vacanservice.com 56 D
🛡️ SEO 63 🤖 GEO 58 ⚡ Perf 39 🏗️ Arch 60

vacanservice.com — Global SEODiff Score 56/100

vacanservice.com
📊

Registering an exceptional 90/100 on the AI-Crawler Reality Index, vacanservice.com sits in the highest tier of AI extractability among indexed domains. The low ghost ratio (0%) confirms that what crawlers see matches what users see — a hallmark of strong SSR implementation. A 8.5× bloat ratio is typical for sites in this tech tier — not wasteful, but streamlining could further boost extractability. Only 1 schema block is present — adding Organization, WebSite, and Breadcrumb schemas would significantly improve structured data coverage. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

56
D — Global SEODiff Score
Comprehensive search visibility assessment
Below average — Performance (39) needs urgent attention.
🎯 Top Fix: Fix title tag length → +3 pts
🔬 Automated SEODiff Assessment · Snapshot: Feb 25, 2026 · 📋 API
Does your site score higher than vacanservice.com?
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)63 × 0.25 = 15.8
🤖 AI Readiness / GEO (40% weight)58 × 0.40 = 23.2
⚡ Performance (20% weight)39 × 0.20 = 7.8
🏗️ Architecture & Trust (15% weight)60 × 0.15 = 9.0
Weighted sum = 15.8 + 23.2 + 7.8 + 9.0
Global SEODiff Score = 56 (D)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
100
Structure
avg 36
42
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 50%+
Rank #520638
-51 pts
Gap
AI (ACRI)
Top 1%
Score 90/100

vacanservice.com ranks much higher on Google (Tranco Top 50%+) than in AI search (Top 1%). This is the 'Invisible Giant' pattern — implement the patches above to close the AI gap. ACRI measures technical crawler readiness. Read the methodology →

Why vacanservice.com ranks here

Tech stackWordPress
Industry
RenderingSSR
Schema coverage1 blocks
Token bloat8.5×

Fastest improvements

  • 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

63/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

76 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

365 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 5
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://corp.vacan.com
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → ja
  • ✗ Hreflang tags
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — VACAN(バカン)|AIテクノロジーで人の流れを最適化する
  • ✓ og:description — 株式会社バカンは、混雑・行列・満席といった人流の課題をAIテクノロジーで解決するプラットフォームを提供しています。空港や駅、商業施設や宿泊施設、避難所や投票所、トイレなど、まちのあらゆる場所に対応した独自のソリューションで人の流れを最適化します。
  • ✓ 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

58/100 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.

🚨

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 100/100 — Excellent
Structured Elements 3704 elements (3704 lists, 0 rows, 0 headers)
Total Words251
Raw Density1475.7%

🏷️ Schema Health Docs

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

Schema Coverage Map

3/7 schema types detected
✅ Organization
❌ Product/Service
✅ Breadcrumb
❌ FAQ
❌ Article
✅ WebSite
💡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

77
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability77/100 — AI models can easily 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

11%
🗑️ 89%
Useful Content (17.1 KB)Bloat (128.7 KB)
Token Bloat Ratio8.5× — Normal

Multimodal Readiness

Visual Context64% Optimized for Vision
Image Alt Coverage46 / 72 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: 88.3% · SNR: 0.13 · Signal: 4381 / Noise: 32957 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…

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
ServerAmazonS3
CDN
HTTP Status200
Load Time1586 ms
Raw HTML Size145.9 KB
Visible Text Size17.1 KB

Performance & Speed

39/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1586 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

4463
DOM nodes
146 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✗ CDN cache status
  • ✗ CDN detected

🔬 Tracker Tax

15
tracker scripts
6
third-party domains
501.6%
token overhead
Heavy tracker burden — scripts may dilute useful content for AI
pardot.comgoogletagmanager.comclarity.msfacebook.netgoogle-analytics.comdoubleclick.net
📐 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

60/100 15 % of Global Score 🟡 Medium Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

58
internal links
44
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 → ja
  • ✓ 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 68/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

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

Homepage ACRI
68
Single-page score
-53
Severe hidden bloat
Δ delta
Site-Wide ACRI
15
Avg across 10 pages · Range 15–15
🔍
Hidden Bloat Detected

Homepage scores 68, but internal pages average only 15 — a -53-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Total Words
10
Avg Bloat
210.4×
Page Type ACRI Token Bloat Words Status
https://vacanservice.com/pricing
vacan-web
pricing 15 210.4× 1
https://vacanservice.com/about
vacan-web
about 15 210.4× 1
https://vacanservice.com/features
vacan-web
product 15 210.4× 1
https://vacanservice.com/products
vacan-web
product 15 210.4× 1
https://vacanservice.com/docs
vacan-web
docs 15 210.4× 1
https://vacanservice.com/blog
vacan-web
blog 15 210.4× 1
https://vacanservice.com/case-studies
vacan-web
social-proof 15 210.4× 1
https://vacanservice.com/integrations
vacan-web
integrations 15 210.4× 1
https://vacanservice.com/contact
vacan-web
support 15 210.4× 1
https://vacanservice.com/faq
vacan-web
support 15 210.4× 1
📂
Health by Sub-Directory
Average ACRI and top issues aggregated by URL path prefix
Path Pages Avg ACRI Ghost % Bloat Top Issue
/about/ 1 15 1% 210.4× Bot Blocked
/contact/ 1 15 1% 210.4× Bot Blocked
/docs/ 1 15 1% 210.4× Bot Blocked
/faq/ 1 15 1% 210.4× Bot Blocked
/pricing/ 1 15 1% 210.4× Bot Blocked
/products/ 1 15 1% 210.4× Bot Blocked
/case-studies/ 1 15 1% 210.4× Bot Blocked
/features/ 1 15 1% 210.4× Bot Blocked
/blog/ 1 15 1% 210.4× Bot Blocked
/integrations/ 1 15 1% 210.4× Bot Blocked
🔄 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/vacanservice.com

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

🔗 Similar Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
vacanservice.com (this site) 68 90 WordPress 8.5× 1
jejakpersepsi.com 78 90 WordPress 7.1× 1 Compare →
factbites.com 78 87 WordPress 4.5× 1 Compare →
iustlab.org 78 88 WordPress 9.9× 3 Compare →
scspa.com 78 90 WordPress 13.3× 1 Compare →
zipnet.co.il 78 90 WordPress 14.3× 1 Compare →
Compare All 5 Similar Sites →
🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to vacanservice.com. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for vacanservice.com:

Current Score
90
Projected Score
96
Improvement
+6 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