先看看示例
作者提供的示例，实际效果取决于你的输入和使用工具。
输入
审查官网报告下载页，列出超过15MB的PDF并建议压缩或增加HTML正文页。
输出
预期交付：超限PDF清单、体积分级结论与压缩或替代页建议。（编辑说明，非实际运行结果）
方法说明
--- name: pdf-size description: "Use when auditing a site that publishes downloadable PDFs (reports, white papers, legal documents, manuals). Applies to any site where PDFs are linked as indexable content resources." metadata: category: seo priority: medium difficulty: intermediate estimatedTime: "15" source: frontendchecklist.io url: https://frontendchecklist.io/rules/seo/pdf-size --- # Keep linked PDFs under 60 MB PDFs larger than Googlebot's download threshold are partially crawled or skipped, meaning their content may not appear in search results even when linked from well-indexed pages. ## Quick Reference - Googlebot truncates files larger than 15 MB for crawling; 60 MB is a documented upper limit - Large PDFs may be partially indexed or skipped entirely - Compress PDFs before publishing: use PDF optimisation tools to reduce file size - Add HTML landing pages alongside PDFs to ensure content is indexable ## Check Find all <a href='*.pdf'> links on the site. For each linked PDF, perform a HEAD request and check the Content-Length header. Flag any PDF exceeding 10 MB (recommend compression) or 15 MB (likely to be truncated by Googlebot). ## Fix Compress large PDFs using a PDF optimisation tool (Adobe Acrobat, Ghostscript, or Smallpdf). Remove embedded high-resolution images, fonts, and metadata not required for reading. If compression is insufficient, create an HTML page with the same content as the primary indexable version, and offer the PDF as a download. ## Explain Googlebot downloads and indexes the content of PDFs linked from your site. However, it has a file size limit for downloads — files beyond this limit are partially indexed or skipped. Large PDFs also slow down crawling and consume crawl budget. Keeping PDFs small ensures their full content appears in search results. ## Code Review Find all <a href> links with .pdf extension. For each PDF URL, perform a HEAD request and check Content-Length header value. Flag PDFs exceeding 10,485,760 bytes (10 MB) for compression review. Flag PDFs exceeding 15,728,640 bytes (15 MB) as at-risk for partial indexing. Verify PDF URLs return 200 status and appropriate Content-Type: application/pdf header. --- For full implementation details, code examples, and framework-specific guidance, see `references/rule.md`. Rule page: https://frontendchecklist.io/rules/seo/pdf-size