unibas.ch 67 C
🛡️ SEO 50 🤖 GEO 88 ⚡ Perf 28 🏗️ Arch 92

unibas.ch — Global SEODiff Score 67/100

unibas.ch
📊

unibas.ch achieves a 80/100 on the AI-Crawler Reality Index, reflecting above-average readiness for AI-driven discovery. In the education sector, unibas.ch outperforms the average (57), suggesting strong competitive positioning in AI search. The low ghost ratio (5%) confirms that what crawlers see matches what users see — a hallmark of strong SSR implementation. With a 2.5× bloat ratio, the page delivers its content without excessive boilerplate, giving AI systems a clean extraction path. The complete absence of JSON-LD schema is a missed opportunity: even basic Organization markup would improve how AI crawlers understand this domain. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

67
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (28) is your bottleneck.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 4 snapshots
Mar 6 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than unibas.ch?
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)50 × 0.25 = 12.5
🤖 AI Readiness / GEO (40% weight)88 × 0.40 = 35.2
⚡ Performance (20% weight)28 × 0.20 = 5.6
🏗️ Architecture & Trust (15% weight)92 × 0.15 = 13.8
Weighted sum = 12.5 + 35.2 + 5.6 + 13.8
Global SEODiff Score = 67 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
100
Structure
avg 35
0
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 2%
Rank #15651
Aligned
Gap
AI (ACRI)
Top 6%
Score 80/100

unibas.ch has balanced Google and AI visibility — both rank roughly in the same tier. ACRI measures technical crawler readiness. Read the methodology →

Why unibas.ch ranks here

Tech stackCustom / Proprietary
Industryeducation
RenderingSSR
Schema coverage0 blocks
Token bloat2.5×

Fastest improvements

  • Add basic Organization and WebSite JSON-LD to fix “0 schema blocks” (see Schema Coverage).
  • 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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

39 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

148 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 12
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — Universität Basel
  • ✓ og:description — Die Universität Basel ist die älteste Hochschule der Schweiz. Als forschungsstarke Universität bietet sie Studierenden ein attraktives Bildungsangebot.
  • ✓ 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

88/100 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, rndirectors.com (ACRI: 85) 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 →
unibas.ch
76
Your ACRI Score
85
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. rndirectors.com has schema coverage of 4 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)
Allowed
ClaudeBot (Anthropic)
Allowed
CCBot (Common Crawl)
Allowed
Google-Extended
Allowed
Googlebot
Allowed

👻 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 100/100 — Excellent
Structured Elements 905 elements (905 lists, 0 rows, 0 headers)
Total Words2716
Raw Density33.3%

🏷️ 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

75
AI Extractability
High
Crawl Cost
None
Blocklist Risk
Extractability75/100 — AI models can easily 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

40%
🗑️ 60%
Useful Content (216.3 KB)Bloat (319.4 KB)
Token Bloat Ratio2.5× — Lean

Multimodal Readiness

Visual Context96% Optimized for Vision
Image Alt Coverage159 / 165 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

62 Entropy
Fair Token Bloat: Medium
Noise Ratio: 59.6% · SNR: 0.68 · Signal: 55360 / Noise: 81754 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 unibas.ch 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
Universität Basel provides educational opportunities, including a range of study programs.
Target Audience
Students, prospective students
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
SEMANTIC VOID
📊 Content Depth
3/10
Analyzed by SEODiff AI · 2026-02-28

🔧 Tech Stack

AI-Readiness Score50/100
Server
CDN
HTTP Status200
Load Time1770 ms
Raw HTML Size535.6 KB
Visible Text Size216.3 KB

Performance & Speed

28/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1770 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

4395
DOM nodes
536 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → no-cache, no-store, must-revalidate, max-age=0
  • ✗ 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

92/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

1029
internal links
7
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
  • ✓ 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 76/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for unibas.ch
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/unibas.ch" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=unibas.ch" 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 143 pages · Deep-10

Homepage ACRI
76
Single-page score
-28
Severe hidden bloat
Δ delta
Site-Wide ACRI
48
Avg across 143 pages · Range 0–62
🔍
Hidden Bloat Detected

Homepage scores 76, but internal pages average only 48 — a -28-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
9%
Topical Drift
TF-IDF cosine similarity
Total Words
71362
Avg Bloat
167.0×
Page Type ACRI Token Bloat Words Status
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Ein-Rollkoffer-voller-Mathematik.html
Ein Rollkoffer voller Mathematik | Universität Basel
pricing 62 84.6× 1153 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Die-10000-Fotos-des-Jacob-Burckhardt.html
Die 10'000 Fotos des Jacob Burckhardt | Universität Basel
pricing 62 99.1× 972 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Mit-Jacob-Burckhardt-die-Kulturgeschichte-reflektieren.html
«Mit Jacob Burckhardt die Kulturgeschichte reflektieren» | Universität Basel
pricing 62 73.5× 1322 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Energiezukunft-Schweiz.html
Energiezukunft Schweiz – wohin führt der Weg? | Universität Basel
pricing 62 101.0× 951 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Sitzt-du-noch-oder-bewegst-du-dich-schon.html
Sitzt du noch oder bewegst du dich schon? Eine Ausstellung zum Thema Sport und Gehirn | Universität Basel
pricing 62 110.9× 867 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Bernoulli-Lecture-Die-Psychologie-der-Verschwoerungstheorien.html
Bernoulli Lecture: Die Psychologie der Verschwörungstheorien | Universität Basel
pricing 62 94.8× 1016 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Ringvorlesungen-im-Herbstsemester-2023.html
Ringvorlesungen im Herbstsemester 2023 | Universität Basel
pricing 62 131.3× 729 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Kunst-oder-Code-Eine-Gameshow-an-der-Schnittstelle-von-KI-und-Kreativitaet.html
Kunst oder Code? Eine Gameshow an der Schnittstelle von KI und Kreativität | Universität Basel
pricing 62 72.9× 1327 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Eine-Pflanzensammlung-als-Lebenswerk.html
Eine Pflanzensammlung als Lebenswerk | Universität Basel
pricing 62 89.9× 1071 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Ein-frischer-Blick-auf-die-Welt.html
Ein frischer Blick auf die Welt | Universität Basel
pricing 62 115.3× 831 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Neuer-Master-in-Biomedical-Engineering.html
Technische Fortschritte vorantreiben: Neuer Master in Biomedical Engineering | Universität Basel
pricing 62 100.9× 952 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Gemeinsam-Wissen-schaffen.html
Universität und Museen: Gemeinsam Wissen schaffen | Universität Basel
pricing 62 94.7× 1015 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Gesundheitsdaten-zu-Herzfehler-jederzeit-im-Griff.html
Gesundheitsdaten zu Herzfehler jederzeit im Griff | Universität Basel
pricing 62 93.8× 1024 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Zurueck-in-den-Hoersaal.html
Lehrer-Events: Zurück in den Hörsaal | Universität Basel
pricing 62 94.8× 1015 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Bernoulli-Lecture-Wie-Ausdauer-und-Leidenschaft-unseren-Erfolg-bestimmen.html
Bernoulli Lecture: Wie Ausdauer und Leidenschaft unseren Erfolg bestimmen | Universität Basel
pricing 62 114.8× 836 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Assistierende-wuenschen-sich-mehr-Transparenz-und-mehr-Sicherheit.html
Assistierende wünschen sich mehr Transparenz und mehr Sicherheit | Universität Basel
pricing 62 122.0× 787 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Online-Kurs-ueber-Social-Entrepreneurship.html
Online-Kurs über «Social Entrepreneurship» | Universität Basel
pricing 59 149.8× 639 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Campus/Spatenstich-fuer-den-Swiss-TPH-Neubau.html
Spatenstich für den Neubau des Schweizerischen Tropen- und Public Health-Instituts | Universität Basel
pricing 59 173.9× 550 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Wer-war-Fritz-Platten-Eine-Ausstellung-von-Studierenden-wird-Realitaet.html
Wer war Fritz Platten? Eine Ausstellung von Studierenden wird Realität | Universität Basel
pricing 59 123.1× 786 💰 Pricing
https://www.unibas.ch/de/Aktuell/News/Uni-Agenda/Uni-Einblicke-zu-Gast-bei-den-Nahoststudien.html
«Uni-Einblicke» zu Gast bei den Nahoststudien | Universität Basel
pricing 59 188.1× 508 💰 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
/de/ 126 54 0% 188.2× High JS Bloat
/solutions/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/terms/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/blog/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 0 0% 0.0× Low AI Readiness
/api/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/careers/ 1 0 0% 0.0× Low AI Readiness
/de.html/ 1 56 0% 157.2× High JS Bloat
/help/ 1 0 0% 0.0× Low AI Readiness
/about/ 1 0 0% 0.0× Low AI Readiness
/privacy/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 143 pages
bsky.app ×127
youtube.com ×127
instagram.com ×127
its.unibas.ch ×127
unisport.ch ×127
markt.unibas.ch ×127
intranet.unibas.ch ×127
ch.linkedin.com ×127
🔄 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/unibas.ch

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

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📊 Semantic Share of Voice

How often would an AI cite unibas.ch 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 unibas.ch. 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": "Unibas",
  "url": "https://unibas.ch",
  "logo": "https://unibas.ch/.resources/unibas-main/webresources/img/unibas.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": "Unibas",
  "url": "https://unibas.ch",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://unibas.ch/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 Unibas?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Unibas does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Unibas work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Unibas."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for unibas.ch:

Current Score
80
Projected Score
93
Improvement
+13 pts
Add Organization schema +6 pts
Add WebSite schema +4 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?
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