mnhn.fr 29 F
🛡️ SEO 0 🤖 GEO 50 ⚡ Perf 80 🏗️ Arch 36

mnhn.fr — Global SEODiff Score 29/100

mnhn.fr
📊

The AI-Readiness score for mnhn.fr stands at a concerning 5/100, placing it among the least AI-accessible sites in the index. Within the infrastructure vertical, this places mnhn.fr below the industry average of 57 —, indicating room for competitive improvement. Server-side rendering keeps the ghost ratio near zero, giving AI systems direct access to all visible content. A 5.0× bloat ratio is typical for sites in this tech tier — not wasteful, but streamlining could further boost extractability. The complete absence of JSON-LD schema is a missed opportunity: even basic Organization markup would improve how AI crawlers understand this domain. All major AI crawlers (GPTBot, ClaudeBot, CCBot, Google-Extended) are restricted by robots.txt — the site has limited accessibility to AI search.

29
F — Global SEODiff Score
Comprehensive search visibility assessment
Significant improvement opportunities. Start with Traditional SEO (0).
🎯 Top Fix: Allow GPTBot + ClaudeBot in robots.txt → lift the score cap
🔬 Automated SEODiff Assessment · Snapshot: Mar 19, 2026 · 📋 API
📈 ACRI Trend 8 snapshots
Feb 23 Mar 19
🔔 Recent AI Indexing Activity
🔄 Mar 16 Content change detected
📉 Mar 11 ACRI -11 (29→18)
Does your site score higher than mnhn.fr?
Run the same 40-signal audit on your own domain — free, instant results.
Scan Your Site Free →
🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)0 × 0.25 = 0.0
🤖 AI Readiness / GEO (40% weight)50 × 0.40 = 20.0
⚡ Performance (20% weight)80 × 0.20 = 16.0
🏗️ Architecture & Trust (15% weight)36 × 0.15 = 5.4
Weighted sum = 0.0 + 20.0 + 16.0 + 5.4
⚠️ Fatal multiplier: All major AI bots blocked → ×0.5
Global SEODiff Score = 29 (F)
🚫
Gatekeeper Rule: Score cannot exceed 15. Both GPTBot and ClaudeBot are blocked in robots.txt. No major AI assistant can cite this site. Allow at least one major AI crawler to lift the cap. See Bot Access →
📊 ACRI Sub-Scores (AI Readiness Detail)
20
Bot Access
avg 92
99
Rendering
avg 93
0
Structure
avg 35
0
Schema
avg 9
75
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 2%
Rank #24424
+80 pts
Gap
AI (ACRI)
Top 82%
Score 5/100

mnhn.fr punches above its weight in AI — AI visibility exceeds Google ranking. This is a competitive moat worth protecting. ACRI measures technical crawler readiness. Read the methodology →

Why mnhn.fr ranks here

Tech stackCloudflare Pages
RenderingSSR
Schema coverage0 blocks
Token bloat5.0×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • Allow ClaudeBot (many assistants rely on it) — blocking it often correlates with “AI invisibility.”
  • Add basic Organization and WebSite JSON-LD to fix “0 schema blocks” (see Schema Coverage).
  • Reduce token bloat (navigation/footer/code) so agents reach your main content faster (see Token Bloat).
  • Create an llms.txt file so AI crawlers can discover your content structure without heavy crawling. Generate llms.txt →
  • Run a full entropy audit to find which DOM regions waste the most tokens. Run Entropy Audit →
🧪

JavaScript Rendering Check

We check what AI crawlers miss when they skip JavaScript execution.

Running headless browser to simulate AI extraction…
🛡️

Traditional SEO

0/100 25 % of Global Score 🟡 Medium Confidence

📝 Title Tag

32 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

0 chars
Missing

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 3
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✗ Canonical tag present
  • ✗ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → en-US
  • ➖ Hreflang tags — N/A (single language site)
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✗ og:title
  • ✗ og:description
  • ✗ og:image
  • ✗ twitter:card
📐 How the SEO Pillar score is calculated

SEO Pillar = Title (20 pts) + Meta Desc (20 pts) + Heading Hierarchy (20 pts) + Indexability (20 pts) + Social/OG (20 pts)

Each sub-score is derived from the checks above. Canonical tag, lang attribute, og:image, and a single H1 are the highest-impact items.

🤖

AI Readiness / GEO

50/100 40 % of Global Score 🟡 Medium Confidence

This pillar aggregates citation share, hallucination risk, bot access, schema health, and content extractability. The individual diagnostic sections below contribute to this score.

🔗

Citation Alternatives

Research
💡
Insight: In the infrastructure sector, safely.co.jp (ACRI: 90) currently has stronger AI extractability. AI models tend to prefer sources with higher semantic structure and schema coverage. Domains with ACRI < 40 see 3.5× more hallucinations. Read the research →
mnhn.fr
18
Your ACRI Score
90
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. safely.co.jp has schema coverage of 3 blocks and uses WordPress. Improve your score by implementing the remediation patches below.
📊 Side-by-Side Comparison →
🚨

Hallucination Risk

Research

Is AI lying about your brand? This panel measures how likely LLMs are to hallucinate facts when extracting information from your page.

Analyzing hallucination risk…

🤖 Bot Access Matrix

GPTBot (OpenAI)
Blocked
ClaudeBot (Anthropic)
Blocked
CCBot (Common Crawl)
Blocked
Google-Extended
Blocked
Googlebot
Allowed
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.
💡ClaudeBot is blocked. To be cited by Claude, allow ClaudeBot in robots.txt.

👻 Rendering (Ghost Ratio) Docs

Ghost Ratio 5%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 0/100 — Poor
Structured Elements 0 elements (0 lists, 0 rows, 0 headers)
Total Words127
Raw Density0.0%
💡Low structure score (0/100). Your content appears as a wall of text with few structured HTML elements. You have 0 list items, 0 table rows, 0 table headers. Convert features into <ul> lists and data into <table> elements to help AI models extract structured information.

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks0 — No JSON-LD detected

Schema Coverage Map

0/7 schema types detected
❌ Organization
❌ Product/Service
❌ Breadcrumb
❌ FAQ
❌ Article
❌ WebSite
💡Organization schema missing. AI models cannot identify your brand entity. Without it, your brand won't appear in Knowledge Panels or be associated with your content.
💡Product / Service schema missing. AI models don't know this is a SaaS product. Add Product or SoftwareApplication schema so AI understands what you offer and can surface pricing/features.
💡BreadcrumbList schema missing. AI cannot understand your site hierarchy or how pages relate to each other.
💡FAQ schema missing. Adding FAQPage schema lets AI models directly extract Q&A pairs for Featured Snippets and chatbot answers.
💡WebSite schema missing. Add WebSite + SearchAction so Google can generate a Sitelinks Search Box for your brand in AI results.

📐 AI Efficiency Metrics Docs

45
AI Extractability
Low
Crawl Cost
Critical
Blocklist Risk
Extractability45/100 — AI models can partially extract answers from this page
Crawl CostLow (10/100) — efficient for AI crawlers to process
Blocklist RiskCritical — 4 of 5 AI crawlers blocked

Token Bloat Research

20%
🗑️ 80%
Useful Content (1.2 KB)Bloat (4.7 KB)
Token Bloat Ratio5.0× — Lean

Multimodal Readiness

Visual ContextNo images detected
Image Alt Coverage0 / 0 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 80.1% · SNR: 0.25 · Signal: 296 / Noise: 1195 tokens

🔬 AI-Crawler Simulation

See your website the way AI crawlers do. CSS stripped, structure labeled, content chunked.

🌐
This is what humans see — styled, branded, visual.
Toggle to "AI Agent View" to see what GPTBot, ClaudeBot, and other AI crawlers actually extract from this page.
🤖

AI Answer Preview

NEW

See how AI models summarize your site. Left: your actual content. Right: what the LLM extracts and says about you.

Simulating AI extraction…
🧠

The LLM Interpretation

AI-VERIFIED

SEODiff AI analyzed the extracted content of mnhn.fr and produced this structured business intelligence. Fields marked SEMANTIC VOID indicate information the AI could not find — a critical gap in your site’s machine-readability.

Core Offering
The Muséum National d’Histoire Naturelle (MNHN) showcases a collection of royal jewels from France’s history, tracing their journey from royal
Target Audience
History enthusiasts, gemologists, art historians, museum visitors, and those interested in French royal history and jewelry.
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Unique access to a historically significant collection of royal jewels, combined with scientific research and 3D simulations to illuminate their provenance and geological origins.
📊 Content Depth
8/10
🔄 Programmatic SEO Signals
Template comparison pages (for jewel types)Integration directory pages (for related museums and institutions)
⚡ Key Pain Points
• Thin landing pages for features
• Lack of structured FAQ schema
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

AI-Readiness Score75/100
Servercloudflare
CDNcloudflare
HTTP Status403
Load Time509 ms
Raw HTML Size5.8 KB
Visible Text Size1.2 KB

Performance & Speed

80/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

509 ms
Acceptable — room for improvement

Google considers <200 ms "good". AI crawlers may have even shorter timeouts.

📦 Page Weight

47
DOM nodes
6 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✓ Cache-Control header → private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
  • ✗ CDN cache status
  • ✓ CDN detected → cloudflare

🔬 Tracker Tax

0
tracker scripts
0
third-party domains
0.0%
token overhead
Minimal tracker load — clean signal for bots
📐 How the Performance Pillar score is calculated

Perf Pillar = TTFB (35 pts) + Page Weight (25 pts) + Cache/CDN (20 pts) + Tracker Tax (20 pts)

TTFB <200 ms = full marks. DOM >3000 or payload >300 KB incurs heavy penalties. Tracker scripts beyond 5 reduce score.

🏗️

Architecture & Trust

36/100 15 % of Global Score 🔴 Low Confidence

🗺️ Sitemap & Robots

  • ✗ Sitemap declared in robots.txt
  • ✓ Googlebot allowed
  • ✗ GPTBot allowed
  • ✗ ClaudeBot allowed

🔗 Linking

0
internal links
1
external links
Very few internal links — crawlers may miss important pages

🔒 Security & Trust

  • ✗ HSTS header (Strict-Transport-Security)
  • ✗ Content-Security-Policy header
  • ✗ HTTP status 200 OK (got 403)

♿ Accessibility Signals

  • ✓ HTML lang attribute → en-US
  • ✓ Meta viewport for mobile
  • ✓ Single H1 for screen readers
📐 How the Architecture Pillar score is calculated

Arch Pillar = Sitemap & Robots (30 pts) + Linking (25 pts) + Security (25 pts) + Accessibility (20 pts)

Having a valid sitemap, allowing AI bots, HSTS, and a good internal link count are the highest-impact items.

🏅 AI-Verified Trust Badge

Your site scores 18/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for mnhn.fr
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/mnhn.fr" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=mnhn.fr" alt="AI-Verified by SEODiff" width="280" height="52"></a>

💡 Paste in your site footer, GitHub README, or email signature. Badge updates automatically as your score changes.

� Deep Crawl Analysis 113 pages · Deep-10

Homepage ACRI
18
Single-page score
+48
Subpages outperform homepage
Δ delta
Site-Wide ACRI
67
Avg across 113 pages · Range 0–90
Topical Cohesion
2%
Topical Drift
TF-IDF cosine similarity
Total Words
132601
Avg Bloat
22.9×
Page Type ACRI Token Bloat Words Status
https://www.mnhn.fr/fr/les-escaliers-monumentaux-de-la-grande-galerie-de-l-evolution
Les escaliers monumentaux de la Grande Galerie de l'Évolution
pricing 90 7.9× 4547 💰 Pricing
https://www.mnhn.fr/fr/les-joyaux-du-museum
Les joyaux du Muséum | MNHN
pricing 90 8.3× 3129 💰 Pricing
https://www.mnhn.fr/fr/l-evolution-du-vivant
L’évolution du vivant | MNHN
pricing 90 6.6× 5605 💰 Pricing
https://www.mnhn.fr/fr/stars-d-hier-et-d-aujourd-hui-a-la-menagerie
Stars d'hier et d'aujourd'hui à la Ménagerie | MNHN
pricing 90 8.1× 5826 💰 Pricing
https://www.mnhn.fr/fr/le-corps-humain-terrain-de-toute-une-biodiversite
Le corps humain, terrain de toute une biodiversité !
pricing 80 13.2× 1831 💰 Pricing
https://www.mnhn.fr/fr/qu-est-ce-qu-une-orchidee
Qu'est-ce qu'une orchidée ? | MNHN
pricing 80 12.5× 2140 💰 Pricing
https://www.mnhn.fr/fr/neandertal-enterrait-ses-morts
Néandertal enterrait ses morts | MNHN
pricing 80 14.0× 1445 💰 Pricing
https://www.mnhn.fr/fr/coronavirus-quels-risques-pour-les-autres-animaux
Coronavirus : quels risques pour les autres animaux ?
pricing 80 12.1× 2147 💰 Pricing
https://www.mnhn.fr/fr/le-museum-face-aux-enjeux-climatiques
Le Muséum face au réchauffement climatique | MNHN
pricing 80 12.6× 2144 💰 Pricing
https://www.mnhn.fr/fr/la-conservation-des-collections-de-zoologie
La conservation des collections de zoologie | MNHN
pricing 80 15.7× 1541 💰 Pricing
https://www.mnhn.fr/fr/le-declin-des-insectes-pollinisateurs
Le déclin des insectes pollinisateurs | MNHN
pricing 80 14.1× 1911 💰 Pricing
https://www.mnhn.fr/fr/77-milliards-d-humains-en-2019-sommes-nous-trop-nombreux-sur-terre
7,7 milliards d’humains en 2019 : sommes-nous trop nombreux sur Terre ?
pricing 80 13.1× 1725 💰 Pricing
https://www.mnhn.fr/fr/les-forets-tropicales-leur-role-pour-le-climat-et-la-biodiversite
Les forêts tropicales : leur rôle pour le climat et la biodiversité
pricing 80 13.5× 2148 💰 Pricing
https://www.mnhn.fr/fr/l-art-est-il-ne-dans-une-grotte
L'art est-il né dans une grotte ? | MNHN
pricing 80 15.0× 1523 💰 Pricing
https://www.mnhn.fr/fr/qu-est-ce-qu-une-meteorite
Qu’est-ce qu’une météorite ? Qu’est-ce qu’un météore ?
pricing 80 14.6× 1628 💰 Pricing
https://www.mnhn.fr/fr/microforets-urbaines-que-penser-de-la-methode-miyawaki
Microforêts urbaines : que penser de la « méthode Miyawaki » ?
pricing 80 10.4× 2220 💰 Pricing
https://www.mnhn.fr/en/responsible-travel
Tourisme durable, comment voyager écolo ? | MNHN
pricing 80 12.5× 1807 💰 Pricing
https://www.mnhn.fr/fr/voyager-responsable
Tourisme durable, comment voyager écolo ? | MNHN
pricing 80 14.3× 1922 💰 Pricing
https://www.mnhn.fr/fr/quelle-place-pour-la-nature-en-ville
Quelle place pour la nature en ville ? | MNHN
pricing 80 12.7× 2157 💰 Pricing
https://www.mnhn.fr/fr/dix-anecdotes-sur-le-monde-vivant
Dix anecdotes sur le monde vivant | MNHN
pricing 77 16.1× 1401 💰 Pricing
Showing 20 of 100 pages. Unlock full subpage table →
📂
Health by Sub-Directory
Average ACRI and top issues aggregated by URL path prefix
Path Pages Avg ACRI Ghost % Bloat Top Issue
/fr/ 98 73 0% 24.7× High JS Bloat
/en/ 6 68 0% 29.2× High JS Bloat
/blog/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/features/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 0 0% 0.0× Low AI Readiness
/integrations/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/about/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 113 pages
soutenir.mnhn.fr ×104
instagram.com ×104
reseauculture.fr ×104
fr-fr.facebook.com ×104
billetterie.mnhn.fr ×104
youtube.com ×104
linkedin.com ×103
bsky.app ×103
🔄 Re-Crawl & Update 📡 Track this Domain

Scores update automatically each month. Create a free account for on-demand re-crawls (3/month free).

🔌 API Access

Pull this data programmatically. All sub-page metrics are available via our public API.

curl https://seodiff.io/api/v1/deep10/domain/mnhn.fr

Get your free API key — 100 requests/month included.

🔗 Similar infrastructure Sites

Domains with a similar tech stack, industry, and AI readiness profile to mnhn.fr. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
mnhn.fr (this site) 18 5 Cloudflare Pages 5.0× 0
lifeschronicles.co.uk 43 15 Cloudflare Pages 3.7× 0 Compare →
versebookie.com 43 15 Cloudflare Pages 3.1× 0 Compare →
olxdes.com 43 67 Cloudflare Pages 7.4× 0 Compare →
hackgamevip.com 43 67 Cloudflare Pages 2.6× 0 Compare →
onextour.bg 43 15 Cloudflare Pages 2.5× 0 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite mnhn.fr when users ask about topics in this domain's niche? We run entity queries through our 188k-page search index and measure citation probability.

Analyzing citation landscape…

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to mnhn.fr. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

Add Organization JSON-LD
High Impact ⏱ 5 min
AI models cannot identify your brand entity without Organization schema. This is the #1 fix for AI visibility.
html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Mnhn",
  "url": "https://mnhn.fr",
  "logo": "https://mnhn.fr/logo.png",
  "sameAs": []
}
</script>
Add WebSite + SearchAction JSON-LD
High Impact ⏱ 5 min
Enables the Sitelinks Search Box in Google and allows AI to understand your site structure.
html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "Mnhn",
  "url": "https://mnhn.fr",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://mnhn.fr/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Allow GPTBot in robots.txt
High Impact ⏱ 2 min
GPTBot is blocked — your content cannot appear in ChatGPT citations. Add this to your robots.txt:
text
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /
Allow ClaudeBot in robots.txt
Medium Impact ⏱ 2 min
ClaudeBot is restricted — Claude may not be able to cite your content. Many AI assistants rely on it.
text
User-agent: ClaudeBot
Allow: /

User-agent: anthropic-ai
Allow: /
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for mnhn.fr:

Current Score
5
Projected Score
31
Improvement
+26 pts
Allow GPTBot +8 pts
Allow ClaudeBot +5 pts
Add Organization schema +6 pts
Add WebSite schema +4 pts
Reduce token bloat +3 pts

*Estimates based on SEODiff's scoring model. Actual results depend on implementation quality.

📋 Data Export

Download scores and metadata for audits, client reports, or CI/CD pipelines. Exports contain computed metrics only (no copyrighted content).

All data is generated automatically and updated with each crawl. JSON exports contain scores and metadata only (no copyrighted content).

Is this your company?

Monitor your AI visibility score weekly and get alerted when changes happen.

Start Free →

🧭 Self-Diffing (Private Layer)

For owned domains, combine this world snapshot with private drift + regression history.
Template Drift
Track in My Site
Drift → Traffic Impact
In development coming soon
Regression Incidents
Track in My Site
Internal Linking
Deep Audit graph
Semantic Structure
GEO view in Deep Audit
Content Quality
Thin/duplicate tracking

🕒 History

Score over timeAvailable in My Site history
Drift eventsTemplate timeline + incidents
Drift → Revenue AttributionComing soon
Schema/rendering/extractability changesTracked per scan in project history
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
Free Deep Audit → GSC Error Guide →