note.com 52 D
🛡️ SEO 54 🤖 GEO 30 ⚡ Perf 62 🏗️ Arch 96

note.com — Global SEODiff Score 52/100

note.com
📊

note.com registers just 10/100 on the ACRI scale — a bottom-tier result indicating systemic AI visibility problems. Within the infrastructure vertical, this places note.com below the industry average of 57 —, indicating room for competitive improvement. Server-side rendering keeps the ghost ratio near zero, giving AI systems direct access to all visible content. The bloated 50.0× token ratio highlights an urgent need to clean up non-content markup, scripts, and navigation clutter. Only 1 schema block is present — adding Organization, WebSite, and Breadcrumb schemas would significantly improve structured data coverage. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

52
D — Global SEODiff Score
Comprehensive search visibility assessment
Below average — AI Readiness (30) has the most room for improvement.
🎯 Top Fix: Reduce token bloat (253×) → +5–10 pts
⚠️ Crawl Blocked: Rendering failed (SPA shell / render timeout)
🔬 Automated SEODiff Assessment · Snapshot: Mar 15, 2026 · 📋 API
📈 ACRI Trend 2 snapshots
Mar 7 Mar 15
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than note.com?
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)54 × 0.25 = 13.5
🤖 AI Readiness / GEO (40% weight)30 × 0.40 = 12.0
⚡ Performance (20% weight)62 × 0.20 = 12.4
🏗️ Architecture & Trust (15% weight)96 × 0.15 = 14.4
Weighted sum = 13.5 + 12.0 + 12.4 + 14.4
Global SEODiff Score = 52 (D)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
100
Structure
avg 35
2
Schema
avg 9
80
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.1%
Rank #1004
+77 pts
Gap
AI (ACRI)
Top 77%
Score 10/100

note.com punches above its weight in AI — AI visibility exceeds Google ranking. This is a competitive moat worth protecting. ACRI measures technical crawler readiness. Read the methodology →

Why note.com ranks here

Tech stackNuxt.js
RenderingSSR
Schema coverage1 blocks
Token bloat50×+

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…

⚠️ Crawl Failed: Anti-Bot Protection Detected

Rendering failed (SPA shell / render timeout)

The scores below may not reflect actual site quality. The crawler received a challenge page instead of real content.

🛡️

Traditional SEO

54/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

53 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

327 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✗ Has <h2> headings — found 0
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://note.com
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → ja-JP
  • ➖ Hreflang tags — N/A (single language site)
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — note ――つくる、つながる、とどける。
  • ✓ og:description — クリエイターが文章やマンガ、写真、音声を投稿することができ、ユーザーはそのコンテンツを楽しんで応援できるメディアプラットフォームです。だれもが創作を楽しんで続けられるよう、安心できる雰囲気や、多様性を大切にしています。
  • ✓ og:image — preview
  • ✗ 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

30/100 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 →
note.com
23
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…

AI Visibility Gap Notice

This domain ranks well in traditional search but shows low AI extractability in our automated analysis. Another domain scored higher in our AI retrieval tests for overlapping queries.

23
note.com ACRI
vs
90
safely.co.jp ACRI
67-point ACRI gap
safely.co.jp scored higher in AI extraction tests than note.com
Evidence Score: 55/100 Retrieval MismatchHallucination Risk253x Token Bloat
View Full Analysis → Run Hallucination Check

🤖 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 11 elements (11 lists, 0 rows, 0 headers)
Total Words17
Raw Density64.7%

🏷️ Schema Health Docs

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

Schema Coverage Map

1/7 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.

📐 AI Efficiency Metrics Docs

56
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability56/100 — AI models can partially extract answers from this page
Crawl CostMedium (45/100) — moderate for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

1%
🗑️ 99%
Useful Content (594 B)Bloat (146.0 KB)
Token Bloat Ratio50×+ — Bloated

Multimodal Readiness

Visual ContextNo images detected
Image Alt Coverage0 / 0 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Your HTML is 146.6 KB, but only 594 B is text. 1% useful / 99% bloat. AI crawlers have limited context windows (e.g. 128k tokens). This level of bloat (50×+) risks context-window truncation by ChatGPT, Claude, and Gemini. Reduce inline scripts, CSS, hydration payloads, and tracking code.

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 99.6% · SNR: 0.00 · Signal: 148 / Noise: 37370 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

FrameworkNuxt.js
AI-Readiness Score80/100
Server
CDN
HTTP Status200
Load Time1031 ms
Raw HTML Size146.6 KB
Visible Text Size594 B

Performance & Speed

62/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1031 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

141
DOM nodes
147 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → no-cache="Set-Cookie"
  • ✗ 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

96/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://note.com/sitemaps/production/note.com/sitemap.xml.gz
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

15
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-JP
  • ✓ 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 is currently blocking AI crawlers. Unblock them and rescan to earn your AI-Verified badge.

AI-Verified badge for note.com
Unverified — crawl access is blocked
<a href="https://seodiff.io/radar/domains/note.com" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=note.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 119 pages · Deep-10

Homepage ACRI
23
Single-page score
+12
Subpages outperform homepage
Δ delta
Site-Wide ACRI
35
Avg across 119 pages · Range 0–53
Topical Cohesion
21%
Topical Drift
TF-IDF cosine similarity
Total Words
12814
Avg Bloat
1326.9×
Page Type ACRI Token Bloat Words Status
https://note.com/contests/finished
募集を終了したお題・コンテスト|note(ノート)
other 53 162.9× 1682
https://note.com/contests
募集中のお題・コンテスト|note(ノート)
other 53 250.8× 985
https://note.com/yukiao
青山裕企|note
pricing 50 470.7× 227 💰 Pricing
https://note.com/hakuten_corp
HAKUTEN | 体験をつくるクリエイティブカンパニー|note
pricing 50 505.8× 217 💰 Pricing
https://note.com/nsalon
Nサロン-日経とnoteによる学びのコミュニティ-|note
pricing 40 883.7× 111 💰 Pricing
https://note.com/ikimono_gakari
いきものがかり|note
pricing 40 1048.3× 81 💰 Pricing
https://note.com/notemag
note編集部|note
pricing 40 861.2× 126 💰 Pricing
https://note.com/ga9ji
ga9ji|note
pricing 40 796.1× 121 💰 Pricing
https://note.com/events
noteイベント情報|note
pricing 40 800.7× 133 💰 Pricing
https://note.com/unityjapan
Unity Japan(ユニティ・テクノロジーズ・ジャパン)|note
pricing 40 680.0× 180 💰 Pricing
https://note.com/takeshobo
Takeshobo Books|note
pricing 40 900.6× 117 💰 Pricing
https://note.com/tiktok
TikTok Japan【公式】ティックトック|note
pricing 40 695.8× 157 💰 Pricing
https://note.com/tamochaos
漆畑美佳|note
pricing 40 1096.9× 85 💰 Pricing
https://note.com/info
note公式|note
pricing 40 901.5× 124 💰 Pricing
https://note.com/sugarcorp
SUGAR株式会社|note
pricing 40 812.4× 71 💰 Pricing
https://note.com/uuum_official
UUUM|note
pricing 40 1014.3× 87 💰 Pricing
https://note.com/zochang
zochang
pricing 40 796.0× 112 💰 Pricing
https://note.com/warc
株式会社WARC|note
pricing 40 841.5× 121 💰 Pricing
https://note.com/yuki_doro
松下ゆき|note
pricing 40 1058.8× 89 💰 Pricing
https://note.com/guchimarie
marie.iguchi|note
pricing 40 934.5× 116 💰 Pricing
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
/contests/ 2 53 1% 206.9× Bot Blocked
/sionnet/ 1 40 1% 800.6× Bot Blocked
/atusko0713/ 1 40 1% 988.9× Bot Blocked
/cakes/ 1 30 1% 3058.1× Bot Blocked
/hakuten_corp/ 1 50 1% 505.8× Bot Blocked
/ikimono_gakari/ 1 40 1% 1048.3× Bot Blocked
/note_gadget/ 1 40 1% 649.6× Bot Blocked
/pricing/ 1 30 1% 1924.3× Bot Blocked
/users/ 1 0 0% 0.0× Low AI Readiness
/wacom/ 1 40 1% 1091.1× Bot Blocked
/cuc_com/ 1 40 1% 837.8× Bot Blocked
/inabe_ayako/ 1 30 1% 4837.6× Bot Blocked
/bitkey/ 1 40 1% 820.5× Bot Blocked
/takeshobo/ 1 40 1% 900.6× Bot Blocked
/spla_premier/ 1 40 1% 579.2× Bot Blocked
🔗
Outbound External Citations
0 unique external domains cited across 119 pages
help-note.com ×109
premium.lp-note.com ×109
pro.lp-note.com ×109
terms.help-note.com ×109
twitter.com ×57
facebook.com ×36
youtube.com ×34
instagram.com ×26
🔄 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/note.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 note.com. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
note.com (this site) 23 10 Nuxt.js 252.6× 1
hdhub4u.me.in 48 15 WordPress 11.7× 1 Compare →
globalinside.co.uk 48 69 WordPress 7.6× 1 Compare →
rtvi.com 48 72 WordPress 6.0× 1 Compare →
workablemail.com 48 74 Next.js 19.7× 1 Compare →
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Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite note.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…

🎭

Bait & Switch Delta

F 15 PAGES

Compares your homepage rendering quality with inner pages. A high drift score means AI crawlers see a polished homepage but degraded inner content — the "bait & switch" that erodes trust.

30
Homepage ACRI
29
Inner Avg ACRI
+1
ACRI Delta
70%
Homepage Ghost
70%
Inner Avg Ghost
100
Drift Score [?]
Worst Inner Pages
30 70% pricing https://note.com/cakes
30 70% pricing https://note.com/ara_sakana
30 70% pricing https://note.com/turkeyzawa
🛡️

E-E-A-T Trust Signals

F 0/100

Trust indicators extracted from surface pages. These signals help AI systems verify your site's Experience, Expertise, Authoritativeness, and Trustworthiness.

Physical Address
Phone Number
Email Contact
About Page
Contact Page
Privacy Policy
Terms of Service
Named Leadership
🔗

Citation Profile

14 DOMAINS

Outbound citation patterns across surface-crawled pages. Sites that cite diverse, authoritative sources signal higher E-E-A-T to AI systems.

78
Total Links
14
Unique Domains
5.2
Avg/Page
18%
Diversity
pro.lp-note.com premium.lp-note.com help-note.com terms.help-note.com twitter.com instagram.com youtube.com facebook.com bc-l.jp ayuayusakan.base.ec
🏘️ Outbound Neighborhood Trust Avg Trust: 48.0

AI trust scores for the domains note.com links to. Citing high-trust sources lifts your own credibility signal.

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to note.com. 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": "Note",
  "url": "https://note.com",
  "logo": "https://assets.st-note.com/poc-image/manual/note-common-images/production/svg/production.ico",
  "sameAs": []
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 0% of your HTML is useful content. AI crawlers waste context window tokens on bloat.
html
<!-- Move inline CSS to external stylesheets -->
<link rel="stylesheet" href="/css/main.css">

<!-- Move inline scripts to external files with defer -->
<script src="/js/app.js" defer></script>

<!-- Remove duplicate navigation blocks -->
<!-- Keep only ONE <nav> in the <header> -->

<!-- Ensure <main> wraps your primary content -->
<main>
  <!-- Your content here — this is what AI sees first -->
</main>
📈

Projected Impact

ROI EST.

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

Current Score
10
Projected Score
21
Improvement
+11 pts
Add Organization schema +6 pts
Reduce token bloat +5 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

🧠 AI Citation Graph

How this domain is cited across the machine-readable web

13.4
AI-Trust
#279
Global Rank
84%
Percentile
64
Inbound AI Links
4
Outbound AI Links
60
Avg Inbound ACRI
11%
AI-Restricted Backlinks
Top AI Referrers
Domain ACRI AI-Trust Direction
2nd-train.net 82 0.0 ← cites you
tabio.com 77 0.0 ← cites you
kyoto-np.co.jp 76 0.0 ← cites you
route-inn.co.jp 76 0.0 ← cites you
linebiz.com 75 0.0 ← cites you
lycbiz.com 75 0.0 ← cites you
ttrinity.jp 74 0.0 ← cites you
heroz.jp 73 0.0 ← cites you
jtb.co.jp 73 0.0 ← cites you
4ndan.com 72 0.0 ← cites you
View Full AI-Trust Leaderboard →
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
Free Deep Audit → GSC Error Guide →