[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-25。"],[],["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"]]