offcn.cc 26 F
🛡️ SEO 0 🤖 GEO 79 ⚡ Perf 53 🏗️ Arch 71

offcn.cc — Global SEODiff Score 26/100

offcn.cc
📊

offcn.cc struggles with AI visibility, recording a critical ACRI of 15/100 — AI crawlers face significant hurdles extracting its content. Its server-rendered architecture ensures AI crawlers receive complete HTML on first request, a key advantage for extractability. A 5.1× bloat ratio is typical for sites in this tech tier — not wasteful, but streamlining could further boost extractability. Minimal structured data (1 block) limits the site's ability to communicate entity relationships to AI systems. Comprehensive AI crawler restrictions limit this domain's presence in the growing AI search ecosystem.

26
F — Global SEODiff Score
Comprehensive search visibility assessment
Significant improvement opportunities. Start with Traditional SEO (0).
🎯 Top Fix: Allow GPTBot + ClaudeBot in robots.txt → lift the score cap
🔬 Automated SEODiff Assessment · Snapshot: Mar 15, 2026 · 📋 API
📈 ACRI Trend 6 snapshots
Feb 23 Mar 15
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than offcn.cc?
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)0 × 0.25 = 0.0
🤖 AI Readiness / GEO (40% weight)79 × 0.40 = 31.6
⚡ Performance (20% weight)53 × 0.20 = 10.6
🏗️ Architecture & Trust (15% weight)71 × 0.15 = 10.7
Weighted sum = 0.0 + 31.6 + 10.6 + 10.7
⚠️ Fatal multiplier: All major AI bots blocked → ×0.5
Global SEODiff Score = 26 (F)
🚫
Gatekeeper Rule: Score cannot exceed 15. Both GPTBot and ClaudeBot are blocked in robots.txt. No major AI assistant can cite this site. Allow at least one major AI crawler to lift the cap. See Bot Access →
📊 ACRI Sub-Scores (AI Readiness Detail)
0
Bot Access
avg 92
99
Rendering
avg 93
100
Structure
avg 35
2
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 50%+
Rank #626324
Aligned
Gap
AI (ACRI)
Top 67%
Score 15/100

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

Why offcn.cc ranks here

Tech stackCustom / Proprietary
Industry
RenderingSSR
Schema coverage1 blocks
Token bloat5.1×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • Allow ClaudeBot (many assistants rely on it) — blocking it often correlates with “AI invisibility.”
  • 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

0/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

39 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

323 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✗ Exactly 1 <h1> tag — found 0
  • ✓ Has <h2> headings — found 12
  • ✗ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.offcn.cc
  • ✓ No noindex directive
  • ✗ Meta viewport set
  • ✓ HTML lang attribute → zh-CN
  • ✅ Hreflang tags
  • ✗ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — 中考网 - 中考升学考试必备网
  • ✓ og:description — 中考网为您提供全国各地中考招生信息、成绩查询、中考政策、成绩查询、中考升学、考试时间、中考必备、考试科目、中考真题、中考分数、中考转学、中考落榜、中考冲刺、各地中考等资讯服务,助力学生顺利升学,获取中考相关资讯和支持。
  • ✗ 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

79/100 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.

🚨

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)
Blocked
CCBot (Common Crawl)
Blocked
Google-Extended
Blocked
Googlebot
Blocked
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.
💡ClaudeBot is blocked. To be cited by Claude, allow ClaudeBot in robots.txt.

👻 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 307 elements (307 lists, 0 rows, 0 headers)
Total Words355
Raw Density86.5%

🏷️ Schema Health Docs

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

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

75
AI Extractability
Low
Crawl Cost
Critical
Blocklist Risk
Extractability75/100 — AI models can easily extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskCritical — 5 of 5 AI crawlers blocked

Token Bloat Research

19%
🗑️ 81%
Useful Content (14.2 KB)Bloat (58.8 KB)
Token Bloat Ratio5.1× — Normal

Multimodal Readiness

Visual Context50% Optimized for Vision
Image Alt Coverage1 / 2 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 80.5% · SNR: 0.24 · Signal: 3639 / Noise: 15054 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 offcn.cc 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 comprehensive resources for Chinese students preparing for the Gaokao (National College Entrance Examination), covering exam policies, study
Target Audience
Middle school students (primarily 14-16 years old), parents of middle school students, and educators in China. Specifically targeting students preparing for the Gaokao and those considering transferring schools or pursuing higher education options.
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Extensive and localized content focused solely on the Chinese education system and Gaokao, combined with a strong community and reputation within China.
📊 Content Depth
9/10
🔄 Programmatic SEO Signals
Template comparison pages (e.g., for different provinces' Gaokao policies)Integration directory pages (linking to external resources and services)Keyword-rich content targeting specific Gaokao topics and exam dates
⚡ Key Pain Points
• Lack of structured FAQ schema
• Thin landing pages for features (primarily focused on individual exam policies)
• Potential for information overload due to the sheer volume of content
Analyzed by SEODiff AI · 2026-03-29

🔧 Tech Stack

AI-Readiness Score50/100
Servernginx
CDN
HTTP Status200
Load Time1159 ms
Raw HTML Size73.0 KB
Visible Text Size14.2 KB

Performance & Speed

53/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1159 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

849
DOM nodes
73 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✗ 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

71/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

292
internal links
37
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 → zh-CN
  • ✗ 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 54/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for offcn.cc
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/offcn.cc" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=offcn.cc" 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
54
Single-page score
+6
Consistent readability
Δ delta
Site-Wide ACRI
60
Avg across 10 pages · Range 60–60
Total Words
3440
Avg Bloat
43.7×
Page Type ACRI Token Bloat Words Status
https://offcn.cc/pricing
中考网 - 中考升学考试必备网
pricing 60 43.7× 344
https://offcn.cc/about
中考网 - 中考升学考试必备网
about 60 43.7× 344
https://offcn.cc/products
中考网 - 中考升学考试必备网
product 60 43.7× 344
https://offcn.cc/features
中考网 - 中考升学考试必备网
product 60 43.7× 344
https://offcn.cc/docs
中考网 - 中考升学考试必备网
docs 60 43.7× 344
https://offcn.cc/blog
中考网 - 中考升学考试必备网
blog 60 43.7× 344
https://offcn.cc/case-studies
中考网 - 中考升学考试必备网
social-proof 60 43.7× 344
https://offcn.cc/faq
中考网 - 中考升学考试必备网
support 60 43.7× 344
https://offcn.cc/contact
中考网 - 中考升学考试必备网
support 60 43.7× 344
https://offcn.cc/integrations
中考网 - 中考升学考试必备网
integrations 60 43.7× 344
📂
Health by Sub-Directory
Average ACRI and top issues aggregated by URL path prefix
Path Pages Avg ACRI Ghost % Bloat Top Issue
/integrations/ 1 60 0% 43.7× High JS Bloat
/pricing/ 1 60 0% 43.7× High JS Bloat
/about/ 1 60 0% 43.7× High JS Bloat
/features/ 1 60 0% 43.7× High JS Bloat
/case-studies/ 1 60 0% 43.7× High JS Bloat
/docs/ 1 60 0% 43.7× High JS Bloat
/products/ 1 60 0% 43.7× High JS Bloat
/blog/ 1 60 0% 43.7× High JS Bloat
/contact/ 1 60 0% 43.7× High JS Bloat
/faq/ 1 60 0% 43.7× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 10 pages
ahrsks.net ×10
gdxledu.com ×10
educn.co ×10
whyc.cc ×10
gdrsks.org ×10
hnrsks.co ×10
sxrsks.co ×10
kaoyan8.cc ×10
🔄 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/offcn.cc

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

🔗 Similar Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
offcn.cc (this site) 54 15 Custom / Proprietary 5.1× 1
skisprungschanzen.com 64 74 Custom / Proprietary 5.2× 0 Compare →
jiancai.huangye88.com 64 75 Custom / Proprietary 5.5× 0 Compare →
investor.siriusxm.com 64 79 Custom / Proprietary 2.4× 1 Compare →
utvolshop.com 64 74 Custom / Proprietary 6.7× 0 Compare →
premium.pl 64 78 Custom / Proprietary 2.9× 0 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite offcn.cc 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 offcn.cc. 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": "Offcn",
  "url": "https://offcn.cc",
  "logo": "https://www.offcn.cc/assets/img/favicon.ico",
  "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": "Offcn",
  "url": "https://offcn.cc",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://offcn.cc/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
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: /
Allow ClaudeBot in robots.txt
Medium Impact ⏱ 2 min
ClaudeBot is restricted — Claude may not be able to cite your content. Many AI assistants rely on it.
text
User-agent: ClaudeBot
Allow: /

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for offcn.cc:

Current Score
15
Projected Score
44
Improvement
+29 pts
Allow GPTBot +8 pts
Allow ClaudeBot +5 pts
Add Organization schema +6 pts
Add WebSite schema +4 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).

Is this your company?

Monitor your AI visibility score weekly and get alerted when changes happen.

Start Free →

🧭 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.
Free Deep Audit → GSC Error Guide →