e-mansion.co.jp 62 C
🛡️ SEO 38 🤖 GEO 88 ⚡ Perf 33 🏗️ Arch 70

e-mansion.co.jp — Global SEODiff Score 62/100

e-mansion.co.jp
📊

e-mansion.co.jp shows strong AI visibility with an ACRI of 80/100, outperforming 94% of indexed domains. Within the infrastructure vertical, this places e-mansion.co.jp above the industry average of 57 —, suggesting strong competitive positioning in AI search. Content is delivered server-side, meaning bots and AI agents can parse the full page without executing JavaScript. With a 3.5× bloat ratio, the page delivers its content without excessive boilerplate, giving AI systems a clean extraction path. Zero schema blocks puts this site at a disadvantage in knowledge graph and AI-answer pipelines that rely on explicit structured data. Robots.txt grants unrestricted access to the key AI user-agents, which is the strongest starting position for AI visibility.

62
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (33) is your bottleneck.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Feb 26, 2026 · 📋 API
Does your site score higher than e-mansion.co.jp?
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)38 × 0.25 = 9.5
🤖 AI Readiness / GEO (40% weight)88 × 0.40 = 35.2
⚡ Performance (20% weight)33 × 0.20 = 6.6
🏗️ Architecture & Trust (15% weight)70 × 0.15 = 10.5
Weighted sum = 9.5 + 35.2 + 6.6 + 10.5
Global SEODiff Score = 62 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
100
Structure
avg 36
0
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 12%
Rank #124629
-6 pts
Gap
AI (ACRI)
Top 6%
Score 80/100

e-mansion.co.jp is more visible to Google than to AI models. There's room to improve AI discoverability to match your search reputation. ACRI measures technical crawler readiness. Read the methodology →

Why e-mansion.co.jp ranks here

Tech stackCustom / Proprietary
RenderingSSR
Schema coverage0 blocks
Token bloat3.5×

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

38/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

123 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

207 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 4
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.e-mansion.co.jp/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → ja
  • ✗ Hreflang tags
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — 【マンションコミュニティ】不動産・マンションの口コミ掲示板であなたの住宅購入を応援
  • ✓ og:description — 「あの物件の評判は?」日本最大級の口コミ掲示板で、気になる口コミをチェック!マンションコミュニティは、購入検討者や住民の方々を応援します。
  • ✓ 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

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 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 →
e-mansion.co.jp
75
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 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 635 elements (335 lists, 150 rows, 150 headers)
Total Words1737
Raw Density36.6%

🏷️ 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
Medium
Crawl Cost
None
Blocklist Risk
Extractability75/100 — 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

28%
🗑️ 72%
Useful Content (77.7 KB)Bloat (193.0 KB)
Token Bloat Ratio3.5× — Lean

Multimodal Readiness

Visual Context100% Optimized for Vision
Image Alt Coverage33 / 33 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

38 Entropy
Poor Token Bloat: High
Noise Ratio: 71.3% · SNR: 0.40 · Signal: 19882 / Noise: 49404 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

A local LLM (mlx-community/gemma-3-4b-it-qat-4bit) analyzed the extracted content of e-mansion.co.jp 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 website is a community forum for residents of apartment buildings in the Greater Tokyo Area, primarily focusing on the
Target Audience
Residents of apartment buildings, prospective buyers, and individuals seeking information about living in the Greater Tokyo Area, specifically Chiba Prefecture.
Pricing Model
No explicit pricing model is stated. Downloadable price lists are available for a fee (¥1,100).
🏆 Competitive Moat
Extensive community-specific content and a dedicated user base create a strong network effect and a valuable resource for residents.
📊 Content Depth
6/10
🔄 Programmatic SEO Signals
Multiple landing pages targeting specific areas (Tokyo 23 Ward, Chiba City, etc.)Template-generated pages for property listings and community discussionsRSS feed for updates
⚡ Key Pain Points
• Lack of structured FAQ schema
• Thin landing pages for features
• Limited information on property prices (incomplete data)
Model: mlx-community/gemma-3-4b-it-qat-4bit · Analyzed: 2026-02-28 · Data extracted from the site’s main content via strict JSON prompting.

🔧 Tech Stack

AI-Readiness Score50/100
ServerApache
CDN
HTTP Status200
Load Time1642 ms
Raw HTML Size270.7 KB
Visible Text Size77.7 KB

Performance & Speed

33/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1642 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

3772
DOM nodes
271 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✗ 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

70/100 15 % of Global Score 🟡 Medium Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

400
internal links
105
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 75/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for e-mansion.co.jp
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/e-mansion.co.jp" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=e-mansion.co.jp" 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 1000 pages · Deep-10

Homepage ACRI
75
Single-page score
-16
Moderate hidden bloat
Δ delta
Site-Wide ACRI
59
Avg across 1000 pages · Range 59–69
🔍
Hidden Bloat Detected

Homepage scores 75, but internal pages average only 59 — a -16-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Total Words
469633
Avg Bloat
65.6×
RAG Fractures [?]
1000
⚠️
1000 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 1000 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.e-mansion.co.jp/bbs/thread/448926/
【契約者専用】スカイプラザステーションタワーユーカリが丘|マンションコミュニティ
pricing 69 56.9× 697 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448927/
【契約者専用】ハイツ大手町I|マンションコミュニティ
pricing 66 81.4× 998 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448945/
【契約者専用】じょうてつドエルアイム知事公館|マンションコミュニティ
pricing 59 64.9× 476 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448946/
【契約者専用】パークハウス知事公館前|マンションコミュニティ
pricing 59 64.7× 476 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448874/
【契約者専用】ダイアパレス北37条|マンションコミュニティ
pricing 59 65.7× 468 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448875/
【契約者専用】クリーンリバー北37条新道東|マンションコミュニティ
pricing 59 65.9× 467 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448947/
【契約者専用】アルス近代美術館|マンションコミュニティ
pricing 59 65.0× 473 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448948/
【契約者専用】アルス近代美術館ウエスト|マンションコミュニティ
pricing 59 65.1× 473 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448949/
【契約者専用】パークホームズ近代美術館前|マンションコミュニティ
pricing 59 64.9× 475 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448950/
【契約者専用】パークハウス北2条|マンションコミュニティ
pricing 59 65.0× 473 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448951/
【契約者専用】ロイヤルヴィーゼ北2条|マンションコミュニティ
pricing 59 65.2× 472 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448953/
【契約者専用】パークハイム植物園|マンションコミュニティ
pricing 59 65.2× 472 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448954/
【契約者専用】札幌パークマンション|マンションコミュニティ
pricing 59 65.2× 472 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448955/
【契約者専用】土屋ファーストルネス植物園|マンションコミュニティ
pricing 59 64.8× 476 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448956/
【契約者専用】チュリス北三条|マンションコミュニティ
pricing 59 64.8× 474 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448957/
【契約者専用】アルス知事公館|マンションコミュニティ
pricing 59 64.7× 475 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448958/
【契約者専用】ダイアパレス北3条|マンションコミュニティ
pricing 59 64.5× 477 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448960/
【契約者専用】ライオンズマンション植物園第2|マンションコミュニティ
pricing 59 64.8× 476 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448959/
【契約者専用】ライオンズマンション植物園第3|マンションコミュニティ
pricing 59 64.8× 476 ⚠️ RAG Fracture
https://www.e-mansion.co.jp/bbs/thread/448962/
【契約者専用】クリオレミントンハウス知事公館前|マンションコミュニティ
pricing 59 64.6× 478 ⚠️ RAG Fracture
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
/bbs/ 500 59 0% 65.6× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 1000 pages
mail-wind.com ×1000
sumu-log.com ×1000
feed.mikle.com ×1000
sumu-lab.com ×1000
link.e-mansion.co.jp ×1000
mikle.jp ×1000
support.e-mansion.co.jp ×1000
sutekicookan.com ×1000
🔄 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/e-mansion.co.jp

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

🔗 Similar infrastructure Sites

Domains with a similar tech stack, industry, and AI readiness profile to e-mansion.co.jp. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
e-mansion.co.jp (this site) 75 80 Custom / Proprietary 3.5× 0
violinsetc.com 89 86 Custom / Proprietary 2.2× 1 Compare →
insuranceyet.com 86 87 Custom / Proprietary 4.9× 4 Compare →
pubsandclubs.com.au 86 87 Custom / Proprietary 4.9× 4 Compare →
kruizinga.nl 87 93 Custom / Proprietary 3.0× 5 Compare →
safescan.com 86 87 Custom / Proprietary 1.9× 5 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite e-mansion.co.jp 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 e-mansion.co.jp. 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": "Co",
  "url": "https://e-mansion.co.jp",
  "logo": "https://cdn.www.e-mansion.co.jp/img/icon.png",
  "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": "Co",
  "url": "https://e-mansion.co.jp",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://e-mansion.co.jp/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 Co?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Co does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Co work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Co."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for e-mansion.co.jp:

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