tum.de 66 C
🛡️ SEO 46 🤖 GEO 80 ⚡ Perf 46 🏗️ Arch 87

tum.de — Global SEODiff Score 66/100

tum.de
📊

tum.de achieves a 77/100 on the AI-Crawler Reality Index, reflecting above-average readiness for AI-driven discovery. Within the education vertical, this places tum.de above the industry average of 57 —, suggesting strong competitive positioning in AI search. Server-side rendering keeps the ghost ratio near zero, giving AI systems direct access to all visible content. The token bloat ratio sits at a lean 4.1×, meaning the ratio of code to visible content is efficient — crawlers spend their token budget on actual information. The complete absence of JSON-LD schema is a missed opportunity: even basic Organization markup would improve how AI crawlers understand this domain. Robots.txt grants unrestricted access to the key AI user-agents, which is the strongest starting position for AI visibility.

66
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: Mar 21, 2026 · 📋 API
📈 ACRI Trend 9 snapshots
Mar 4 Mar 21
🔔 Recent AI Indexing Activity
🔄 Mar 12 Content change detected
🔄 Mar 10 Content change detected
🔄 Mar 9 Content change detected
🔄 Mar 7 Content change detected
🔄 Mar 4 Content change detected
Does your site score higher than tum.de?
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)80 × 0.40 = 32.0
⚡ Performance (20% weight)46 × 0.20 = 9.2
🏗️ Architecture & Trust (15% weight)87 × 0.15 = 13.0
Weighted sum = 11.5 + 32.0 + 9.2 + 13.0
Global SEODiff Score = 66 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
82
Structure
avg 35
0
Schema
avg 9
60
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.5%
Rank #5260
+14 pts
Gap
AI (ACRI)
Top 14%
Score 77/100

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

Why tum.de ranks here

Tech stackTYPO3
Industryeducation
RenderingSSR
Schema coverage0 blocks
Token bloat4.1×

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

36 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

141 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 27
  • ✗ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✗ og:title
  • ✗ og:description
  • ✓ 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

80/100 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 →
tum.de
67
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 82/100 — Excellent
Structured Elements 980 elements (980 lists, 0 rows, 0 headers)
Total Words4916
Raw Density19.9%

🏷️ 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

70
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability70/100 — AI models can easily extract answers from this page
Crawl CostMedium (50/100) — moderate for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

24%
🗑️ 76%
Useful Content (109.9 KB)Bloat (342.9 KB)
Token Bloat Ratio4.1× — Lean

Multimodal Readiness

Visual Context25% Optimized for Vision
Image Alt Coverage6 / 24 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 25% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

23 Entropy
Poor Token Bloat: High
Noise Ratio: 75.7% · SNR: 0.32 · Signal: 28135 / Noise: 87785 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 tum.de 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 platform provides a centralized space for TUM researchers to share and access information from past InfoFores and sessions, focusing
Target Audience
Researchers, faculty, administrators, international students, and prospective students at TUM.
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Centralized repository of TUM research materials and insights, combined with a focus on practical applications and solutions for academic challenges.
📊 Content Depth
5/10
🔄 Programmatic SEO Signals
Session titles and descriptions are used as anchor text.Download links are prominently featured.Presentation files are linked to specific sessions.
⚡ Key Pain Points
• Reliance on individual presentations and scattered information sources.
• Potential for outdated information due to the nature of past sessions.
• Lack of a structured system for accessing and discovering relevant resources.
Analyzed by SEODiff AI · 2026-02-28

🔧 Tech Stack

FrameworkTYPO3
AI-Readiness Score60/100
ServerApache/2
CDN
HTTP Status200
Load Time930 ms
Raw HTML Size452.8 KB
Visible Text Size109.9 KB

Performance & Speed

46/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

930 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

4311
DOM nodes
453 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=8970
  • ✗ 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

87/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

765
internal links
14
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 → de-DE
  • ✓ 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 67/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for tum.de
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/tum.de" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=tum.de" 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 1010 pages · Deep-10

Homepage ACRI
67
Single-page score
-10
Moderate hidden bloat
Δ delta
Site-Wide ACRI
57
Avg across 1010 pages · Range 0–77
Topical Cohesion
9%
Topical Drift
TF-IDF cosine similarity
Total Words
997086
Avg Bloat
170.7×
RAG Fractures [?]
9
⚠️
9 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 9 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.tum.de/studium/lehre/lehre-im-dialog/infoforum-studium-und-lehre/archiv
Archiv - TUM
pricing 77 8.6× 12455 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30191
Intensiv und trotzdem klimafreundlich: Mischung aus Acker- und Waldflächen sichert hohen Ertrag - TUM
pricing 67 118.0× 640 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30195
Proteintest findet versteckte Moleküle - TUM
other 67 120.0× 628
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30209
Eine deutsche Erfolgsgeschichte in Asien - TUM
other 67 96.1× 795
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30222
Maximiliansorden für drei Professoren der TUM - TUM
pricing 67 84.3× 896 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30227
Die Vermessung der Erderwärmung - TUM
other 67 127.6× 591
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30228
Der Ingenieur im Unternehmer - TUM
pricing 67 109.2× 697 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30232
Millionenförderung für Forschungsprojekte - TUM
pricing 67 147.0× 511 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30234
Preis für gute Lehre an zwei TUM-Wissenschaftler - TUM
pricing 67 150.6× 503 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30235
Forscher identifizieren neue Risikogene für Herzinfarkt - TUM
other 67 127.3× 589
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30252
„Die Chancen im Volksbegehren stehen gut“ - TUM
other 67 104.1× 722
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30254
Bewährungsprobe für DNA-Nanotechnologie - TUM
pricing 67 66.8× 1142 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30277
Gift für Krebszellen - TUM
other 67 80.9× 940
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30297
Das menschliche Gehirn verstehen – The Human Brain Project - TUM
other 67 147.5× 511
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30300
Johannes Windmiller über den Status der TUM - TUM
other 67 80.1× 944
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30318
Kreativität entsteht durch Vielfalt - TUM
other 67 82.0× 932
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30325
Leicht und sicher durch den Stadtverkehr - TUM
other 67 118.6× 642
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30330
Hip-Hopper Holunder ist Doktor der Physik - TUM
pricing 67 91.8× 819 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30445
Neues Zentrum für deutsche Neutronenforschung - TUM
pricing 67 136.2× 554 💰 Pricing
https://www.tum.de/aktuelles/alle-meldungen/pressemitteilungen/details/30451
TUM-Studenten entwickeln Satelliten, der ins All geht - TUM
other 67 104.3× 721
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
/studium/ 268 65 0% 67.2× High JS Bloat
/aktuelles/ 108 66 0% 97.8× High JS Bloat
/ueber-die-tum/ 40 60 0% 82.2× High JS Bloat
/innovation/ 22 60 0% 82.3× High JS Bloat
/studinews/ 19 59 0% 85.2× High JS Bloat
/forschung/ 15 59 0% 80.7× High JS Bloat
/lebenslanges-lernen/ 12 61 0% 67.7× High JS Bloat
/community/ 12 60 0% 68.8× High JS Bloat
/spezialseiten/ 1 67 0% 16.8× High JS Bloat
/mitarbeitende/ 1 59 0% 67.6× High JS Bloat
/user-analytics/ 1 59 0% 52.1× High JS Bloat
/studierende/ 1 59 0% 133.4× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 1010 pages
portal.mytum.de ×997
community.tum.de ×997
emeriti-of-excellence.tum.de ×997
dualcareer.tum.de ×996
lll.tum.de ×996
ub.tum.de ×996
international.tum.de ×996
professoren.tum.de ×996
🔄 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/tum.de

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 tum.de. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
tum.de (this site) 67 77 TYPO3 4.1× 0
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📊 Semantic Share of Voice

How often would an AI cite tum.de 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.

49
Homepage ACRI
41
Inner Avg ACRI
+8
ACRI Delta
20%
Homepage Ghost
19%
Inner Avg Ghost
100
Drift Score [?]
Worst Inner Pages
39 20% other https://www.tum.de/community/campusleben/musik-und-kunst/kammerorchester
39 20% other https://www.tum.de/ueber-die-tum/daten-und-fakten/preise-auszeichnungen/weitere-auszeichnungen/friedrich-wilhelm-joseph-von-schelling-preis
59 20% pricing https://www.tum.de/studium/studienfinanzierung/stipendien/stipendien-der-tum/deutschlandstipendium/faq
🛡️

E-E-A-T Trust Signals

D 20/100

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

69 DOMAINS

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

556
Total Links
69
Unique Domains
37.1
Avg/Page
12%
Diversity
youtube.com facebook.com community.tum.de portal.mytum.de emeriti-of-excellence.tum.de ed.tum.de mgt.tum.de fundraising.tum.de campus.tum.de zv.tum.de
🏘️ Outbound Neighborhood Trust Avg Trust: 19.5

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to tum.de. 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": "Tum",
  "url": "https://tum.de",
  "logo": "https://tum.de/typo3conf/ext/in2template/Resources/Public/Images/Icons/favicons/favicon.ico",
  "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": "Tum",
  "url": "https://tum.de",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://tum.de/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</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 Tum?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Tum does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Tum work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Tum."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for tum.de:

Current Score
77
Projected Score
93
Improvement
+16 pts
Add Organization schema +6 pts
Add WebSite schema +4 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
🔍 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 →