On-Site SEO Analyser - 90-Check AI Readiness Audit Tool

Run a free on-site SEO audit on any publicly accessible URL. This tool covers 90 checks across seven weighted categories: Technical Foundations, Content Quality, Structured Data and Schema, AI Chunking Quality, Entity and Semantic Clarity, On-Page UX Signals, and AI Citation Readiness. Get a prioritised action list ranked by impact vs. effort, plus an Excel download with the full report.

How the On-Site SEO Analyser Works

  1. Enter any page URL and the tool fetches the live HTML.
  2. Rule-based checks evaluate technical SEO, content signals, structured data, and UX elements across 60+ individual checks.
  3. Claude AI scores AI-specific checks including chunk independence, direct answer density, entity coverage, topic breadth, and citation probability for three simulated user queries.
  4. Checks are weighted by category: AI Chunking Quality carries 25% of the overall score, Entity and Semantic Clarity 20%, Technical Foundations 20%, Structured Data 15%, Content Quality 10%, AI Citation Readiness 7%, and UX Signals 3%.
  5. Every failing and warning check is ranked by a priority score based on SEO impact and fix effort, sorted into Fix Now, Plan It, and Polish tiers.

What This On-Site SEO Audit Covers

Technical Foundations checks include title tag presence and length, meta description, canonical tag, robots meta, HTTPS, H1 tag, heading hierarchy, and viewport. Content Quality checks include word count, text-to-HTML ratio, image alt text, internal links, WebP format, lazy loading, LCP priority, and H1 descriptiveness. Structured Data checks cover JSON-LD presence, schema types, FAQPage schema, BreadcrumbList schema, Open Graph tags, Twitter Cards, and date schema. AI Chunking Quality checks include average section length, FAQ content, ordered lists, tables, question-format headings, chunk independence, direct answer density, heading-content alignment, and definition density. Entity and Semantic Clarity checks cover named entity coverage, topic breadth, entity disambiguation, and semantic co-occurrence. AI Citation Readiness uses Claude to simulate three user queries and score citation probability for each.

Frequently Asked Questions

What is an on-site SEO analyser?

An on-site SEO analyser is a tool that evaluates a web page against SEO best practices across multiple categories. Unlike basic meta tag checkers, a comprehensive on-site analyser covers technical signals, content depth, structured data, and AI-specific readiness factors like chunking quality and entity coverage. This tool runs 90 checks in total and returns a weighted overall score with a priority-ranked action list.

What is AI chunking quality and why does it affect SEO?

AI chunking quality refers to how well your page content can be divided into independent, meaningful sections by AI retrieval systems. When large language models answer user queries, they often retrieve specific sections of a page rather than the full document. Pages where each section stands alone, opens with a direct answer, and accurately reflects its heading are retrieved more often and cited more reliably. This tool scores chunk independence, direct answer density, heading-content alignment, and definition density using AI analysis.

How is the overall score calculated?

Each of the seven categories has a weighted contribution to the overall score: AI Chunking Quality 25%, Entity and Semantic Clarity 20%, Technical Foundations 20%, Structured Data and Schema 15%, Content Quality 10%, AI Citation Readiness 7%, and On-Page UX Signals 3%. Within each category, individual checks are scored and the category score is the proportion of weighted points earned. The overall score is the weighted average of all category scores.

Is this tool free?

Yes. Enter any publicly accessible page URL to receive the full audit at no cost. No login required. The Excel report with all checks and the priority action list requires a business email or a tool review.