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最后更新时间 (UTC)：2024-09-03。
[null,null,["最后更新时间 (UTC)：2024-09-03。"],[[["This page is outdated and refers to a deprecated version of PageSpeed Insights API (version 4) which will be shut down."],["Version 5 of the API is the latest and uses real-world data and lab data for providing insights."],["The page lists several web performance optimization techniques, including avoiding redirects, enabling compression, improving server response time, leveraging browser caching, minifying resources, optimizing images and CSS delivery, prioritizing visible content, and removing render-blocking JavaScript, but these instructions might be outdated."]]],[]]