line.me 63 C
🛡️ SEO 50 🤖 GEO 75 ⚡ Perf 55 🏗️ Arch 60

line.me — Global SEODiff Score 63/100

line.me
📋 Executive Audit

LINE.me operates as a core digital infrastructure platform under LY Corporation, offering a suite of communication and subscription-based services with a global user base. Its Global SEODiff Score of 63 places it in the mid-tier range for search visibility, though its ACRI Grade of D (47) indicates significant room for improvement in content quality and search relevance. While the site performs moderately on technical SEO and AI readiness—scoring 75 on AI Readiness GEO and 78 on Extractability—key weaknesses in content integrity (31) and retrieval robustness (28) suggest structural and semantic issues that hinder effective indexing and ranking. The Tranco Rank of 444 reflects strong global traffic, but this does not fully translate to optimized search visibility.

The site demonstrates solid technical foundations: it uses Gatsby, a modern static site framework, with a relatively low ghost ratio (5.0%) and acceptable token bloat (3.5x). However, performance is hampered by a high TTFB of 2,333ms, indicating server-side delays despite a lightweight HTML payload (35.4 KB). The low word count (318) and limited useful text (10,271 bytes) suggest sparse on-page content, contributing to poor content integrity and semantic structure scores. While AI bots are permitted and no AI-blocking meta tags exist, the absence of structured data—including no Organization, Website, or Breadcrumb markup—limits machine understanding and rich snippet potential. The lack of a declared sitemap further reduces crawl efficiency.

Architecturally, the site shows minimal internal linking (13 links) and very few external references (2), indicating a weak link equity distribution and limited topical authority signaling. The Gini coefficient (not provided) would likely reflect high inequality in link distribution if available. With no HSTS or CSP headers, security posture is suboptimal, though the site does enforce HTTPS. To improve, LINE.me should prioritize enriching core pages with high-quality, original content, implement comprehensive structured data, and publish a sitemap. Enhancing TTFB through backend optimization and expanding internal linking will further strengthen its SEO architecture and position for AI-driven search.

✦ Executive Audit synthesized by SEODiff AI · Mar 4, 2026
63
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (50) is your bottleneck.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 4 snapshots
Feb 28 Mar 13
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)50 × 0.25 = 12.5
🤖 AI Readiness / GEO (40% weight)75 × 0.40 = 30.0
⚡ Performance (20% weight)55 × 0.20 = 11.0
🏗️ Architecture & Trust (15% weight)60 × 0.15 = 9.0
Weighted sum = 12.5 + 30.0 + 11.0 + 9.0
Global SEODiff Score = 63 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
48
Structure
avg 35
0
Schema
avg 9
75
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.1%
Rank #444
+27 pts
Gap
AI (ACRI)
Top 27%
Score 72/100

line.me 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 line.me ranks here

Tech stackGatsby
RenderingSSR
Schema coverage0 blocks
Token bloat3.5×

Fastest improvements

  • Add basic Organization and WebSite JSON-LD to fix “0 schema blocks” (see Schema Coverage).
  • 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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

27 chars
Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

108 chars
Too short

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 3
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✗ Canonical tag present
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → en
  • ➖ Hreflang tags — N/A (single language site)
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — LINE|always at your side.
  • ✓ og:description — More than just a messenger app. LINE is new level of communication and the very infrastructure of your life.
  • ✓ 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

75/100 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 →
line.me
47
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 5%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 48/100 — Fair
Structured Elements 22 elements (22 lists, 0 rows, 0 headers)
Total Words318
Raw Density6.9%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks0 — No JSON-LD detected

Schema Coverage Map

0/7 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.
💡WebSite schema missing. Add WebSite + SearchAction so Google can generate a Sitelinks Search Box for your brand in AI results.

📐 AI Efficiency Metrics Docs

59
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability59/100 — AI models can partially 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

28%
🗑️ 72%
Useful Content (10.0 KB)Bloat (25.3 KB)
Token Bloat Ratio3.5× — Lean

Multimodal Readiness

Visual Context0% Optimized for Vision
Image Alt Coverage0 / 22 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 0% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

38 Entropy
Poor Token Bloat: High
Noise Ratio: 71.7% · SNR: 0.40 · Signal: 2567 / Noise: 6489 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 line.me 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
LY Corporation provides terms of use for its services, including software and other products, with conditions for use, account registration, and subscription services.
Target Audience
Users, businesses, minors with parental consent, enterprises
Pricing Model
Subscription services with fixed fees, charges for use
🏆 Competitive Moat
Not explicitly mentioned
📊 Content Depth
1/10
🔄 Programmatic SEO Signals
Individual Conditions of Use pagesSubscription Services pages
⚡ Key Pain Points
• No core offering description
• Limited content depth
• Generic language without specific product details
Analyzed by SEODiff AI · 2026-02-27

🔧 Tech Stack

FrameworkGatsby
AI-Readiness Score75/100
ServerVOS
CDN
HTTP Status200
Load Time8891 ms
Raw HTML Size35.4 KB
Visible Text Size10.0 KB

Performance & Speed

55/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

8891 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

192
DOM nodes
35 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✓ Cache-Control header → public,max-age=300
  • ✗ 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

60/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✗ Sitemap declared in robots.txt
  • ✓ 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 → en
  • ✓ 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 47/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for line.me
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/line.me" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=line.me" 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 23 pages · Deep-10

Homepage ACRI
47
Single-page score
-42
Severe hidden bloat
Δ delta
Site-Wide ACRI
5
Avg across 23 pages · Range 0–87
🔍
Hidden Bloat Detected

Homepage scores 47, but internal pages average only 5 — a -42-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
1%
Topical Drift
TF-IDF cosine similarity
Total Words
5922
Avg Bloat
2.5×
Page Type ACRI Token Bloat Words Status
https://line.me/terms
LY Corporation Common Terms of Use
legal 87 1.5× 5725
https://line.me/help
Home | LINE Help Center
support 36 55.2× 197
https://line.me/api docs 0 0.0× 0
https://line.me/pricing pricing 0 0.0× 0
https://line.me/guides blog 0 0.0× 0
https://line.me/about about 0 0.0× 0
https://line.me/resources blog 0 0.0× 0
https://line.me/features product 0 0.0× 0
https://line.me/products product 0 0.0× 0
https://line.me/solutions product 0 0.0× 0
https://line.me/docs docs 0 0.0× 0
https://line.me/blog blog 0 0.0× 0
https://line.me/demo conversion 0 0.0× 0
https://line.me/case-studies social-proof 0 0.0× 0
https://line.me/get-started conversion 0 0.0× 0
https://line.me/faq support 0 0.0× 0
https://line.me/contact support 0 0.0× 0
https://line.me/integrations integrations 0 0.0× 0
https://line.me/support support 0 0.0× 0
https://line.me/trust trust 0 0.0× 0
Showing 20 of 23 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
/blog/ 1 0 0% 0.0× Low AI Readiness
/security/ 1 0 0% 0.0× Low AI Readiness
/about/ 1 0 0% 0.0× Low AI Readiness
/api/ 1 0 0% 0.0× Low AI Readiness
/get-started/ 1 0 0% 0.0× Low AI Readiness
/support/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/faq/ 1 0 0% 0.0× Low AI Readiness
/solutions/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/guides/ 1 0 0% 0.0× Low AI Readiness
/trust/ 1 0 0% 0.0× Low AI Readiness
/careers/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 23 pages
lycorp.co.jp ×2
privacy.lycorp.co.jp ×1
contact-cc.line.me ×1
🔄 Re-Crawl & Update 📡 Track this Domain

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🔌 API Access

Pull this data programmatically. All sub-page metrics are available via our public API.

curl https://seodiff.io/api/v1/deep10/domain/line.me

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🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
line.me (this site) 47 72 Gatsby 3.5× 0
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📊 Semantic Share of Voice

How often would an AI cite line.me 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

A 2 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.

36
Homepage ACRI
87
Inner Avg ACRI
-51
ACRI Delta
40%
Homepage Ghost
0%
Inner Avg Ghost
0
Drift Score [?]
Worst Inner Pages
87 0% legal https://line.me/terms
🛡️

E-E-A-T Trust Signals

D 30/100

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

3 DOMAINS

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

4
Total Links
3
Unique Domains
2.0
Avg/Page
75%
Diversity
lycorp.co.jp contact-cc.line.me privacy.lycorp.co.jp
🏘️ Outbound Neighborhood Trust Avg Trust: 40.5

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to line.me. 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": "Line",
  "url": "https://line.me",
  "logo": "https://line.me/static/img/apple-touch-icon-57x57.png",
  "sameAs": []
}
</script>
Add WebSite + SearchAction JSON-LD
High Impact ⏱ 5 min
Enables the Sitelinks Search Box in Google and allows AI to understand your site structure.
html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "Line",
  "url": "https://line.me",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://line.me/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
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 Line?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Line does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Line work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Line."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for line.me:

Current Score
72
Projected Score
85
Improvement
+13 pts
Add Organization schema +6 pts
Add WebSite schema +4 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

🧠 AI Citation Graph

How this domain is cited across the machine-readable web

40.5
AI-Trust
#38
Global Rank
97%
Percentile
418
Inbound AI Links
2
Outbound AI Links
57
Avg Inbound ACRI
11%
AI-Restricted Backlinks
Top AI Referrers
Domain ACRI AI-Trust Direction
suzuri.jp 58 1.6 ← cites you
kawashima-ya.jp 82 0.0 ← cites you
m-league.jp 81 0.0 ← cites you
hira2.jp 80 0.0 ← cites you
gold-japan.jp 79 0.0 ← cites you
ltn.com.tw 79 0.0 ← cites you
honto.jp 78 0.0 ← cites you
webpo.jp 78 0.0 ← cites you
icruise.com 78 0.0 ← cites you
bicklycarpet.co.jp 78 0.0 ← cites you
View Full AI-Trust Leaderboard →
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