yamahack.com 75 B
🛡️ SEO 63 🤖 GEO 85 ⚡ Perf 59 🏗️ Arch 91

yamahack.com — Global SEODiff Score 75/100

yamahack.com
📊

The AI-Readiness profile for yamahack.com is strong: an ACRI of 78/100 places it ahead of 88% of domains in the index. Compared to other infrastructure sites (avg score: 57), yamahack.com performs above the benchmark, 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 4.4×, meaning the ratio of code to visible content is efficient — crawlers spend their token budget on actual information. Minimal structured data (1 block) limits the site's ability to communicate entity relationships to AI systems. Partial bot access means the domain is visible to some AI systems but not accessible to others — GPTBot remain blocked.

75
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (59) is your bottleneck.
🎯 Top Fix: Fix title tag length → +3 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 20, 2026 · 📋 API
📈 ACRI Trend 5 snapshots
Mar 2 Mar 20
🔔 Recent AI Indexing Activity
📈 Mar 20 ACRI +1 (68→69)
🔄 Mar 18 Content change detected
Does your site score higher than yamahack.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)85 × 0.40 = 34.0
⚡ Performance (20% weight)59 × 0.20 = 11.8
🏗️ Architecture & Trust (15% weight)91 × 0.15 = 13.7
Weighted sum = 15.8 + 34.0 + 11.8 + 13.7
Global SEODiff Score = 75 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
60
Bot Access
avg 92
100
Rendering
avg 93
100
Structure
avg 35
42
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 17%
Rank #165744
Aligned
Gap
AI (ACRI)
Top 12%
Score 78/100

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

Why yamahack.com ranks here

Tech stackWordPress
RenderingSSR
Schema coverage1 blocks
Token bloat4.4×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • 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

93 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

297 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 8
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://yamahack.com
  • ✓ 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 — 登山メディアYAMA HACK(ヤマハック)|山の“知りたい“がここにある
  • ✓ og:description — YAMA HACK(ヤマハック)は、日本最大級の登山WEBメディア。登山ギアや最新のウェア、山情報、ノウハウなど、安全に山を楽しむための情報が充実。初心者からベテランまで、あなたの“知りたい“がきっと見つかります。
  • ✓ 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

85/100 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 →
yamahack.com
69
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)
Blocked
ClaudeBot (Anthropic)
Allowed
CCBot (Common Crawl)
Blocked
Google-Extended
Allowed
Googlebot
Allowed
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.

👻 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 125 elements (125 lists, 0 rows, 0 headers)
Total Words310
Raw Density40.3%

🏷️ 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

86
AI Extractability
Low
Crawl Cost
Medium
Blocklist Risk
Extractability86/100 — AI models can easily extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskMedium — 2 of 5 AI crawlers blocked

Token Bloat Research

22%
🗑️ 78%
Useful Content (38.7 KB)Bloat (130.4 KB)
Token Bloat Ratio4.4× — Lean

Multimodal Readiness

Visual Context89% Optimized for Vision
Image Alt Coverage64 / 72 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

15 Entropy
Poor Token Bloat: High
Noise Ratio: 77.1% · SNR: 0.30 · Signal: 9900 / Noise: 33373 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 yamahack.com 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
YAMA HACK is a Japan-based web media dedicated to providing information content for people interested in hiking and outdoor activities,
Target Audience
Hikers, outdoor enthusiasts, people interested in starting hiking, mountain guides, and outdoor professionals.
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Largest Japanese hiking web media with a vast content library and strong community engagement.
📊 Content Depth
7/10
⚡ Key Pain Points
• Limited SEO data available for analysis
Analyzed by SEODiff AI · 2026-03-08

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
Servernginx/1.26.3
CDN
HTTP Status200
Load Time503 ms
Raw HTML Size169.0 KB
Visible Text Size38.7 KB

Performance & Speed

59/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

503 ms
Acceptable — room for improvement

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

📦 Page Weight

912
DOM nodes
169 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=600,stale-while-revalidate=86400
  • ✗ 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
doubleclick.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

91/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://yamahack.com/sitemap.xml
  • ✓ Googlebot allowed
  • ✗ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

180
internal links
21
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 69/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for yamahack.com
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/yamahack.com" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=yamahack.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
69
Single-page score
-59
Severe hidden bloat
Δ delta
Site-Wide ACRI
10
Avg across 10 pages · Range 0–56
🔍
Hidden Bloat Detected

Homepage scores 69, but internal pages average only 10 — a -59-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
63%
Moderate Drift
TF-IDF cosine similarity
Total Words
399
Avg Bloat
16.2×
Page Type ACRI Token Bloat Words Status
https://yamahack.com/contact support 56 15.0× 301
https://yamahack.com/about
YAMA HACKとは | YAMA HACK[ヤマハック]
pricing 47 146.7× 98 💰 Pricing
https://yamahack.com/pricing pricing 0 0.0× 0
https://yamahack.com/products product 0 0.0× 0
https://yamahack.com/features product 0 0.0× 0
https://yamahack.com/blog blog 0 0.0× 0
https://yamahack.com/docs docs 0 0.0× 0
https://yamahack.com/case-studies social-proof 0 0.0× 0
https://yamahack.com/faq support 0 0.0× 0
https://yamahack.com/integrations integrations 0 0.0× 0
📂
Health by Sub-Directory
Average ACRI and top issues aggregated by URL path prefix
Path Pages Avg ACRI Ghost % Bloat Top Issue
/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
/blog/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/faq/ 1 0 0% 0.0× Low AI Readiness
/integrations/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 56 0% 15.0× High JS Bloat
/about/ 1 47 0% 146.7× High JS Bloat
/pricing/ 1 0 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/yamahack.com

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
yamahack.com (this site) 69 78 WordPress 4.4× 1
profitserver.net 86 90 WordPress 3.8× 2 Compare →
driphydration.com 86 95 WordPress 1.9× 2 Compare →
safely.co.jp 90 90 WordPress 1.9× 3 Compare →
hi-ad.jp 86 90 WordPress 3.1× 5 Compare →
meriambet.us.com 87 95 WordPress 4.1× 6 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite yamahack.com 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 yamahack.com. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

Allow GPTBot in robots.txt
High Impact ⏱ 2 min
GPTBot is blocked — your content cannot appear in ChatGPT citations. Add this to your robots.txt:
text
User-agent: GPTBot
Allow: /

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

Projected Impact

ROI EST.

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

Current Score
78
Projected Score
92
Improvement
+14 pts
Allow GPTBot +8 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
🔍 Found indexing issues?
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