[[["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):2025-02-25。"],[[["A sitemap index file is used to submit multiple sitemaps to search engines, especially when a single sitemap exceeds the size limit."],["Sitemaps listed within the index file must reside on the same site (unless cross-site submission is configured) and be in the same directory or a lower subdirectory."],["You can submit up to 500 sitemap index files for each website registered in your Search Console account."],["Sitemap index files have a specific XML format, similar to sitemaps, and include required tags like `sitemapindex`, `sitemap`, and `loc`."],["Optional tags like `lastmod` can be added to indicate the last modification time of the sitemap file, aiding in crawl scheduling by search engines."]]],["When a sitemap exceeds size limits, split it into smaller sitemaps. Use a sitemap index file to manage and submit multiple sitemaps simultaneously. The sitemap index's XML format mirrors that of a sitemap and follows the Sitemap Protocol. Referenced sitemaps must be on the same site or lower in the directory, or use cross-site submission. A sitemap index can contain up to 50,000 `loc` tags, with `sitemapindex`, `sitemap`, and `loc` being required. Up to 500 sitemap indexes can be submitted per site.\n"]]