[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-07-25 (世界標準時間)。"],[],["PageSpeed Insights (PSI) uses Chrome User Experience Report (CrUX) data, updated daily, to analyze a site's speed, either at the URL or origin level. PSI offers optimization suggestions based on web performance best practices and uses FCP and DCL metrics. PSI cautions that not all recommendations may be suitable for every site and suggests evaluating the cost versus benefit of implementing them. PSI uses a Blink renderer to fetch site data, showing captchas occasionally to ensure real user access, and it recommends CrUX data and Lighthouse for performance audits.\n"]]