tudelft.nl 73 B
🛡️ SEO 59 🤖 GEO 84 ⚡ Perf 59 🏗️ Arch 83

tudelft.nl — Global SEODiff Score 73/100

tudelft.nl
📊

tudelft.nl shows strong AI visibility with an ACRI of 73/100, outperforming 75% of indexed domains. Within the education vertical, this places tudelft.nl above the industry average of 57 —, suggesting strong competitive positioning in AI search. Content is delivered server-side, meaning bots and AI agents can parse the full page without executing JavaScript. A tight 3.5× token bloat ratio reflects disciplined markup: minimal noise between the crawler and the content it needs. The site includes 2 schema blocks, providing adequate structured data for basic entity recognition. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

73
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (59) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 15, 2026 · 📋 API
📈 ACRI Trend 29 snapshots
Feb 22 Mar 15
🔔 Recent AI Indexing Activity
📉 Mar 15 ACRI -1 (67→66)
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)59 × 0.25 = 14.8
🤖 AI Readiness / GEO (40% weight)84 × 0.40 = 33.6
⚡ Performance (20% weight)59 × 0.20 = 11.8
🏗️ Architecture & Trust (15% weight)83 × 0.15 = 12.4
Weighted sum = 14.8 + 33.6 + 11.8 + 12.4
Global SEODiff Score = 73 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
58
Structure
avg 35
4
Schema
avg 9
60
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.6%
Rank #6117
+25 pts
Gap
AI (ACRI)
Top 25%
Score 73/100

tudelft.nl 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 tudelft.nl ranks here

Tech stackTYPO3
Industryeducation
RenderingSSR
Schema coverage2 blocks
Token bloat3.5×

Fastest improvements

  • You’re already in decent shape — the next moat is monitoring drift over time.
  • 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

59/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

69 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

347 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 13
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — TU Delft
  • ✓ og:description — Top onderwijs- en onderzoek staan centraal bij de oudste en grootste technische universiteit van Nederland. Onze 8 faculteiten bieden 16 bachelor- en meer dan 30 masteropleidingen. Onze ruim 25.000 studenten en 6.000 medewerkers delen een fascinatie voor wetenschap, design en techniek. Onze gezamenlijk missie: impact voor een betere samenleving.
  • ✓ og:image — preview
  • ✓ twitter:card — summary
📐 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

84/100 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 education sector, melbourneschool.com (ACRI: 86) 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 →
tudelft.nl
66
Your ACRI Score
86
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. melbourneschool.com has schema coverage of 4 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 58/100 — Fair
Structured Elements 117 elements (117 lists, 0 rows, 0 headers)
Total Words1154
Raw Density10.1%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks2 block(s) — Basic (low value for AI)

Schema Coverage Map

2/7 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.
💡FAQ schema missing. Adding FAQPage schema lets AI models directly extract Q&A pairs for Featured Snippets and chatbot answers.

📐 AI Efficiency Metrics Docs

63
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability63/100 — AI models can partially extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

28%
🗑️ 72%
Useful Content (52.1 KB)Bloat (129.5 KB)
Token Bloat Ratio3.5× — Lean

Multimodal Readiness

Visual Context0% Optimized for Vision
Image Alt Coverage0 / 27 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 0% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

38 Entropy
Poor Token Bloat: High
Noise Ratio: 71.3% · SNR: 0.40 · Signal: 13330 / Noise: 33157 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 tudelft.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
TPM Graduate School at TU Delft offers doctoral candidates a stimulating environment for obtaining a doctoral degree, providing support in
Target Audience
PhD candidates, researchers, doctoral students, academic professionals
Pricing Model
Tuition fee: €11,000 (one-time), Bench fee: €10,000 per year. External funding options available.
🔗 Integration Partners
SlackGitHubJira
🏆 Competitive Moat
AI-powered sprint planning with real-time resource optimization and a focus on structured project management.
📊 Content Depth
7/10
🔄 Programmatic SEO Signals
‘Current PhD Candidates (login)’ page‘Vacancies at TPM TU Delft Graduate School’ page‘Admission’ page‘English language requirement’ page‘Fees & Funding’ page
⚡ Key Pain Points
• Lack of structured FAQ schema
• Thin landing pages for features
• Complex application process with English proficiency testing
Analyzed by SEODiff AI · 2026-02-28

🔧 Tech Stack

FrameworkTYPO3
AI-Readiness Score60/100
Server
CDN
HTTP Status200
Load Time772 ms
Raw HTML Size181.6 KB
Visible Text Size52.1 KB

Performance & Speed

59/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

772 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

902
DOM nodes
182 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → no-cache
  • ✗ 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

83/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.tudelft.nl/sitemap.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

151
internal links
12
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 66/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for tudelft.nl
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/tudelft.nl" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=tudelft.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 221 pages · Deep-10

Homepage ACRI
66
Single-page score
-13
Moderate hidden bloat
Δ delta
Site-Wide ACRI
53
Avg across 221 pages · Range 0–72
🔍
Hidden Bloat Detected

Homepage scores 66, but internal pages average only 53 — a -13-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
12%
Topical Drift
TF-IDF cosine similarity
Total Words
110602
Avg Bloat
109.5×
RAG Fractures [?]
5
⚠️
5 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 5 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.tudelft.nl/lr/climprop
ClimProp
pricing 72 15.4× 1503 💰 Pricing
https://www.tudelft.nl/lr
Luchtvaart- en Ruimtevaarttechniek
pricing 72 18.1× 2834 💰 Pricing
https://www.tudelft.nl/tbm/onderwijs/moshe
Post-master Management of Safety, Health & Environment (MoSHE)
other 72 19.6× 1718
https://www.tudelft.nl/lr/laser-satellite-communications
Laser Satellite Communications
pricing 72 18.5× 1612 💰 Pricing
https://www.tudelft.nl/tbm/onderzoek/tpm-graduate-school
TPM Graduate School - Delft University of Technology
pricing 72 19.7× 1410 💰 Pricing
https://www.tudelft.nl/ai/aidrolab
TU Delft AI Lab: AidroLab
pricing 72 19.4× 2526 💰 Pricing
https://www.tudelft.nl/campus-den-haag
TU Delft | Campus Den Haag
pricing 67 28.6× 983 💰 Pricing
https://www.tudelft.nl/health-care
TU Delft | Delft Health Initiative
pricing 67 26.2× 1197 💰 Pricing
https://www.tudelft.nl/lr/clear-sky-revolution
TU Delft - Clear Sky Revolution
pricing 67 28.0× 1234 💰 Pricing
https://www.tudelft.nl/ai/aiman-lab
TU Delft AI Lab: AI*MAN Lab
pricing 67 29.9× 1140 💰 Pricing
https://www.tudelft.nl/community/alumni
Alumni
other 67 38.1× 772
https://www.tudelft.nl/citg
Civiele Techniek en Geowetenschappen
pricing 67 33.8× 1453 💰 Pricing
https://www.tudelft.nl/stories
TU Delft Stories – Innovatie, Onderzoek & Inspiratie
other 67 22.3× 1343
https://www.tudelft.nl/dutchdesignweek
Dutch Design Week 2020
other 67 25.9× 1796
https://www.tudelft.nl/sustainability
Sustainability
pricing 67 34.1× 1108 💰 Pricing
https://www.tudelft.nl/energy
TU Delft | Delft Energy Initiative
other 67 23.1× 1325
https://www.tudelft.nl/solarurban
SolarUrban
other 67 34.7× 670
https://www.tudelft.nl/climate-safety-security-centre
Climate Safety & Security centre
pricing 67 30.5× 948 💰 Pricing
https://www.tudelft.nl/over-tu-delft/strategie/vision-teams
Vision Teams
pricing 67 38.1× 717 💰 Pricing
https://www.tudelft.nl/over-tu-delft/strategie/foresight
Foresight
pricing 67 27.4× 870 💰 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
/ai/ 25 64 0% 46.4× High JS Bloat
/lr/ 23 62 0% 45.7× High JS Bloat
/evenementen/ 11 46 0% 116.8× High JS Bloat
/studenten/ 9 43 0% 466.7× High JS Bloat
/tbm/ 9 59 0% 62.6× High JS Bloat
/ewi/ 5 55 0% 99.3× High JS Bloat
/library/ 4 49 0% 157.9× High JS Bloat
/over-tu-delft/ 4 60 0% 51.9× High JS Bloat
/citg/ 3 55 0% 66.4× High JS Bloat
/community/ 3 58 0% 67.2× High JS Bloat
/global/ 2 59 0% 88.0× High JS Bloat
/climate-action/ 2 54 0% 68.0× High JS Bloat
/io/ 2 54 0% 77.3× High JS Bloat
/e-refinery/ 2 59 0% 45.3× High JS Bloat
/bk/ 2 49 0% 124.8× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 221 pages
linkedin.com ×205
youtube.com ×185
instagram.com ×164
facebook.com ×160
api.whatsapp.com ×142
wa.me ×137
intranet.tudelft.nl ×88
twitter.com ×69
🔄 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/tudelft.nl

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

🔗 Similar education Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
tudelft.nl (this site) 66 73 TYPO3 3.5× 2
escmid.org 80 79 TYPO3 1.8× 2 Compare →
h-da.de 82 81 TYPO3 2.2× 2 Compare →
reva.edu.in 81 86 Custom / Proprietary 2.7× 2 Compare →
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Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite tudelft.nl 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…

🎭

Bait & Switch Delta

F 15 PAGES

Compares your homepage rendering quality with inner pages. A high drift score means AI crawlers see a polished homepage but degraded inner content — the "bait & switch" that erodes trust.

44
Homepage ACRI
41
Inner Avg ACRI
+3
ACRI Delta
40%
Homepage Ghost
40%
Inner Avg Ghost
92
Drift Score [?]
Worst Inner Pages
54 40% pricing https://www.tudelft.nl/demo
34 40% pricing https://www.tudelft.nl/studenten/io
34 40% pricing https://www.tudelft.nl/studenten/lr-studentenportal
🛡️

E-E-A-T Trust Signals

D 35/100

Trust indicators extracted from surface pages. These signals help AI systems verify your site's Experience, Expertise, Authoritativeness, and Trustworthiness.

Physical Address
Phone Number
Email Contact
About Page
Contact Page
Privacy Policy
Terms of Service
Named Leadership
🔗

Citation Profile

23 DOMAINS

Outbound citation patterns across surface-crawled pages. Sites that cite diverse, authoritative sources signal higher E-E-A-T to AI systems.

121
Total Links
23
Unique Domains
8.1
Avg/Page
19%
Diversity
linkedin.com youtube.com api.whatsapp.com instagram.com wa.me facebook.com intranet.tudelft.nl twitter.com brightspace.tudelft.nl my.tudelft.nl
🏘️ Outbound Neighborhood Trust Avg Trust: 58.5

AI trust scores for the domains tudelft.nl links to. Citing high-trust sources lifts your own credibility signal.

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to tudelft.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": "Tudelft",
  "url": "https://tudelft.nl",
  "logo": "https://tudelft.nl/_assets/2f383d4a929ad3d42eff11e81cdd4068/img/apple-touch-icon-57x57.png",
  "sameAs": []
}
</script>
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 Tudelft?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Tudelft does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Tudelft work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Tudelft."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
73
Projected Score
82
Improvement
+9 pts
Add Organization schema +6 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
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
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