herold.at 62 C
🛡️ SEO 50 🤖 GEO 65 ⚡ Perf 54 🏗️ Arch 83

herold.at — Global SEODiff Score 62/100

herold.at
📊

The AI-Readiness profile for herold.at is strong: an ACRI of 80/100 places it ahead of 94% of domains in the index. In the infrastructure sector, herold.at outperforms the average (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. Heavy markup overhead (50.0× bloat) forces AI systems to wade through excess code before finding useful information. Zero schema blocks puts this site at a disadvantage in knowledge graph and AI-answer pipelines that rely on explicit structured data. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

62
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (50) is your bottleneck.
🎯 Top Fix: Reduce token bloat (112×) → +5–10 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 7 snapshots
Feb 23 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than herold.at?
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)65 × 0.40 = 26.0
⚡ Performance (20% weight)54 × 0.20 = 10.8
🏗️ Architecture & Trust (15% weight)83 × 0.15 = 12.4
Weighted sum = 12.5 + 26.0 + 10.8 + 12.4
Global SEODiff Score = 62 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
97
Rendering
avg 93
100
Structure
avg 35
0
Schema
avg 9
55
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 5%
Rank #47827
Aligned
Gap
AI (ACRI)
Top 6%
Score 80/100

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

Why herold.at ranks here

Tech stackExpress
RenderingHybrid
Schema coverage0 blocks
Token bloat50×+

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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

56 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

153 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 10
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.herold.at/
  • ✓ 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 — Herold | Firmensuche & Online Marketing für Unternehmen
  • ✓ og:description — Österreichs größtes Online-Verzeichnis für die lokale Firmensuche, sowie führender Anbieter für Online Marketing Dienstleistungen für Unternehmen.
  • ✓ 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

65/100 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 infrastructure sector, safely.co.jp (ACRI: 90) 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 →
herold.at
56
Your ACRI Score
90
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. safely.co.jp has schema coverage of 3 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 10%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 100/100 — Excellent
Structured Elements 167 elements (167 lists, 0 rows, 0 headers)
Total Words441
Raw Density37.9%

🏷️ 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

55
AI Extractability
High
Crawl Cost
None
Blocklist Risk
Extractability55/100 — AI models can partially extract answers from this page
Crawl CostHigh (100/100) — expensive for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

1%
🗑️ 99%
Useful Content (5.2 KB)Bloat (577.6 KB)
Token Bloat Ratio50×+ — Bloated

Multimodal Readiness

Visual Context100% Optimized for Vision
Image Alt Coverage3 / 3 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Your HTML is 582.8 KB, but only 5.2 KB is text. 1% useful / 99% bloat. AI crawlers have limited context windows (e.g. 128k tokens). This level of bloat (50×+) risks context-window truncation by ChatGPT, Claude, and Gemini. Reduce inline scripts, CSS, hydration payloads, and tracking code.

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 99.1% · SNR: 0.01 · Signal: 1333 / Noise: 147862 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 herold.at 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
This is a hospital providing comprehensive medical care, including specialized treatments and rehabilitation services, with a focus on patient well-being
Target Audience
Patients requiring hospital care, including those with chronic illnesses, post-operative patients, and individuals needing emergency medical services; healthcare professionals seeking referrals.
Pricing Model
Not specified – operates as a non-profit hospital with funding from insurance and patient fees.
🛡️ Compliance Standards
SOC 2
🏆 Competitive Moat
Long-standing reputation and history of providing high-quality care, combined with a dedicated and empathetic staff.
📊 Content Depth
6/10
🔄 Programmatic SEO Signals
Karte anzeigenKontakt speichernShare
⚡ Key Pain Points
• Negative review highlighting a poor experience with a specific doctor, suggesting a need for improved communication and patient interaction.
Analyzed by SEODiff AI · 2026-03-02

🔧 Tech Stack

FrameworkExpress
AI-Readiness Score55/100
ServerLiteSpeed
CDN
HTTP Status200
Load Time989 ms
Raw HTML Size582.8 KB
Visible Text Size5.2 KB

Performance & Speed

54/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

989 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1099
DOM nodes
583 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=60, public, stale-while-revalidate=604800
  • ✗ 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.herold.at/sitemap.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

116
internal links
5
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 56/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for herold.at
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/herold.at" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=herold.at" 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 82 pages · Deep-10

Homepage ACRI
56
Single-page score
-6
Moderate hidden bloat
Δ delta
Site-Wide ACRI
50
Avg across 82 pages · Range 0–69
Topical Cohesion
6%
Topical Drift
TF-IDF cosine similarity
Total Words
19730
Avg Bloat
326.3×
Page Type ACRI Token Bloat Words Status
https://www.herold.at/gelbe-seiten/eisenstadt/pkRQL/krankenhaus-der-barmherzigen-brueder-eisenstadt-gmbh/
Krankenhaus der Barmherzigen Brüder Eisenstadt GmbH in 7000 Eisenstadt (Stadt) | herold.at
other 69 108.9× 861
https://www.herold.at/gelbe-seiten/graz/G6dGS/hirt-klaus-eu/
Hirt Klaus e.U. in 8010 Graz (Stadt) | herold.at
other 59 302.9× 297
https://www.herold.at/gelbe-seiten/matrei-am-brenner/XfMtQ/parkhotel-matrei/
Parkhotel Matrei in 6143 Innsbruck (Land) | herold.at
pricing 59 210.0× 407 💰 Pricing
https://www.herold.at/gelbe-seiten/st-p%C3%B6lten/91L1l/autohaus-hofbauer-gmbh/
Autohaus Hofbauer GmbH in 3100 St. Pölten (Stadt) | herold.at
other 59 362.5× 242
https://www.herold.at/gelbe-seiten/wattens/b6jrT/kraftwerk-haim-kg/
Kraftwerk Haim KG in 6112 Innsbruck (Land) | herold.at
other 59 341.0× 252
https://www.herold.at/gelbe-seiten/leoben/px4g1/steinmetzbetrieb-sonnleitner-und-vorraber-gmbh/
Steinmetzbetrieb Sonnleitner & Vorraber GmbH in 8700 Leoben | herold.at
other 59 313.1× 258
https://www.herold.at/gelbe-seiten/graz/MG5b5/herwa-multiclean-gebaeudereinigung-gmbh/
Herwa Multiclean Gebäudereinigung GmbH in 8041 Graz (Stadt) | herold.at
other 59 344.7× 271
https://www.herold.at/gelbe-seiten/ebenthal/nVDCd/dr-alexander-scheriau/
Dr. Alexander Scheriau in 9065 Klagenfurt (Land) | herold.at
other 59 262.8× 329
https://www.herold.at/gelbe-seiten/golling-an-der-salzach/7rWsW/wallpach-metallwarenfabrik-gmbh/
Wallpach Metallwarenfabrik GmbH in 5440 Hallein | herold.at
other 59 439.1× 205
https://www.herold.at/gelbe-seiten/graz/qkN3S/lobster-development-gmbh/
Lobster Development GmbH in 8010 Graz (Stadt) | herold.at
other 59 238.3× 375
https://www.herold.at/gelbe-seiten/mistelbach/hBjHs/autohaus-polke-gmbh/
Autohaus Polke GmbH in 2130 Mistelbach | herold.at
other 59 309.4× 284
https://www.herold.at/gelbe-seiten/r%C3%B6this/nJdX9/roefix-ag/
RÖFIX AG in 6832 Feldkirch | herold.at
other 59 293.4× 317
https://www.herold.at/gelbe-seiten/schwarzach/DB3gF/die-verpackungs-druckerei-oder-schwarzach-packaging-gmbh/
die-verpackungs-druckerei | Schwarzach Packaging GmbH in 6858 Bregenz | herold.at
other 59 280.8× 328
https://www.herold.at/gelbe-seiten/schwarzach/b6L13/schwarzach-packaging-gmbh/
Schwarzach Packaging GmbH in 6858 Bregenz | herold.at
other 59 346.1× 243
https://www.herold.at/gelbe-seiten/hainburg-an-der-donau/hx8vS/autohaus-wenighofer-gmbh-und-co-kg/
Autohaus Wenighofer GmbH & Co KG in 2410 Bruck an der Leitha | herold.at
other 59 230.8× 415
https://www.herold.at/gelbe-seiten/graz/v7mgh/adler-apotheke/
Adler Apotheke in 8010 Graz (Stadt) | herold.at
other 59 246.2× 393
https://www.herold.at/gelbe-seiten/grafenw%C3%B6rth/GpSHB/balley-rudolf-gmbh/
Balley Rudolf GmbH in 3484 Tulln | herold.at
pricing 59 366.3× 226 💰 Pricing
https://www.herold.at/gelbe-seiten/purkersdorf/LRmN2/pordes-hallen-gmbh/
pordes hallen gmbh in 3011 St. Pölten (Land) | herold.at
pricing 59 350.0× 228 💰 Pricing
https://www.herold.at/gelbe-seiten/st-p%C3%B6lten/nHKCT/realkanzlei-edlauer-immobilientreuhaender-gmbh-und-co-kg/
Realkanzlei Edlauer Immobilientreuhänder GmbH & Co KG in 3100 St. Pölten (Stadt) | herold.at
pricing 59 202.4× 484 💰 Pricing
https://www.herold.at/gelbe-seiten/st-valentin/v8CNc/peha-medien-gmbh/
PEHA Medien GmbH in 4300 Amstetten | herold.at
pricing 59 338.4× 264 💰 Pricing
Showing 20 of 82 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
/gelbe-seiten/ 72 57 0% 359.6× High JS Bloat
/blog/ 1 36 0% 869.5× High JS Bloat
/features/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/about/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 0 0% 0.0× Low AI Readiness
/faq/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 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 82 pages
arztsuche24.at ×73
linkedin.com ×73
xing.com ×73
youtube.com ×73
home.herold.at ×73
facebook.com ×73
karriere.herold.at ×73
login.herold.at ×73
🔄 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/herold.at

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
herold.at (this site) 56 80 Express 111.9× 0
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wholesaleweddingsuperstore.com.au 81 87 Express 5.1× 3 Compare →
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📊 Semantic Share of Voice

How often would an AI cite herold.at 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 herold.at. 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": "Herold",
  "url": "https://herold.at",
  "logo": "https://herold.at/icons/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": "Herold",
  "url": "https://herold.at",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://herold.at/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 0% 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 Herold?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Herold does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Herold work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Herold."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for herold.at:

Current Score
80
Projected Score
98
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
🔍 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 →