint (INP) officially replaced First Input Delay (FID). This change is critically important for front-end developers and website owners, as it directly impacts how search engine optimization (SEO) and real user experience are evaluated.
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