univ-lorraine.fr 63 C
🛡️ SEO 75 🤖 GEO 76 ⚡ Perf 16 🏗️ Arch 69

univ-lorraine.fr — Global SEODiff Score 63/100

univ-lorraine.fr
📊

univ-lorraine.fr achieves a 77/100 on the AI-Crawler Reality Index, reflecting above-average readiness for AI-driven discovery. Within the social vertical, this places univ-lorraine.fr above the industry average of 57 —, suggesting strong competitive positioning in AI search. Its server-rendered architecture ensures AI crawlers receive complete HTML on first request, a key advantage for extractability. The 5.8× token bloat ratio falls within the normal range, though there is room to trim navigation, footer, and script overhead. Only 1 schema block is present — adding Organization, WebSite, and Breadcrumb schemas would significantly improve structured data coverage. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

63
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (16) is your bottleneck.
🎯 Top Fix: Add HSTS header → +2 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 19, 2026 · 📋 API
📈 ACRI Trend 4 snapshots
Mar 4 Mar 19
🔔 Recent AI Indexing Activity
🔄 Mar 19 Content change detected
🔄 Mar 14 Content change detected
Does your site score higher than univ-lorraine.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)75 × 0.25 = 18.8
🤖 AI Readiness / GEO (40% weight)76 × 0.40 = 30.4
⚡ Performance (20% weight)16 × 0.20 = 3.2
🏗️ Architecture & Trust (15% weight)69 × 0.15 = 10.3
Weighted sum = 18.8 + 30.4 + 3.2 + 10.3
Global SEODiff Score = 63 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
38
Structure
avg 35
42
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 2%
Rank #20968
+12 pts
Gap
AI (ACRI)
Top 14%
Score 77/100

univ-lorraine.fr shows stronger AI visibility than traditional SEO ranking. Great AI foundation to build on. ACRI measures technical crawler readiness. Read the methodology →

Why univ-lorraine.fr ranks here

Tech stackWordPress
Industrysocial
RenderingSSR
Schema coverage1 blocks
Token bloat5.8×

Fastest improvements

  • 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

75/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

33 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

128 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 32
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.univ-lorraine.fr/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → fr-FR
  • ✅ Hreflang tags
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — Accueil - Université de Lorraine
  • ✓ og:description — L'Université de Lorraine couvre tous les domaines scientifiques, pour innover et accompagner les évolutions de notre société
  • ✓ og:image — preview
  • ✓ twitter:card — summary_large_image
📐 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

76/100 40 % of Global Score 🟢 High 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 social sector, martin-sad.ru (ACRI: 87) 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 →
univ-lorraine.fr
59
Your ACRI Score
87
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. martin-sad.ru has schema coverage of 63 blocks and uses Custom / Proprietary. 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)
Allowed
ClaudeBot (Anthropic)
Allowed
CCBot (Common Crawl)
Allowed
Google-Extended
Allowed
Googlebot
Allowed

👻 Rendering (Ghost Ratio) Docs

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

📊 Structure & Information Density Docs

Structure Grade 38/100 — Low
Structured Elements 406 elements (406 lists, 0 rows, 0 headers)
Total Words9559
Raw Density4.2%
💡Low structure score (38/100). Your content appears as a wall of text with few structured HTML elements. You have 406 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 ✅ Present
Product / Service Schema ⚠️ Not Found
Total Schema Blocks1 block(s) — Basic (low value for AI)

Schema Coverage Map

3/7 schema types detected
✅ Organization
❌ Product/Service
✅ Breadcrumb
❌ FAQ
❌ Article
✅ WebSite
💡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.
💡FAQ schema missing. Adding FAQPage schema lets AI models directly extract Q&A pairs for Featured Snippets and chatbot answers.

📐 AI Efficiency Metrics Docs

64
AI Extractability
High
Crawl Cost
None
Blocklist Risk
Extractability64/100 — AI models can partially extract answers from this page
Crawl CostHigh (70/100) — expensive for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

17%
🗑️ 83%
Useful Content (101.2 KB)Bloat (487.6 KB)
Token Bloat Ratio5.8× — Normal

Multimodal Readiness

Visual Context13% Optimized for Vision
Image Alt Coverage13 / 98 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 13% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 82.8% · SNR: 0.21 · Signal: 25900 / Noise: 124836 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 univ-lorraine.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
This website is the official portal for the University of Lorraine, providing information on programs, research, events, and resources for
Target Audience
Students (undergraduate and graduate), faculty, researchers, staff, alumni, prospective students, and the general public interested in the University of Lorraine.
Pricing Model
⚠ SEMANTIC VOID
🔗 Integration Partners
FactuelMonmasterDiscordBlueskyThreadFacebookLinkedinInstagram
🏆 Competitive Moat
Comprehensive university portal with a strong focus on research and regional impact, offering a wide range of programs and resources, and a dedicated platform for alumni engagement.
📊 Content Depth
8/10
🔄 Programmatic SEO Signals
Template comparison pages (e.g., CPU GT)Integration directory pages (e.g., Factuel)Search functionality for programs and research
⚡ Key Pain Points
• Thin landing pages for features
• Lack of structured FAQ schema
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
ServerApache
CDN
HTTP Status200
Load Time2338 ms
Raw HTML Size588.8 KB
Visible Text Size101.2 KB

Performance & Speed

16/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

2338 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

3581
DOM nodes
589 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=3, must-revalidate
  • ✗ CDN cache status
  • ✗ CDN detected

🔬 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

69/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.univ-lorraine.fr/sitemap_index.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

405
internal links
32
external links
Good internal linking — helps crawlers discover content

🔒 Security & Trust

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

♿ Accessibility Signals

  • ✓ HTML lang attribute → fr-FR
  • ✓ 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 59/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for univ-lorraine.fr
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/univ-lorraine.fr" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=univ-lorraine.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 107 pages · Deep-10

Homepage ACRI
59
Single-page score
+20
Subpages outperform homepage
Δ delta
Site-Wide ACRI
80
Avg across 107 pages · Range 77–80
Topical Cohesion
20%
Topical Drift
TF-IDF cosine similarity
Total Words
676770
Avg Bloat
16.6×
Page Type ACRI Token Bloat Words Status
https://www.univ-lorraine.fr/blog/factuel-contenu/retour-sur-exploration-pedagogique-la-visite-deleves-de-cm2-a-lenstib/
[Retour sur] « Exploration pédagogique : la visite d’élèves de CM2 à l’ENSTIB » - Université de Lorraine
pricing 80 16.5× 6241 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/en-video-connectez-vous-a-luciole-le-magazine-du-numerique-responsable/
[En vidéo] Connectez-vous à Luciole, le magazine du numérique responsable ! - Université de Lorraine
pricing 80 16.6× 6224 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/cap-sur-lenseignement-superieur-une-etape-cle-dans-le-processus-dorientation-des-lyceens/
Cap sur l’enseignement supérieur : une étape clé dans le processus d’orientation des lycéens ! - Université de Lorraine
pricing 80 16.4× 6288 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/journee-detude-cerefige-lis-idea-la-marque-et-le-territoire/
[Journée d'Étude CEREFIGE/LIS/IDEA] La Marque et Le Territoire - Université de Lorraine
pricing 80 16.5× 6241 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/le-salon-apprentissage-alternance-et-metiers/
Le Salon apprentissage, alternance et métiers - Université de Lorraine
pricing 80 16.5× 6243 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/portrait-rencontre-avec-herve-kempf-chercheur-inserm-au-laboratoire-imopa/
[Portrait] Rencontre avec Hervé Kempf, chercheur Inserm au laboratoire IMoPA - Université de Lorraine
pricing 80 16.5× 6252 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/gouter-scientifique-tout-le-monde-naime-pas-les-jeux-paralympiques/
[Gouter-scientifique] Tout le monde n'aime pas les jeux paralympiques - Université de Lorraine
pricing 80 16.5× 6249 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/orion-challenge-les-etudiants-a-liut-charlemagne/
ORION challenge les étudiants à l'IUT Charlemagne ! - Université de Lorraine
pricing 80 16.6× 6228 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/faire-vivre-lantiquite-entre-art-et-poesie-spectacle-minos/
Faire vivre l’Antiquité, entre art et poésie : spectacle Minos. - Université de Lorraine
pricing 80 16.5× 6271 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/job-fair-projet-etudiant-de-lassociation-du-master-1-de-droit-des-affaires-de-nancy/
[JOB FAIR] Projet étudiant de l'Association du Master 1 de Droit des Affaires de Nancy - Université de Lorraine
pricing 80 16.5× 6273 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/mines-nancy-vous-invite-a-la-conference-croissance-inflation-chomage-quelle-strategie-pour-la-france-avec-jean-marc-daniel-economiste-francais/
Mines Nancy vous invite à la conférence « Croissance, inflation, chômage : quelle stratégie pour la France ? » avec Jean-Marc Daniel, économiste français. - Université de Lorraine
pricing 80 16.5× 6295 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/conference-limage-des-femmes-lorraines-dans-larmorial-dhozier-1696/
[Conférence] L’image des femmes lorraines dans l’Armorial d’Hozier (1696) - Université de Lorraine
pricing 80 16.5× 6260 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/remise-du-prix-emeritus/
Remise du Prix Emeritus - Université de Lorraine
pricing 80 16.4× 6269 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/lul-by-lola-etudiante-en-techniques-de-commercialisation-a-liut-de-metz/
L’UL BY Lola, étudiante en Techniques de Commercialisation à l’IUT de Metz - Université de Lorraine
pricing 80 16.5× 6264 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/conf-les-plantes-ont-elles-des-droits/
[CONF] LES PLANTES ONT-ELLES DES DROITS ? - Université de Lorraine
pricing 80 16.4× 6281 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/luniversite-de-lorraine-au-forum-europeen-sur-la-cybersecurite-incyber/
L’Université de Lorraine au Forum européen sur la cybersécurité INCYBER - Université de Lorraine
pricing 80 16.5× 6277 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/conf-tresor-vegetal/
[CONF] TRESOR VEGETAL - Université de Lorraine
pricing 80 16.5× 6250 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/accord-national-de-lecture-et-de-publication-avec-elsevier-pour-le-meilleur-et-pour-le-pire/
Accord national de lecture et de publication avec Elsevier : pour le meilleur et pour le pire ? - Université de Lorraine
pricing 80 16.5× 6268 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/conference-antiquipop-sombre-apollon-lharmonie-grecque-apres-me-too-a-la-bu-lettres-shs/
[Conférence Antiquipop] "Sombre Apollon : l’harmonie grecque après me too" à la BU Lettres & SHS - Université de Lorraine
pricing 80 16.5× 6253 💰 Pricing
https://www.univ-lorraine.fr/blog/factuel-contenu/rencontre-litteraire-ancius-m-murray-a-la-bibliotheque-americaine-de-nancy/
[Rencontre littéraire] Ancius M. Murray à la Bibliothèque américaine de Nancy - Université de Lorraine
pricing 80 16.5× 6284 💰 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
/blog/ 98 80 0% 16.5× High JS Bloat
/contact/ 1 77 0% 17.4× High JS Bloat
/faq/ 1 77 0% 17.4× High JS Bloat
/integrations/ 1 77 0% 17.4× High JS Bloat
/products/ 1 77 0% 17.4× High JS Bloat
/about/ 1 77 0% 17.4× High JS Bloat
/docs/ 1 77 0% 17.4× High JS Bloat
/pricing/ 1 77 0% 17.4× High JS Bloat
/features/ 1 77 0% 17.4× High JS Bloat
/case-studies/ 1 77 0% 17.4× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 107 pages
annuaire-web.univ-lorraine.fr ×107
arche.univ-lorraine.fr ×107
univ-lorraine.jobteaser.com ×107
sport.univ-lorraine.fr ×107
u2l.fr ×107
etudiant.gouv.fr ×107
ecandidat.univ-lorraine.fr ×107
multi.univ-lorraine.fr ×107
🔄 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/univ-lorraine.fr

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

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📊 Semantic Share of Voice

How often would an AI cite univ-lorraine.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 univ-lorraine.fr. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

Add FAQ Schema
Medium Impact ⏱ 10 min
FAQ schema lets AI models directly extract Q&A pairs. This is the easiest way to get featured in AI responses.
html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "What is Univ-lorraine?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Univ-lorraine does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Univ-lorraine work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Univ-lorraine."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
77
Projected Score
83
Improvement
+6 pts
Reduce token bloat +3 pts
Add FAQ schema +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).

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🧭 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
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