uu.nl 61 C
🛡️ SEO 46 🤖 GEO 70 ⚡ Perf 55 🏗️ Arch 71

uu.nl — Global SEODiff Score 61/100

uu.nl
📊

With a solid 78/100 ACRI, uu.nl is well-positioned for AI search — better than 88% of sites in the Radar. The low ghost ratio (0%) confirms that what crawlers see matches what users see — a hallmark of strong SSR implementation. The 13.5× token bloat ratio falls within the normal range, though there is room to trim navigation, footer, and script overhead. 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 bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

61
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (46) is your bottleneck.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Feb 28, 2026 · 📋 API
📈 ACRI Trend 8 snapshots
Feb 23 Feb 28
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than uu.nl?
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)46 × 0.25 = 11.5
🤖 AI Readiness / GEO (40% weight)70 × 0.40 = 28.0
⚡ Performance (20% weight)55 × 0.20 = 11.0
🏗️ Architecture & Trust (15% weight)71 × 0.15 = 10.7
Weighted sum = 11.5 + 28.0 + 11.0 + 10.7
Global SEODiff Score = 61 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
82
Structure
avg 36
0
Schema
avg 9
70
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.5%
Rank #4670
+12 pts
Gap
AI (ACRI)
Top 12%
Score 78/100

uu.nl shows stronger AI visibility than traditional SEO ranking. Great AI foundation to build on. ACRI measures technical crawler readiness. Read the methodology →

Why uu.nl ranks here

Tech stackDrupal
Industry
RenderingSSR
Schema coverage0 blocks
Token bloat13.5×

Fastest improvements

  • 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

46/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

56 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

150 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 7
  • ✗ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.uu.nl/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → nl
  • ✓ Hreflang tags
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — Universiteit Utrecht | Sharing science, shaping tomorrow
  • ✓ og:description — De Universiteit Utrecht is een internationaal vooraanstaande onderzoeksuniversiteit waar studenten en onderzoekers samen werken aan een betere wereld.
  • ✓ og:image — preview
  • ✗ 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

70/100 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.

🚨

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 82/100 — Excellent
Structured Elements 62 elements (62 lists, 0 rows, 0 headers)
Total Words310
Raw Density20.0%

🏷️ 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

57
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability57/100 — AI models can partially extract answers from this page
Crawl CostLow (10/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

7%
🗑️ 93%
Useful Content (2.8 KB)Bloat (35.2 KB)
Token Bloat Ratio13.5× — Normal

Multimodal Readiness

Visual Context50% Optimized for Vision
Image Alt Coverage3 / 6 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: 92.6% · SNR: 0.08 · Signal: 721 / Noise: 9005 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

A local LLM (mlx-community/gemma-3-4b-it-qat-4bit) analyzed the extracted content of uu.nl 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
Meet the Professor 2021 facilitated a virtual meeting between Utrecht University professors and primary school students, fostering engagement and learning
Target Audience
Primary school students (grades 6-8), Utrecht University professors, teachers in primary schools.
Pricing Model
⚠ SEMANTIC VOID
🔗 Integration Partners
MentimeterZoom
🏆 Competitive Moat
Unique virtual engagement platform connecting professors and students, fostering curiosity and learning through interactive activities and personalized experiences.
📊 Content Depth
6/10
🔄 Programmatic SEO Signals
Golden envelope hintsBreakout room discussionsProfessor profiles
⚡ Key Pain Points
• Limited time for virtual sessions (as noted by some teachers)
• Need for more structured engagement beyond simple Q&A
Model: mlx-community/gemma-3-4b-it-qat-4bit · Analyzed: 2026-02-28 · Data extracted from the site’s main content via strict JSON prompting.

🔧 Tech Stack

FrameworkDrupal
AI-Readiness Score70/100
ServerApache
CDN
HTTP Status200
Load Time2245 ms
Raw HTML Size38.0 KB
Visible Text Size2.8 KB

Performance & Speed

55/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

2245 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

437
DOM nodes
38 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=31536000, public
  • ✗ 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

71/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

58
internal links
6
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 → nl
  • ✓ 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 52/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for uu.nl
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/uu.nl" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=uu.nl" 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 1002 pages · Deep-10

Homepage ACRI
52
Single-page score
-3
Consistent readability
Δ delta
Site-Wide ACRI
50
Avg across 1002 pages · Range 26–87
Topical Cohesion
7%
Topical Drift
TF-IDF cosine similarity
Total Words
414086
Avg Bloat
37.8×
RAG Fractures [?]
90
⚠️
90 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 90 pages will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page Type ACRI Token Bloat Words Status
https://www.uu.nl/en/research/self-regulation-lab/news-events-media/blog
Blog - Self-Regulation Lab - Utrecht University
pricing 87 1.9× 14802 💰 Pricing
https://www.uu.nl/onderzoek/empirical-research-into-institutions-for-conflict-resolution-eri/team
Team - Empirical Research into Institutions for conflict resolution (ERI) - Universiteit Utrecht
pricing 82 3.3× 5092 💰 Pricing
https://www.uu.nl/en/masters/history-and-philosophy-science/get-to-know/testimonials
Testimonials - History and Philosophy of Science - Utrecht University
pricing 82 4.6× 2055 💰 Pricing
https://www.uu.nl/masters/nederlandse-literatuur-en-cultuur/maak-kennis-met/testimonials
Testimonials - Nederlandse literatuur en cultuur - Universiteit Utrecht
pricing 82 4.3× 2312 💰 Pricing
https://www.uu.nl/en/bachelors/college-pharmaceutical-sciences/experience-the-programme/testimonials
Testimonials - College of Pharmaceutical Sciences - Utrecht University
pricing 82 4.8× 1873 💰 Pricing
https://www.uu.nl/en/masters/comparative-literary-studies/get-to-know/testimonials
Testimonials - Comparative Literary Studies - Utrecht University
pricing 82 4.8× 1986 💰 Pricing
https://www.uu.nl/masters/meertaligheid-en-taalverwerving/maak-kennis-met/testimonials
Testimonials - Meertaligheid en taalverwerving - Universiteit Utrecht
pricing 82 4.7× 2082 💰 Pricing
https://www.uu.nl/masters/cultuurgeschiedenis-en-erfgoed/maak-kennis-met-de-master/testimonials
Testimonials - Cultuurgeschiedenis en erfgoed - Universiteit Utrecht
pricing 82 4.9× 1947 💰 Pricing
https://www.uu.nl/masters/vertaalwetenschap/maak-kennis-met-de-master/testimonials
Testimonials - Vertaalwetenschap - Universiteit Utrecht
pricing 82 4.9× 1943 💰 Pricing
https://www.uu.nl/masters/leraar-voorbereidend-hoger-onderwijs/maak-kennis-met/testimonials
Testimonials - Leraar voorbereidend hoger onderwijs - Universiteit Utrecht
pricing 82 3.1× 4161 💰 Pricing
https://www.uu.nl/en/masters/theoretical-physics/get-to-know/testimonials
Testimonials - Theoretical Physics - Utrecht University
pricing 82 5.0× 1711 💰 Pricing
https://www.uu.nl/en/masters/sociology-contemporary-social-problems/get-to-know/testimonials
Testimonials - Sociology: Contemporary Social Problems - Utrecht University
pricing 82 4.9× 1893 💰 Pricing
https://www.uu.nl/organisatie/apotheek-diergeneeskunde/faq
FAQ: meest gestelde vragen - Apotheek Diergeneeskunde - Universiteit Utrecht
pricing 82 2.9× 9167 💰 Pricing
https://www.uu.nl/organisatie/publiekenwetenschap/contact/vacatures
Vacatures - Publiek en wetenschap - Universiteit Utrecht
pricing 82 3.5× 2664 💰 Pricing
https://www.uu.nl/en/research/research-data-management/guides/storing-and-preserving-data
Storing data during Research - Research Data Management Support - Utrecht University
pricing 77 6.1× 2535 💰 Pricing
https://www.uu.nl/en/research/research-data-management/guides/legal-instruments-and-agreements
Legal instruments and agreements - Research Data Management Support - Utrecht University
pricing 77 8.5× 1527 💰 Pricing
https://www.uu.nl/en/research/research-data-management/guides/costs-of-data-management
Costs of data management - Research Data Management Support - Utrecht University
pricing 77 8.9× 1459 ⚠️ RAG Fracture
https://www.uu.nl/en/research/research-data-management/guides/publishing-and-sharing-data
Publishing and sharing data - Research Data Management Support - Utrecht University
pricing 77 6.7× 2016 💰 Pricing
https://www.uu.nl/en/organisation/meet-the-professor/about/meet-the-professor-2021
Looking back on Meet the Professor 2021 - Meet the Professor - Utrecht University
pricing 77 9.2× 712 💰 Pricing
https://www.uu.nl/en/organisation/public-engagement-at-utrecht-university/how-to-engage/resources
Resources on public engagement - Public engagement at Utrecht University - Utrecht University
pricing 77 8.5× 893 💰 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
/en/ 354 63 0% 17.7× High JS Bloat
/masters/ 71 64 0% 16.9× High JS Bloat
/organisatie/ 31 56 0% 23.1× High JS Bloat
/onderzoek/ 21 63 0% 17.6× High JS Bloat
/bachelors/ 11 52 0% 23.7× High JS Bloat
/onderwijs/ 7 54 0% 33.4× High JS Bloat
/utrecht-centre-for-water-oceans-and-sustainability-law/ 1 49 0% 34.4× High JS Bloat
/contact/ 1 62 0% 25.9× High JS Bloat
/blog/ 1 57 0% 13.7× High JS Bloat
/uvdl/ 1 49 0% 22.6× High JS Bloat
/botanischetuinen/ 1 49 0% 40.0× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 1002 pages
youtube.com ×1001
facebook.com ×1001
cursusplanner.uu.nl ×1001
linkedin.com ×1001
mytimetable.uu.nl ×1001
instagram.com ×1001
students.uu.nl ×1001
intranet.uu.nl ×1001
🔄 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/uu.nl

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

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
uu.nl (this site) 52 78 Drupal 13.5× 0
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🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to uu.nl. 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": "Uu",
  "url": "https://uu.nl",
  "logo": "https://uu.nl/themes/custom/corp/src/images/favicons/apple-touch-icon.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": "Uu",
  "url": "https://uu.nl",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://uu.nl/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 7% of your HTML is useful content. AI crawlers waste context window tokens on bloat.
html
<!-- Move inline CSS to external stylesheets -->
<link rel="stylesheet" href="/css/main.css">

<!-- Move inline scripts to external files with defer -->
<script src="/js/app.js" defer></script>

<!-- Remove duplicate navigation blocks -->
<!-- Keep only ONE <nav> in the <header> -->

<!-- Ensure <main> wraps your primary content -->
<main>
  <!-- Your content here — this is what AI sees first -->
</main>
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 Uu?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Uu does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Uu work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Uu."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for uu.nl:

Current Score
78
Projected Score
96
Improvement
+18 pts
Add Organization schema +6 pts
Add WebSite schema +4 pts
Reduce token bloat +5 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