Optimize Time to First Byte | Articles | web.dev

Time to First Byte (TTFB) is a foundational web performance metric that precedes every other meaningful user experience metric such as First Contentful Paint (FCP) and Largest Contentful Paint (LCP). This means that high TTFB values add time to the metrics that follow it. It's recommended that your server responds to navigation requests quickly enough so that the 75th percentile of users experienc

[efcl]

Time to First Byte (TTFB)の改善について。 `Serving-Timing`ヘッダを使い詳細化、CDNの利用、ページのリダイレクトを避ける、SSR時にStreaming Server Renderingを行う。 Service Workerを使ったキャッシュ戦略、103 Early Hintsについてなど

[yug1224]

75パーセンタイルのユーザが良いFCPを体験できるように、TTFBが0.8秒以下になるように努力すべきらしい