stern.de 63 C
🛡️ SEO 50 🤖 GEO 72 ⚡ Perf 46 🏗️ Arch 86

stern.de — Global SEODiff Score 63/100

stern.de
📊

With a 52/100 ACRI, stern.de has a moderate AI visibility profile — functional but not yet optimized for AI crawlers. Within the social vertical, this places stern.de below the industry average of 57 —, indicating room for competitive improvement. Its server-rendered architecture ensures AI crawlers receive complete HTML on first request, a key advantage for extractability. The 5.9× 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. Most AI crawlers are restricted by robots.txt, limiting how AI-powered search engines can index and surface this content.

63
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (46) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 29 snapshots
Mar 4 Mar 21
🔔 Recent AI Indexing Activity
🔄 Mar 21 Content change detected
📉 Mar 20 ACRI -1 (51→50)
🔄 Mar 20 Content change detected
📈 Mar 19 ACRI +1 (50→51)
📉 Mar 19 ACRI -1 (51→50)
Does your site score higher than stern.de?
Run the same 40-signal audit on your own domain — free, instant results.
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)50 × 0.25 = 12.5
🤖 AI Readiness / GEO (40% weight)72 × 0.40 = 28.8
⚡ Performance (20% weight)46 × 0.20 = 9.2
🏗️ Architecture & Trust (15% weight)86 × 0.15 = 12.9
Weighted sum = 12.5 + 28.8 + 9.2 + 12.9
Global SEODiff Score = 63 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
40
Bot Access
avg 92
99
Rendering
avg 93
48
Structure
avg 35
2
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.4%
Rank #3931
+58 pts
Gap
AI (ACRI)
Top 58%
Score 52/100

stern.de 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 stern.de ranks here

Tech stackCustom / Proprietary
Industrysocial
RenderingSSR
Schema coverage1 blocks
Token bloat5.9×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • 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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

50 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

158 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 24
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.stern.de/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → de
  • ➖ Hreflang tags — N/A (single language site)
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — Nachrichten, Hintergründe & Reportagen
  • ✓ og:description — Auf STERN.DE finden Sie News, spannende Hintergründe sowie bildstarke Reportagen aus allen Bereichen: Von Politik und Wirtschaft bis Kultur und Wissenschaft.
  • ✗ og:image
  • ✓ 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

72/100 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 →
stern.de
50
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)
Blocked
ClaudeBot (Anthropic)
Allowed
CCBot (Common Crawl)
Blocked
Google-Extended
Blocked
Googlebot
Allowed
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.

👻 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 48/100 — Fair
Structured Elements 265 elements (265 lists, 0 rows, 0 headers)
Total Words3868
Raw Density6.8%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks1 block(s) — Basic (low value for AI)

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
Medium
Crawl Cost
High
Blocklist Risk
Extractability57/100 — AI models can partially extract answers from this page
Crawl CostMedium (50/100) — moderate for AI crawlers to process
Blocklist RiskHigh — 3 of 5 AI crawlers blocked

Token Bloat Research

16%
🗑️ 84%
Useful Content (76.0 KB)Bloat (370.7 KB)
Token Bloat Ratio5.9× — Normal

Multimodal Readiness

Visual Context99% Optimized for Vision
Image Alt Coverage130 / 131 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: 83.0% · SNR: 0.21 · Signal: 19457 / Noise: 94889 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 stern.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
Publishing and media content distribution platform
Target Audience
Journalists, content creators, media companies
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Comprehensive content across various niches and formats
📊 Content Depth
5/10
⚡ Key Pain Points
• No pricing model mentioned
• No integration partners listed
Analyzed by SEODiff AI · 2026-02-28

🔧 Tech Stack

AI-Readiness Score50/100
Server
CDN
HTTP Status200
Load Time759 ms
Raw HTML Size446.7 KB
Visible Text Size76.0 KB

Performance & Speed

46/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

759 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

3352
DOM nodes
447 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=60, s-maxage=300, stale-while-revalidate=3600, stale-if-error=3600
  • ✗ 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

86/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

399
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 → 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 50/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for stern.de
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/stern.de" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=stern.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 23 pages · Deep-10

Homepage ACRI
50
Single-page score
-42
Severe hidden bloat
Δ delta
Site-Wide ACRI
9
Avg across 23 pages · Range 0–67
🔍
Hidden Bloat Detected

Homepage scores 50, but internal pages average only 9 — a -42-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
6%
Topical Drift
TF-IDF cosine similarity
Total Words
5566
Avg Bloat
3.3×
Page Type ACRI Token Bloat Words Status
https://stern.de/about
Impressum www.stern.de | STERN.de
about 67 22.0× 1145
https://stern.de/blog
Nachrichten, Hintergründe & Reportagen | STERN.de
pricing 67 26.0× 3404 💰 Pricing
https://stern.de/demo
High-Tech-Expertin Chris Shipley: "Technik muss unsichtbar werden" | STERN.de
pricing 67 28.9× 1017 💰 Pricing
https://stern.de/pricing pricing 0 0.0× 0
https://stern.de/api docs 0 0.0× 0
https://stern.de/guides blog 0 0.0× 0
https://stern.de/resources blog 0 0.0× 0
https://stern.de/help support 0 0.0× 0
https://stern.de/products product 0 0.0× 0
https://stern.de/solutions product 0 0.0× 0
https://stern.de/features product 0 0.0× 0
https://stern.de/docs docs 0 0.0× 0
https://stern.de/get-started conversion 0 0.0× 0
https://stern.de/case-studies social-proof 0 0.0× 0
https://stern.de/faq support 0 0.0× 0
https://stern.de/integrations integrations 0 0.0× 0
https://stern.de/support support 0 0.0× 0
https://stern.de/contact support 0 0.0× 0
https://stern.de/security trust 0 0.0× 0
https://stern.de/trust trust 0 0.0× 0
Showing 20 of 23 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
/about/ 1 67 0% 22.0× High JS Bloat
/blog/ 1 67 0% 26.0× High JS Bloat
/demo/ 1 67 0% 28.9× High JS Bloat
/help/ 1 0 0% 0.0× Low AI Readiness
/privacy/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/features/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/resources/ 1 0 0% 0.0× Low AI Readiness
/terms/ 1 0 0% 0.0× Low AI Readiness
/guides/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/faq/ 1 0 0% 0.0× Low AI Readiness
/integrations/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 23 pages
tiktok.com ×3
shop.stern.de ×3
reisewelten.stern.de ×3
youtube.com ×3
serviceportal.stern.de ×3
instagram.com ×3
twitter.com ×3
facebook.com ×3
🔄 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/stern.de

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

🔗 Similar social Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
stern.de (this site) 50 52 Custom / Proprietary 5.9× 1
cgsh.com 75 79 Custom / Proprietary 2.8× 1 Compare →
arithmeticcalculator.com 75 77 Custom / Proprietary 2.7× 1 Compare →
krovelson.ru 75 83 Custom / Proprietary 2.6× 1 Compare →
deadlystream.com 75 84 Custom / Proprietary 5.8× 3 Compare →
forums.odforce.net 75 83 Custom / Proprietary 6.1× 3 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite stern.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

A 2 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.

67
Homepage ACRI
67
Inner Avg ACRI
0
ACRI Delta
20%
Homepage Ghost
20%
Inner Avg Ghost
1
Drift Score [?]
Worst Inner Pages
67 20% pricing https://stern.de/blog
🛡️

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

12 DOMAINS

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

23
Total Links
12
Unique Domains
11.5
Avg/Page
52%
Diversity
spiele.stern.de facebook.com instagram.com twitter.com youtube.com serviceportal.stern.de reisewelten.stern.de shop.stern.de tiktok.com whatsapp.com
🏘️ Outbound Neighborhood Trust Avg Trust: 50.7

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to stern.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": "Stern",
  "url": "https://stern.de",
  "logo": "https://www.stern.de/public/favicon-FMX3RXE2.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": "Stern",
  "url": "https://stern.de",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://stern.de/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Allow GPTBot in robots.txt
High Impact ⏱ 2 min
GPTBot is blocked — your content cannot appear in ChatGPT citations. Add this to your robots.txt:
text
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /
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 Stern?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Stern does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Stern work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Stern."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
52
Projected Score
76
Improvement
+24 pts
Allow GPTBot +8 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?
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