on-page-seo-auditor

Use when the user asks to "audit on-page SEO" or "diagnose why a single page dropped"; scores titles, meta, header structure, keyword placement, links, and images with prioritized fixes. For E-E-A-T / publish-readiness scoring use content-quality-auditor; for crawl / CWV / indexing use technical-seo-checker. 页面SEO审计/排名诊断