# Page Diagnostics > Score and repair on-page SEO elements with a prioritized fix list. 页面诊断/On-Page优化 - Skill: `excelle/page-diagnostics` (Agent Skill) - Install (CLI): `npx skillmds@latest add excelle/page-diagnostics` - Raw SKILL.md: https://api.skillmd.com/api/skills/excelle/page-diagnostics/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Marketing & Growth - License: MIT - Author: excelle (https://skillmd.com/u/excelle) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/excelle/page-diagnostics --- # Page Diagnostics Audits on-page SEO elements and produces a scored, prioritized fix list. Catches what search engines see before users do. ## Quick Start ``` Diagnose on-page SEO for [URL] ``` ``` Why isn't [URL] ranking for [keyword]? ``` ``` Audit this page and give me a fix list: [URL] ``` ## Engine Contract - **Reads**: URL or pasted content, target keywords, competitor context - **Writes**: scored audit report with fix priorities - **Promotes**: critical fixes and patterns to hot cache - **Next handoff**: signal packet with scores and fix list ## Instructions Run five phases: 1. **Crawl View** — check indexability, canonical, robots, hreflang, redirect chains, status codes 2. **Content Signals** — verify H1 uniqueness, heading hierarchy, keyword placement, alt text, internal links, content depth 3. **Technical Markup** — validate schema, OG tags, title length, meta description length, canonical URL 4. **User Experience** — assess mobile usability, readability score, page speed indicators, intrusive elements 5. **Score and Prioritize** — assign REACH scores per dimension and rank fixes by impact vs effort ## Scoring - Each check: PASS / NEEDS_IMPROVEMENT / FAIL - Overall Page Score: weighted average of content (40%), technical (30%), UX (20%), indexability (10%) - Fixes ranked: Critical (blocks ranking) → High (major impact) → Medium (nice to have) → Low (观察) ## Example Output ``` Page: https://example.com/blog/post Score: 62/100 Critical: - Missing H1 (add within ) - No canonical tag - Title exceeds 70 characters High: - Primary keyword missing from first 100 words - Only 1 internal link (goal: 3-5) - Meta description missing Medium: - Alt text missing on 2 images - No FAQ schema ``` ## Next Best Engine - **Primary**: [site-health-audit](refine/site-health-audit/SKILL.md) — expand to sitewide technical health - **Alternatives**: [content-refresh](refine/content-refresh/SKILL.md), [pathway-optimizer](refine/pathway-optimizer/SKILL.md)