xdf.cn 55 D
🛡️ SEO 16 🤖 GEO 75 ⚡ Perf 62 🏗️ Arch 57

xdf.cn — Global SEODiff Score 55/100

xdf.cn
📊

At 78/100, the ACRI for xdf.cn indicates strong fundamentals in AI extractability, surpassing the majority of indexed sites. Within the infrastructure vertical, this places xdf.cn above the industry average of 57 —, 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. The token bloat ratio sits at a lean 3.0×, meaning the ratio of code to visible content is efficient — crawlers spend their token budget on actual information. Zero schema blocks puts this site at a disadvantage in knowledge graph and AI-answer pipelines that rely on explicit structured data. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

55
D — Global SEODiff Score
Comprehensive search visibility assessment
Below average — Traditional SEO (16) has the most room for improvement.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 22 snapshots
Feb 22 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than xdf.cn?
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)16 × 0.25 = 4.0
🤖 AI Readiness / GEO (40% weight)75 × 0.40 = 30.0
⚡ Performance (20% weight)62 × 0.20 = 12.4
🏗️ Architecture & Trust (15% weight)57 × 0.15 = 8.5
Weighted sum = 4.0 + 30.0 + 12.4 + 8.5
Global SEODiff Score = 55 (D)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
89
Structure
avg 35
0
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 3%
Rank #26564
+10 pts
Gap
AI (ACRI)
Top 12%
Score 78/100

xdf.cn shows stronger AI visibility than traditional SEO ranking. Great AI foundation to build on. ACRI measures technical crawler readiness. Read the methodology →

Why xdf.cn ranks here

Tech stackCustom / Proprietary
RenderingSSR
Schema coverage0 blocks
Token bloat3.0×

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

16/100 25 % of Global Score 🟡 Medium Confidence

📝 Title Tag

50 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

455 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✗ Exactly 1 <h1> tag — found 0
  • ✓ Has <h2> headings — found 2
  • ✗ <h2> not before <h1>

🔍 Indexability

  • ✗ Canonical tag present
  • ✓ No noindex directive
  • ✗ Meta viewport set
  • ✗ HTML lang attribute
  • ✗ Hreflang tags
  • ✓ 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

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 →
xdf.cn
60
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 89/100 — Excellent
Structured Elements 49 elements (49 lists, 0 rows, 0 headers)
Total Words206
Raw Density23.8%

🏷️ 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

71
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability71/100 — 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

33%
🗑️ 67%
Useful Content (21.6 KB)Bloat (42.9 KB)
Token Bloat Ratio3.0× — Lean

Multimodal Readiness

Visual Context73% Optimized for Vision
Image Alt Coverage36 / 49 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

50 Entropy
Fair Token Bloat: Medium
Noise Ratio: 66.5% · SNR: 0.50 · Signal: 5528 / Noise: 10990 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 xdf.cn 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
This website provides resources and courses for preparing for university entrance exams, specifically the HSK and university English proficiency tests,
Target Audience
High school students preparing for university entrance exams (primarily HSK and university English), adult learners seeking to improve their English proficiency for university studies.
Pricing Model
Likely subscription-based or pay-per-course, with various tiers potentially offering different levels of access to materials and support.
🏆 Competitive Moat
Extensive library of exam preparation materials and practice tests, combined with a focus on targeted skill development and personalized learning.
📊 Content Depth
6/10
🔄 Programmatic SEO Signals
Template-generated pages for exam preparation resources (e.g., 2025年大学英语四级听力高分攻略)Multiple pages targeting specific exams (HSK, university English) and years.
⚡ Key Pain Points
• Lack of structured SEO schema
• Thin landing pages for individual resources
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

AI-Readiness Score50/100
Servernginx
CDN
HTTP Status200
Load Time1946 ms
Raw HTML Size64.5 KB
Visible Text Size21.6 KB

Performance & Speed

62/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1946 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

671
DOM nodes
64 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

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

57/100 15 % of Global Score 🟡 Medium Confidence

🗺️ Sitemap & Robots

  • ✗ Sitemap declared in robots.txt
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

166
internal links
10
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
  • ✗ 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 60/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for xdf.cn
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/xdf.cn" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=xdf.cn" 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 111 pages · Deep-10

Homepage ACRI
60
Single-page score
-9
Moderate hidden bloat
Δ delta
Site-Wide ACRI
52
Avg across 111 pages · Range 0–67
Total Words
34267
Avg Bloat
19.4×
Page Type ACRI Token Bloat Words Status
http://www.xdf.cn/981/list_18911_49.html
新东方网 / app资讯 / 万州大学考试-新东方网_第49页
other 67 11.4× 535
http://www.xdf.cn/981/list_18911_50.html
新东方网 / app资讯 / 万州大学考试-新东方网_第50页
other 67 11.6× 528
http://www.xdf.cn/981/list_18911_52.html
新东方网 / app资讯 / 万州大学考试-新东方网_第52页
other 57 18.4× 320
http://www.xdf.cn/981/list_18911_80.html
新东方网 / app资讯 / 万州大学考试-新东方网_第80页
other 57 17.4× 351
http://www.xdf.cn/981/list_18911_61.html
新东方网 / app资讯 / 万州大学考试-新东方网_第61页
other 57 19.4× 303
http://www.xdf.cn/981/list_18911_3.html
新东方网 / app资讯 / 万州大学考试-新东方网_第3页
other 57 18.3× 327
http://www.xdf.cn/981/list_18911_2.html
新东方网 / app资讯 / 万州大学考试-新东方网_第2页
other 57 19.7× 303
http://www.xdf.cn/981/list_18911_6.html
新东方网 / app资讯 / 万州大学考试-新东方网_第6页
other 57 17.0× 351
http://www.xdf.cn/981/list_18911_93.html
新东方网 / app资讯 / 万州大学考试-新东方网_第93页
other 57 16.5× 357
http://www.xdf.cn/981/index.html
新东方网 / app资讯 / 万州大学考试-新东方网
other 57 19.7× 302
http://www.xdf.cn/981/list_18911_32.html
新东方网 / app资讯 / 万州大学考试-新东方网_第32页
other 57 18.9× 314
http://www.xdf.cn/981/list_18911_71.html
新东方网 / app资讯 / 万州大学考试-新东方网_第71页
other 57 18.5× 303
http://www.xdf.cn/981/list_18911_33.html
新东方网 / app资讯 / 万州大学考试-新东方网_第33页
other 57 13.8× 424
http://www.xdf.cn/981/list_18911_5.html
新东方网 / app资讯 / 万州大学考试-新东方网_第5页
other 57 16.6× 362
http://www.xdf.cn/981/list_18911_42.html
新东方网 / app资讯 / 万州大学考试-新东方网_第42页
other 57 16.9× 352
http://www.xdf.cn/981/list_18911_84.html
新东方网 / app资讯 / 万州大学考试-新东方网_第84页
other 57 17.2× 332
http://www.xdf.cn/981/list_18911_82.html
新东方网 / app资讯 / 万州大学考试-新东方网_第82页
other 57 18.7× 303
http://www.xdf.cn/981/list_18911_87.html
新东方网 / app资讯 / 万州大学考试-新东方网_第87页
other 57 18.7× 305
http://www.xdf.cn/981/list_18911_7.html
新东方网 / app资讯 / 万州大学考试-新东方网_第7页
other 57 19.2× 312
http://www.xdf.cn/981/list_18911_1.html
新东方网 / app资讯 / 万州大学考试-新东方网
other 57 19.7× 302
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
/981/ 96 57 0% 17.3× High JS Bloat
/info/ 5 35 0% 86.0× High JS Bloat
/index.html/ 1 52 0% 64.2× High JS Bloat
/pricing/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/features/ 1 0 0% 0.0× Low AI Readiness
/blog/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/contact/ 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
🔄 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/xdf.cn

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
xdf.cn (this site) 60 78 Custom / Proprietary 3.0× 0
haoshunjia.com 85 86 Custom / Proprietary 1.3× 1 Compare →
lobbes.nl 85 86 Custom / Proprietary 1.5× 2 Compare →
gurapan.jp 85 80 Custom / Proprietary 1.5× 2 Compare →
qtponline.com 85 86 Custom / Proprietary 1.3× 2 Compare →
paradigit.nl 85 95 Custom / Proprietary 4.0× 15 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite xdf.cn 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 xdf.cn. 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": "Xdf",
  "url": "https://xdf.cn",
  "logo": "https://xdf.cn/logo.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": "Xdf",
  "url": "https://xdf.cn",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://xdf.cn/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 Xdf?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Xdf does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Xdf work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Xdf."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for xdf.cn:

Current Score
78
Projected Score
91
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
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
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