AVIF 是一種新的圖片格式，採用高壓縮率、高效率和廣泛的採用方式，因此很快就在網路上越來越受歡迎。AVIF 是免權利金的開放圖片格式，是根據 Alliance for Open Media 標準化的 AV1 影片轉碼器。這篇網誌文章將概略說明生態系統採用 AVIF 的方式，以及靜態圖片和動畫的 AVIF 可為開發人員帶來哪些效能和品質優勢。

Interaction to Next Paint (INP) is an experimental metric that assesses a page's overall responsiveness to user interactions by observing the latency of all click, tap, and keyboard interactions that occur throughout the lifespan of a user's visit to a page. The final INP value is the longest interaction observed, ignoring outliers.

With internet speeds improving day-by-day, users expect websites to respond and behave faster than ever. The Economic Times handles over 45 million monthly active users. By optimizing for Core Web Vitals across the domain, on AMP and non-AMP pages, we managed to significantly reduce bounce rates and improve the reading experience.

Priority hints indicate the relative importance of resources to the browser. They can enable optimal loading and improve Core Web Vitals.

Learn more about speculative prerendering in the browser and how to participate in Chrome origin trial.

Answers to common questions about SPAs, Core Web Vitals, and Google's plan to address current measurement limitations.

Images are a massive part of the Internet. On the median web page, images account for 51% of the bytes loaded, so any improvement made to their speed or their size has a significant impact on performance.

Finding correlation between site performance and business metrics was the key to driving the success of their optimization efforts.

If you ever tried optimizing your website performance, you probably run your web page through Google Page Speed and got several tips on what can be improved to make your site faster.

Learn how to improve render times with critical CSS technique.