01
AI crawler access
14%robots.txt evaluated per RFC 9309 for 17 AI crawlers (OpenAI, Anthropic, Perplexity, Google, Apple, Mistral…), meta robots tag and X-Robots-Tag header.
- Page reachable (HTTP 2xx)
- AI answer engines allowed
- No global block
- Page indexable
02
Discovery signals
9%XML sitemap (including indexes), lastmod freshness, canonical URL, internal linking and broken outbound links on a sample.
- Valid, fresh sitemap
- Self-referencing canonical
- Internal linking
- Healthy outbound links
03
Content structure
13%Single H1, heading hierarchy, semantic HTML5, lists and tables, text volume and readability (Flesch for English, Kandel-Moles for French).
- Exactly one H1
- No skipped levels
- Semantic HTML5
- Readability
04
AI citability
10%Self-contained passages, quantified facts, sources and authority links, definitions: what AI can quote verbatim.
- Self-contained passages
- Quantified facts
- Cited sources
- Clear definitions
05
Structured data
9%JSON-LD (including @graph) and microdata: entity identity, content type, WebSite, breadcrumbs, Product and reviews for shops.
- Error-free JSON-LD
- Organization / LocalBusiness
- Content type
- Complete Product (shops)
06
AI guide (llms.txt)
5%Presence and quality of llms.txt in the llmstxt.org format (a proposed standard): title, summary, sections and links to key pages. It serves AI assistants and agents that read your site; Google does not state that it uses it to rank search results.
- llms.txt published
- Summary
- Sections
- Links to key pages
07
Product data
8%Online shops only (detected automatically): price, availability, identifiers and consistency between the page and Schema.
- Structured price
- Availability
- SKU / GTIN
- Page / Schema consistency
08
Direct answers (AEO)
9%Marked-up FAQ, question headings followed by a short answer, comparison tables and numbered steps.
- FAQPage
- Question headings
- 10-80 word answers
- Tables and steps
09
Trust (E-E-A-T)
5%HTTPS, identified entity, legal notice, privacy, contact and about page, authors, dates and reviews.
- Legal notice
- Privacy policy
- Contact and about
- Authors and dates
10
Performance
4%Server response time, compression, HTML weight, caching, mobile viewport, modern image formats, blocking scripts, HSTS.
- Response < 800 ms
- Compression
- Caching
- Non-blocking scripts
11
Cross-platform consistency
4%Meta description, Open Graph, X (Twitter) card, title consistency and linked official profiles (sameAs).
- Meta description
- Complete Open Graph
- X card
- Official profiles
12
Accessibility (WCAG / EAA)
10%20 WCAG 2.2 A/AA rules checked on the page code (alternatives, forms, accessible names, zoom, ARIA…) and the statement required by the European Accessibility Act.
- Images with alternatives
- Labelled fields
- Zoom allowed
- Accessibility statement
For a site that is not an online shop, the Product data dimension is excluded and its weight is redistributed over the other dimensions.