What is aco.co.jp's AI readiness score?

aco.co.jp scores 79/100 on SEODiff's AI-Readiness Index, placing it in the Strong range. The ACRI (AI-Crawler Reality Index) score is 75/100 (Grade B).

What tech stack does aco.co.jp use?

aco.co.jp uses Custom / Proprietary as its primary framework with a 5% ghost ratio (SSR rendering).

Is aco.co.jp visible to AI crawlers like ChatGPT?

GPTBot access: Allowed. ClaudeBot access: Allowed. aco.co.jp has 4 structured data blocks and a token bloat ratio of 1.9x.

aco.co.jp SEO & AI Readiness Score: 69/100 (C) — Full Technical Audit

📊

With a solid 79/100 ACRI, aco.co.jp is well-positioned for AI search — better than 91% of sites in the Radar. Within the infrastructure vertical, this places aco.co.jp above the industry average of 57 —, suggesting strong competitive positioning in AI search. Its server-rendered architecture ensures AI crawlers receive complete HTML on first request, a key advantage for extractability. The token bloat ratio sits at a lean 1.9×, meaning the ratio of code to visible content is efficient — crawlers spend their token budget on actual information. With 4 JSON-LD schema blocks, the site provides explicit machine-readable metadata that enhances AI comprehension. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

C — Global SEODiff Score

Comprehensive search visibility assessment

Strong foundations, but Performance (39) is your bottleneck.

🎯 Top Fix: Fix title tag length → +3 pts

🔬 Automated SEODiff Assessment · Snapshot: Mar 19, 2026 · 📋 API

📈 ACRI Trend 4 snapshots

Feb 24 Mar 19

🔔 Recent AI Indexing Activity

🔄 Mar 19 Content change detected

Does your site score higher than aco.co.jp?

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🧮 Score Transparency — How is this calculated?

🛡️ Traditional SEO (25% weight)63 × 0.25 = 15.8

🤖 AI Readiness / GEO (40% weight)88 × 0.40 = 35.2

⚡ Performance (20% weight)39 × 0.20 = 7.8

🏗️ Architecture & Trust (15% weight)70 × 0.15 = 10.5

Weighted sum = 15.8 + 35.2 + 7.8 + 10.5

Global SEODiff Score = 69 (C)

📊 ACRI Sub-Scores (AI Readiness Detail)

100

Bot Access

avg 92

Rendering

avg 93

Structure

avg 35

Schema

avg 9

Tech Stack

avg 63

🔀

Visibility Delta: Google vs AI

Google (Tranco)

Top 50%+

Rank #516568

-42 pts

Gap

AI (ACRI)

Top 9%

Score 79/100

aco.co.jp ranks much higher on Google (Tranco Top 50%+) than in AI search (Top 9%). This is the 'Visibility Gap' pattern — implementing the recommendations above can help close the AI gap. ACRI measures technical crawler readiness. Read the methodology →

Why aco.co.jp ranks here

Tech stackCustom / Proprietary

Industryinfrastructure

RenderingSSR

Schema coverage4 blocks

Token bloat1.9×

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…

Overview 🛡️ SEO 🤖 GEO ⚡ Perf 🏗️ Arch Export

See other Custom / Proprietary sites → infrastructure industry → Full leaderboard → Domain A–Z →

🛡️

Traditional SEO

63/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

93 chars

Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

204 chars

Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

✓ Exactly 1 <h1> tag — found 1
✓ Has <h2> headings — found 63
✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

✗ og:title
✗ og:description
✗ og:image
✗ twitter:card

📐 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 →

aco.co.jp

Your ACRI Score

→

safely.co.jp

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 61/100 — Good

Structured Elements 101 elements (101 lists, 0 rows, 0 headers)

Total Words914

Raw Density11.1%

🏷️ Schema Health Docs

Organization Schema ✅ Present

Product / Service Schema ⚠️ Not Found

Total Schema Blocks4 blocks

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.

💡BreadcrumbList schema missing. AI cannot understand your site hierarchy or how pages relate to each other.

📐 AI Efficiency Metrics Docs

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

52%

🗑️ 48%

Useful Content (143.2 KB)Bloat (123.3 KB)

Token Bloat Ratio1.9× — Lean

Multimodal Readiness

Visual Context100% Optimized for Vision

Image Alt Coverage14 / 14 images have alt text

TDM Rights

TDM-Reservation HeaderNot set

X-Robots-Tag: noaiNot set

🔥 Structural Entropy Check Research

78 Entropy

Good Token Bloat: Low

Noise Ratio: 46.3% · SNR: 1.16 · Signal: 36658 / Noise: 31565 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…

🧠

The LLM Interpretation

AI-VERIFIED

SEODiff AI analyzed the extracted content of aco.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

ACO provides a specialized booking platform for vacation rentals, connecting owners with guests.

Target Audience

Property owners, vacation rental managers, travelers seeking unique accommodations

Pricing Model

⚠ SEMANTIC VOID

🏆 Competitive Moat

Focus on vacation rentals and direct owner connections.

📊 Content Depth

3/10

Analyzed by SEODiff AI · 2026-03-24

🔧 Tech Stack

FrameworkCustom / Proprietary

AI-Readiness Score50/100

Servernginx

CDN—

HTTP Status200

Load Time1327 ms

Raw HTML Size266.5 KB

Visible Text Size143.2 KB

⚡

Performance & Speed

39/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1327 ms

Slow — bots may time out or deprioritise

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

📦 Page Weight

1816
DOM nodes

266 KB
HTML payload

Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

✓ Cache-Control header → max-age=10800
✗ CDN cache status
✗ CDN detected

🔬 Tracker Tax

1
tracker scripts

1
third-party domains

0.0%
token overhead

Minimal tracker load — clean signal for bots

googletagmanager.com

📐 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

128
internal links

0
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.

Pending Audit — score below 80 threshold

<a href="https://seodiff.io/radar/domains/aco.co.jp" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=aco.co.jp" alt="AI-Verified by SEODiff" width="280" height="52"></a>

[![AI-Verified by SEODiff](https://seodiff.io/api/v1/badge?domain=aco.co.jp)](https://seodiff.io/radar/domains/aco.co.jp)

💡 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

Single-page score

-75

Severe hidden bloat

Δ delta

Site-Wide ACRI

Avg across 10 pages · Range 0–0

🔍

Hidden Bloat Detected

Homepage scores 75, but internal pages average only 0 — a -75-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Total Words

Avg Bloat

0.0×

Page	Type	Token Bloat	Status
https://aco.co.jp/pricing	pricing	0.0×	✓
https://aco.co.jp/about	about	0.0×	✓
https://aco.co.jp/products	product	0.0×	✓
https://aco.co.jp/features	product	0.0×	✓
https://aco.co.jp/blog	blog	0.0×	✓
https://aco.co.jp/docs	docs	0.0×	✓
https://aco.co.jp/case-studies	social-proof	0.0×	✓
https://aco.co.jp/contact	support	0.0×	✓
https://aco.co.jp/faq	support	0.0×	✓
https://aco.co.jp/integrations	integrations	0.0×	✓

📂

Health by Sub-Directory

Average ACRI and top issues aggregated by URL path prefix

Path	Pages	Ghost %	Bloat	Top Issue
/blog/	1	0%	0.0×	Low AI Readiness
/features/	1	0%	0.0×	Low AI Readiness
/docs/	1	0%	0.0×	Low AI Readiness
/contact/	1	0%	0.0×	Low AI Readiness
/pricing/	1	0%	0.0×	Low AI Readiness
/about/	1	0%	0.0×	Low AI Readiness
/products/	1	0%	0.0×	Low AI Readiness
/case-studies/	1	0%	0.0×	Low AI Readiness
/faq/	1	0%	0.0×	Low AI Readiness
/integrations/	1	0%	0.0×	Low AI Readiness

🔄 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/aco.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 aco.co.jp. Compare side-by-side.

Domain	ACRI	AI Score	Tech Stack	Token Bloat	Schema
aco.co.jp (this site)	75	79	Custom / Proprietary	1.9×	4	—
kondela.hu	86	93	Custom / Proprietary	3.1×	4	Compare →
safescan.com	86	87	Custom / Proprietary	1.9×	5	Compare →
insuranceyet.com	86	87	Custom / Proprietary	4.9×	4	Compare →
kruizinga.nl	87	93	Custom / Proprietary	3.0×	5	Compare →
hachimenroppi.com	89	88	Custom / Proprietary	2.1×	6	Compare →

Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite aco.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…

📋 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

Orphans & Hubs

Deep Audit sections

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

Why aco.co.jp ranks here

Fastest improvements

JavaScript Rendering Check

Traditional SEO

📝 Title Tag

📋 Meta Description

🔤 Heading Hierarchy

🔍 Indexability

🌐 Social / OpenGraph

AI Readiness / GEO

Citation Alternatives

Hallucination Risk

Hallucination Risk Assessment

🤖 Bot Access Matrix

👻 Rendering (Ghost Ratio) Docs

📊 Structure & Information Density Docs

🏷️ Schema Health Docs

Schema Coverage Map

📐 AI Efficiency Metrics Docs

Token Bloat Research

Multimodal Readiness

TDM Rights

🔥 Structural Entropy Check Research

🔬 AI-Crawler Simulation

📐 Semantic Structure

🧩 Content Chunks

🤖 What Each Bot Sees

AI Answer Preview

The LLM Interpretation

🔧 Tech Stack

Performance & Speed

⏱️ Time to First Byte

📦 Page Weight

🗄️ Cache & CDN

🔬 Tracker Tax

Architecture & Trust

🗺️ Sitemap & Robots

🔗 Linking

🔒 Security & Trust

♿ Accessibility Signals

🏅 AI-Verified Trust Badge

� Deep Crawl Analysis 10 pages · Deep-10

🔌 API Access

🔗 Similar infrastructure Sites

📊 Semantic Share of Voice

📧 Get your full report data

📋 Data Export

Is this your company?

🧭 Self-Diffing (Private Layer)

🕒 History

📚 Research & Documentation