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BestLemoon
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seo-page

Analyze a single web page for on-page, technical, content, schema, and image SEO issues.

6|Updated Apr 3, 2026
Search Tags:#schema#images#seo#core-web-vitals#content-quality#on-page#page-audit
One-click install
npx skills add https://github.com/BestLemoon/codex-seo --skill seo-page-bestlemoon
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: seo-page
Source: https://github.com/BestLemoon/codex-seo/tree/main/skills/seo-page
Command: npx skills add https://github.com/BestLemoon/codex-seo --skill seo-page-bestlemoon

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill diagnoses on-page and technical SEO issues for a single URL so users can quickly identify ranking blockers, content weaknesses, schema gaps, and image or performance problems that reduce search visibility and user experience.

Core Features & Use Cases

  • Comprehensive On-Page Audit: Evaluates title tags, meta descriptions, H1/H2 hierarchy, URL structure, internal/external linking, and canonical/robots tags.
  • Content Quality & E-E-A-T Checks: Assesses word count, readability, keyword usage, freshness, and author signals for trustworthiness.
  • Technical & Schema Validation: Detects Open Graph/Twitter tags, hreflang, JSON-LD schema presence and missing properties, and recommends ready-to-use JSON-LD snippets.
  • Image and Performance Guidance: Flags missing alt text, large image files, recommended formats, and potential Core Web Vitals concerns.
  • Robust Error Handling: Reports unreachable or auth-protected pages, notes JavaScript-rendered content limitations, and supports optional DataForSEO integrations for live SERP and backlink enrichment.

Quick Start

Run a full SEO audit for https://example.com and return a prioritized scorecard, issues list, and JSON-LD schema suggestions.

Frequently Asked Questions about seo-page

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run a single-page SEO audit for a specific URL?▼

A single-page SEO audit evaluates one URL to identify ranking blockers across on-page elements, content quality, schema validation, and image performance. It outputs a prioritized issues list, a scorecard, and ready-to-use JSON-LD suggestions.

What does on-page SEO analysis check for content quality and E-E-A-T?▼

On-page SEO analysis checks content quality and E-E-A-T by assessing word count, readability, keyword usage, content freshness, and author signals. This identifies trustworthiness issues that may reduce search visibility and user experience.

How do I validate JSON-LD schema and find missing structured data properties?▼

Validating JSON-LD schema detects structured data presence and flags missing properties on a page. The analysis identifies gaps in Open Graph, Twitter tags, and hreflang, then recommends ready-to-use JSON-LD snippets to fix them.

Can I audit Core Web Vitals and image optimization for a single page?▼

Yes, you can audit Core Web Vitals and image optimization by supplying a public URL. The analysis flags missing alt text, large image files, recommended formats, and potential performance concerns that degrade user experience.

Does single-page SEO analysis work with JavaScript-rendered content?▼

Single-page SEO analysis has limitations with JavaScript-rendered content and cannot access auth-protected pages. It flags unreachable URLs and notes JS rendering limits, requiring a rendered HTML snapshot for full evaluation.

Do I need DataForSEO integration for a technical SEO page audit?▼

DataForSEO integration is optional for a technical SEO page audit. The base analysis evaluates tags and schema independently, while integrating DataForSEO provides live SERP and backlink enrichment data for deeper troubleshooting.

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