serai.jp 72 B
🛡️ SEO 67 🤖 GEO 88 ⚡ Perf 39 🏗️ Arch 80

serai.jp — Global SEODiff Score 72/100

serai.jp
📊

With an ACRI of 90/100, serai.jp stands out as one of the highest-performing sites in AI search visibility, outranking 99% of its peers. Compared to other infrastructure sites (avg score: 57), serai.jp performs above the benchmark, 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. A tight 4.4× token bloat ratio reflects disciplined markup: minimal noise between the crawler and the content it needs. Minimal structured data (1 block) limits the site's ability to communicate entity relationships to AI systems. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

72
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (39) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 7 snapshots
Feb 23 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than serai.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)67 × 0.25 = 16.8
🤖 AI Readiness / GEO (40% weight)88 × 0.40 = 35.2
⚡ Performance (20% weight)39 × 0.20 = 7.8
🏗️ Architecture & Trust (15% weight)80 × 0.15 = 12.0
Weighted sum = 16.8 + 35.2 + 7.8 + 12.0
Global SEODiff Score = 72 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
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 15%
Rank #152248
-14 pts
Gap
AI (ACRI)
Top 1%
Score 90/100

serai.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 serai.jp ranks here

Tech stackWordPress
RenderingSSR
Schema coverage1 blocks
Token bloat4.4×

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…
🛡️

Traditional SEO

67/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

63 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 25
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://serai.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 — サライ.jp|小学館の雑誌『サライ』公式サイト
  • ✓ og:description — 小学館の雑誌『サライ』の公式サイトです。歳を重ね、よりアクティブに行動したいと思っている大人の方々へのライフスタイル提案と、旅、食、人物、歴史、文化、趣味、健康、モノ情報など上質な情報を発信します。
  • ✓ 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

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 →
serai.jp
76
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 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 200 elements (200 lists, 0 rows, 0 headers)
Total Words610
Raw Density32.8%

🏷️ 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
None
Blocklist Risk
Extractability86/100 — AI models can easily extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

22%
🗑️ 78%
Useful Content (43.4 KB)Bloat (149.2 KB)
Token Bloat Ratio4.4× — Lean

Multimodal Readiness

Visual Context21% Optimized for Vision
Image Alt Coverage25 / 117 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 21% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

15 Entropy
Poor Token Bloat: High
Noise Ratio: 77.5% · SNR: 0.29 · Signal: 11104 / Noise: 38201 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 serai.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
提供上質的资讯和生活方式提案
Target Audience
活跃行动的大人
Pricing Model
免费/付费内容
Analyzed by SEODiff AI · 2026-02-26

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
Servernginx/1.26.0
CDN
HTTP Status200
Load Time1518 ms
Raw HTML Size192.6 KB
Visible Text Size43.4 KB

Performance & Speed

39/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1518 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1660
DOM nodes
193 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✗ CDN cache status
  • ✗ CDN detected

🔬 Tracker Tax

2
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

80/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://serai.jp/sitemap.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

393
internal links
39
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 76/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for serai.jp
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/serai.jp" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=serai.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 1010 pages · Deep-10

Homepage ACRI
76
Single-page score
-24
Severe hidden bloat
Δ delta
Site-Wide ACRI
52
Avg across 1010 pages · Range 0–67
🔍
Hidden Bloat Detected

Homepage scores 76, but internal pages average only 52 — a -24-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Total Words
203766
Avg Bloat
136.9×
Page Type ACRI Token Bloat Words Status
https://serai.jp/hobby/1247489
“McDonald”の “Mc” ってなに?【英語の泉】 | サライ.jp|小学館の雑誌『サライ』公式サイト
pricing 67 56.0× 512 💰 Pricing
https://serai.jp/hobby/1242630
“No worries.”の意味は?| “Don’t worry.”とどう違うの?【英語の泉】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 67 55.2× 522
https://serai.jp/hobby/1246550
松平定信は、はたして暗君であったのか? 蔦屋重三郎の敵役の意外な真実 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 138.2× 204
https://serai.jp/living/1249977
いくつもの失敗と挫折を乗り越えて、キリスト教の歴史を刻んだ教皇ペトロの人物像(キリスト教と魚5)【異文化リテラシー レッスン41】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 140.2× 205
https://serai.jp/business/1242033
【ビジネスの極意】「インシデント」とは? 企業を守るリスク管理方法と対策を解説 | サライ.jp|小学館の雑誌『サライ』公式サイト
pricing 60 109.4× 277 💰 Pricing
https://serai.jp/living/1190287
Google マップで「ルート検索」するには?|スマホでできるGoogleのルート検索の基本と便利な使い方【Google活用基本のき】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 112.4× 269
https://serai.jp/premium/car-serai_premium
CARに関する記事一覧 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 79.2× 219
https://serai.jp/business/1246942
「成長できる環境」を求める人ほど、成長できない!【ビジネス最前線】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 124.5× 229
https://serai.jp/living/1042692
遺言書の検認とは?|しないと無効? 遺言書の検認の必要書類や申立方法を徹底解説【お金の学校】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 120.6× 247
https://serai.jp/business/1253132
“努力賞”は組織の成長を阻害する! 結果のみで評価することの4つのメリット【ビジネス最前線】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 142.8× 201
https://serai.jp/hobby/1256331
「殺してしまえホトトギス」~信長の実像~を「秀吉の調略」「弟・信勝殺害」から考察【豊臣兄弟! 満喫リポート】6 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 144.3× 205
https://serai.jp/business/1238643
【ビジネスの極意】コンピテンシーとは?|能力との違い、ハイパフォーマーの人材評価への活用や導入手順を解説 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 112.0× 261
https://serai.jp/premium/art-and-fashion-serai_premium
ART & FASHIONに関する記事一覧 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 77.5× 212
https://serai.jp/item/1257145
“着る”は愉しい! 着丈に注目することも選択のヒントにしたい、旅の相棒コート探し | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 75.5× 217
https://serai.jp/business/1253029
どんな組織でも結果を出す人の思考法とは?【ビジネスの極意】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 127.0× 228
https://serai.jp/hobby/1257030
秀吉による「墨俣築城」秘話はどう描かれる? やっぱりこのエピソードは外せない!【豊臣兄弟! 満喫リポート】7 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 140.7× 216
https://serai.jp/hobby/1256706
沢田研二が演じた孤独な男|『太陽を盗んだ男』【面白すぎる日本映画 第111回】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 134.8× 208
https://serai.jp/tour/1256084
百年の時を宿す建物たち。台湾・台北で歴史的建造物を巡る旅のすすめ | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 139.7× 207
https://serai.jp/gourmet/1241234
飲みやすい日本酒とは?|フルーティー、甘口の日本酒を徹底解説【日本酒のススメ】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 121.1× 240
https://serai.jp/hobby/1107421
雨水とは「春が動き出す日」|行事・花・旬の食材で味わう季節の知恵【「二十四節気」入門】 | サライ.jp|小学館の雑誌『サライ』公式サイト
other 60 122.8× 246
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
/hobby/ 156 58 0% 122.2× High JS Bloat
/living/ 109 57 0% 125.7× High JS Bloat
/health/ 67 58 0% 126.5× High JS Bloat
/gourmet/ 56 58 0% 126.4× High JS Bloat
/business/ 36 60 0% 124.0× High JS Bloat
/tour/ 21 57 0% 125.0× High JS Bloat
/event/ 15 57 0% 120.0× High JS Bloat
/premium/ 10 55 0% 92.1× High JS Bloat
/kajin/ 9 57 0% 96.3× High JS Bloat
/house/ 4 57 0% 110.7× High JS Bloat
/item/ 4 58 0% 101.7× High JS Bloat
/news/ 2 57 0% 114.8× High JS Bloat
/thirteen/ 1 57 0% 118.2× High JS Bloat
/fp/ 1 57 0% 120.2× High JS Bloat
/サライ/ 1 57 0% 113.9× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 1010 pages
instagram.com ×1000
pal-shop.jp ×999
line.me ×984
ja-jp.facebook.com ×984
realkitchen-interior.com ×983
shogakukan.tameshiyo.me ×983
shogakukan.co.jp ×983
twitter.com ×983
🔄 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/serai.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 serai.jp. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
serai.jp (this site) 76 90 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 serai.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 serai.jp. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for serai.jp:

Current Score
90
Projected Score
96
Improvement
+6 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?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
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