sunplan-co.jp 64 C
🛡️ SEO 55 🤖 GEO 62 ⚡ Perf 68 🏗️ Arch 79
Radar → Domains → sunplan-co.jp

sunplan-co.jp — Global SEODiff Score 64/100

sunplan-co.jp
📊

sunplan-co.jp shows strong AI visibility with an ACRI of 81/100, outperforming 95% of indexed domains. Compared to other infrastructure sites (avg score: 58), sunplan-co.jp performs above the benchmark, 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. A tight 3.1× token bloat ratio reflects disciplined markup: minimal noise between the crawler and the content it needs. Structured data coverage is solid at 2 blocks, covering core entities — expanding to include FAQ or Breadcrumb schemas could strengthen the profile further. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

64
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (55) is your bottleneck.
🎯 Top Fix: Fix title tag length → +3 pts
55
🛡️ Traditional SEO
62
🤖 AI Readiness
68
⚡ Performance
79
🏗️ Architecture
🔬 Automated SEODiff Assessment · Snapshot: Feb 25, 2026 · 📋 API
📈 ACRI Trend 2 snapshots
Feb 23 Feb 25
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than sunplan-co.jp?
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)55 × 0.25 = 13.8
🤖 AI Readiness / GEO (40% weight)62 × 0.40 = 24.8
⚡ Performance (20% weight)68 × 0.20 = 13.6
🏗️ Architecture & Trust (15% weight)79 × 0.15 = 11.8
Weighted sum = 13.8 + 24.8 + 13.6 + 11.8
Global SEODiff Score = 64 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
71
Structure
avg 36
44
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 50%+
Rank #612978
-56 pts
Gap
AI (ACRI)
Top 5%
Score 81/100

sunplan-co.jp ranks much higher on Google (Tranco Top 50%+) than in AI search (Top 5%). This is the 'Invisible Giant' pattern — implement the patches above to close the AI gap. ACRI measures technical crawler readiness. Read the methodology →

Why sunplan-co.jp ranks here

Tech stackCustom / Proprietary
Industryinfrastructure
RenderingSSR
Schema coverage2 blocks
Token bloat3.1×

Fastest improvements

  • You’re already in decent shape — the next moat is monitoring drift over time.
  • 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…
See other Custom / Proprietary sites → infrastructure industry → Full leaderboard → Domain A–Z →
🛡️

Traditional SEO

55/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

141 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

461 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://sunplan-co.jp
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → ja
  • ✗ Hreflang tags
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — 株式会社サンプラン | 道路舗装工事や土木工事を通し、社会基盤の整備、安全で快適な環境・空間づくり
  • ✓ og:description — 道路舗装工事、土木工事を承っております。 道路の舗装工事や土木工事を通して、社会基盤の整備に積極的に取り組み、安全で快適な環境・空間づくりに努めております。 職人が培ってきた技術と経験を生かし施工をご提案させていただきます。道路舗装工事、土木工事のことなら「株式会社サンプラン」へお問い合わせ、ご相談ください。
  • ✓ 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

62/100 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 →
sunplan-co.jp
59
Your ACRI Score
→
safely.co.jp
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 71/100 — Good
Structured Elements 9 elements (9 lists, 0 rows, 0 headers)
Total Words60
Raw Density15.0%

🏷️ Schema Health Docs

Organization Schema ✅ Present
Product / Service Schema ⚠️ Not Found
Total Schema Blocks2 block(s) — Basic (low value for AI)

Schema Coverage Map

2/7 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.
💡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.

📐 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 (10/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

32%
🗑️ 68%
Useful Content (4.5 KB)Bloat (9.3 KB)
Token Bloat Ratio3.1× — Lean

Multimodal Readiness

Visual Context36% Optimized for Vision
Image Alt Coverage5 / 14 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 36% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

48 Entropy
Fair Token Bloat: Medium
Noise Ratio: 67.4% · SNR: 0.48 · Signal: 1154 / Noise: 2381 tokens
Run Full Entropy Audit →

🔬 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

FrameworkCustom / Proprietary
AI-Readiness Score50/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time1209 ms
Raw HTML Size13.8 KB
Visible Text Size4.5 KB
⚡

Performance & Speed

68/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1209 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

176
DOM nodes
14 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✓ CDN cache status → DYNAMIC
  • ✓ CDN detected → cloudflare

🔬 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

79/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → http://cdn.attracta.com/sitemap/6108287.xml.gz
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

13
internal links
2
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 59/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
sunplan-co.jp (this site) 59 81 Custom / Proprietary 3.1× 2 —
footballstore.ru 84 86 Custom / Proprietary 1.9× 2 Compare →
amberpiece.com 84 86 Custom / Proprietary 1.8× 2 Compare →
eko-bike.ru 84 87 Custom / Proprietary 3.8× 3 Compare →
pdftoword.55.la 84 87 Custom / Proprietary 2.3× 3 Compare →
motocare.co.in 84 91 Custom / Proprietary 1.8× 1 Compare →
Compare All 5 Similar Sites →

📋 Data Export

Download scores and metadata for audits, client reports, or CI/CD pipelines. Exports contain computed metrics only (no copyrighted content).

📄 Generate llms.txt 📊 Export JSON Data 📸 Download Visual

All data is generated automatically and updated with each crawl. JSON exports contain scores and metadata only (no copyrighted content).

Is this your company?

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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
Open My Site report → Open Self-Diffing incidents → Open History timeline →

🕒 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

📚 Research & Documentation

🔬
The Science of ACRI
Methodology behind the AI-Crawler Reality Index scoring model.
🚨
Hallucination Risk Study
How poor crawl access increases AI fabrication rates by 3.5×.
🔥
Structural Entropy Paper
The median web page wastes 55% of tokens on noise. Here's the data.
🧪
Extraction Lab Paper
Causal evidence that semantic HTML structure increases AI extraction accuracy.
📖
Documentation Hub
Metrics definitions, fix guides, and API reference for CI/CD integration.
🛠️
Free Tools
llms.txt generator, hallucination checker, entropy audit, and more.