[[["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):2009-12-01。"],[],["Webmaster Tools launched a Site Performance feature, displaying site speed information and improvement suggestions. This feature shows page load times, historical performance, and comparisons with other sites. The data is gathered from Google Toolbar users who opted-in. It's a development product, and feedback is encouraged through the Webmaster Tools Forum. The goal is to make the web faster, with data-backed, actionable speed information for users. Further updates about this feature were provided in JohnMu's recent post.\n"]]