[[["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"]],[],[],["Google Public DNS retains minimal data to ensure speed and problem resolution. Temporary logs, including full IP addresses, are deleted within 24-48 hours. Permanent logs exclude personally identifiable information and IP addresses, retaining only city/metro-level location data for debugging and abuse analysis. A subset of this data is randomly sampled for permanent storage after two weeks. Permanent logs include request details like domain name, type, transport protocol, client's ISP, user's geolocation, response codes, caching information, and timing. Google does not link this data with other personal user information.\n"]]