What is rthk.hk's AI readiness score?

rthk.hk scores 73/100 on SEODiff's AI-Readiness Index, placing it in the Moderate range. The ACRI (AI-Crawler Reality Index) score is 51/100 (Grade D).

What tech stack does rthk.hk use?

rthk.hk uses Express as its primary framework with a 15% ghost ratio (Hybrid rendering).

Is rthk.hk visible to AI crawlers like ChatGPT?

GPTBot access: Allowed. ClaudeBot access: Allowed. rthk.hk has 1 structured data blocks and a token bloat ratio of 10.9x.

rthk.hk SEO & AI Readiness Score: 52/100 (D) — Full Technical Audit

📊

rthk.hk shows strong AI visibility with an ACRI of 73/100, outperforming 76% of indexed domains. Within the infrastructure vertical, this places rthk.hk above the industry average of 58 —, suggesting strong competitive positioning in AI search. A ghost ratio of 15% indicates a mixed rendering strategy where core content loads server-side but interactive sections rely on JavaScript. A 10.9× 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. Robots.txt grants unrestricted access to the key AI user-agents, which is the strongest starting position for AI visibility.

D — Global SEODiff Score

Comprehensive search visibility assessment

Below average — Traditional SEO (25) has the most room for improvement.

🎯 Top Fix: Monitor weekly to catch regressions early

🔬 Automated SEODiff Assessment · Snapshot: Feb 26, 2026 · 📋 API

📈 ACRI Trend 21 snapshots

Feb 22 Feb 26

🔔 Recent AI Indexing Activity

No recent changes detected by adaptive crawler.

Does your site score higher than rthk.hk?

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)25 × 0.25 = 6.2

🤖 AI Readiness / GEO (40% weight)69 × 0.40 = 27.6

⚡ Performance (20% weight)33 × 0.20 = 6.6

🏗️ Architecture & Trust (15% weight)77 × 0.15 = 11.5

Weighted sum = 6.2 + 27.6 + 6.6 + 11.5

Global SEODiff Score = 52 (D)

📊 ACRI Sub-Scores (AI Readiness Detail)

100

Bot Access

avg 92

Rendering

avg 93

Structure

avg 36

Schema

avg 9

Tech Stack

avg 63

🔀

Visibility Delta: Google vs AI

Google (Tranco)

Top 3%

Rank #25236

+22 pts

Gap

AI (ACRI)

Top 24%

Score 73/100

rthk.hk 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 rthk.hk ranks here

Tech stackExpress

Industryinfrastructure

RenderingHybrid

Schema coverage1 blocks

Token bloat10.9×

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…

Overview 🛡️ SEO 🤖 GEO ⚡ Perf 🏗️ Arch Remediation Export

See other Express sites → infrastructure industry → Full leaderboard → Domain A–Z →

🛡️

Traditional SEO

25/100 25 % of Global Score 🟡 Medium Confidence

📝 Title Tag

18 chars

Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

0 chars

Missing

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

✗ Exactly 1 <h1> tag — found 0
✓ Has <h2> headings — found 26
✗ <h2> not before <h1>

🔍 Indexability

✓ Canonical tag present → https://www.rthk.hk
✓ No noindex directive
✓ Meta viewport set
✓ HTML lang attribute → zh-hk
✓ Hreflang tags
✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

✓ og:title — 香港電台網站
✓ og:description — RTHK website
✓ 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

69/100 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 →

rthk.hk

Your ACRI Score

→

safely.co.jp

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 15%

0% — Safe 50% 100% — Risk

Status Server-Side Rendered (Safe)

Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 38/100 — Low

Structured Elements 61 elements (61 lists, 0 rows, 0 headers)

Total Words1414

Raw Density4.3%

💡Low structure score (38/100). Your content appears as a wall of text with few structured HTML elements. You have 61 list items, 0 table rows, 0 table headers. Convert features into <ul> lists and data into <table> elements to help AI models extract structured information.

🏷️ Schema Health Docs

Organization Schema ✅ Present

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

💡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

AI Extractability

Medium

Crawl Cost

None

Blocklist Risk

Extractability55/100 — AI models can partially extract answers from this page

Crawl CostMedium (60/100) — moderate for AI crawlers to process

Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

🗑️ 91%

Useful Content (31.9 KB)Bloat (317.4 KB)

Token Bloat Ratio10.9× — Normal

Multimodal Readiness

Visual Context83% Optimized for Vision

Image Alt Coverage77 / 93 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: 90.9% · SNR: 0.10 · Signal: 8170 / Noise: 81253 tokens

Run Full Entropy Audit →

🔬 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

A local LLM (mlx-community/gemma-3-4b-it-qat-4bit) analyzed the extracted content of rthk.hk 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

RTHK provides access to information to the public through its website and by responding to requests for information under the

Target Audience

General public, journalists, researchers, and anyone seeking information about the Hong Kong government and its services.

Pricing Model

Variable; charges apply for photocopying publications and dubbing program footage, based on usage and quantity.

🛡️ Compliance Standards

Code on Access to Information

🏆 Competitive Moat

Government-backed public broadcaster with a long history and established procedures for handling information requests, combined with a commitment to transparency and public service.

📊 Content Depth

6/10

🔄 Programmatic SEO Signals

Links to records by categoriesLinks to free information listsDisclosure logLinks to application forms

⚡ Key Pain Points

• Potential delays in responding to information requests

• Fees for accessing information (photocopying, dubbing)

• Need to clarify requests with the Information Officer

Model: mlx-community/gemma-3-4b-it-qat-4bit · Analyzed: 2026-03-01 · Data extracted from the site’s main content via strict JSON prompting.

🔧 Tech Stack

FrameworkExpress

AI-Readiness Score55/100

Server2.0.0

CDN—

HTTP Status200

Load Time1866 ms

Raw HTML Size349.3 KB

Visible Text Size31.9 KB

⚡

Performance & Speed

33/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1866 ms

Slow — bots may time out or deprioritise

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

📦 Page Weight

4546
DOM nodes

349 KB
HTML payload

Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

✓ Cache-Control header → no-store, no-cache, must-revalidate
✗ 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

77/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

534
internal links

7
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-hk
✓ 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 51/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

Pending Audit — score below 80 threshold

<a href="https://seodiff.io/radar/domains/rthk.hk" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=rthk.hk" alt="AI-Verified by SEODiff" width="280" height="52"></a>

[![AI-Verified by SEODiff](https://seodiff.io/api/v1/badge?domain=rthk.hk)](https://seodiff.io/radar/domains/rthk.hk)

💡 Paste in your site footer, GitHub README, or email signature. Badge updates automatically as your score changes.

� Deep Crawl Analysis 96 pages · Deep-10

Homepage ACRI

Single-page score

-15

Moderate hidden bloat

Δ delta

Site-Wide ACRI

Avg across 96 pages · Range 22–67

🔍

Hidden Bloat Detected

Homepage scores 51, but internal pages average only 36 — a -15-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion

Topical Drift

TF-IDF cosine similarity

Total Words

10063

Avg Bloat

117.2×

RAG Fractures [?]

⚠️

1 RAG-Chunking Fracture Detected

Poorly formatted tables or pricing grids on 1 page will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page	Type	ACRI	Token Bloat	Words	Status
https://www.rthk.hk/about/board_of_advisors/ 香港電台顧問委員會 The Board of Advisors of Radio Television Hong Kong \| 香港電台	about	67	14.3×	1374	✓
https://www.rthk.hk/access/index_e.htm rthk.hkAccess to Information	pricing	67	13.7×	574	💰 Pricing
https://www.rthk.hk/accessibility/index_e.htm RTHK OPEN DATA	other	57	5.2×	181	✓
https://www.rthk.hk/faq/index_e.html rthk.hkFAQ	support	54	18.3×	483	✓
https://www.rthk.hk/about/ethnic_minorities/measure_c.php?lang=bahasa 香港電台網站香港電台網站 - 其他言語內容	about	49	41.7×	221	✓
https://www.rthk.hk/about/ethnic_minorities/measure_e.php?lang=bahasa rthk.hkrthk.hk - Content in Other Languages	about	49	30.6×	230	✓
https://www.rthk.hk/archive 香港電台網站 : 重溫	other	46	75.3×	434	✓
https://rthk.hk/about rthk.hk 香港電台網站	pricing	39	38.9×	87	⚠️ RAG Fracture
https://rthk.hk/faq 香港電台網站常見問題	support	39	108.2×	101	✓
https://www.rthk.hk/faq/index.html 香港電台網站常見問題	support	39	108.2×	101	✓
https://www.rthk.hk/faq/ 香港電台網站常見問題	support	39	108.2×	101	✓
https://www.rthk.hk/access/ 香港電台網站公開資料	pricing	39	116.2×	85	💰 Pricing
https://www.rthk.hk/aboutus 香港電台網站 : 我們	pricing	39	67.4×	200	💰 Pricing
https://www.rthk.hk/access/index.htm 香港電台網站公開資料	pricing	39	116.2×	85	💰 Pricing
https://rthk.hk/pricing 香港電台網站	pricing	36	137.8×	76	✓
https://www.rthk.hk/about/ethnic_minorities/ 香港電台網站香港電台網站 - 其他言語內容	about	36	165.0×	54	✓
https://www.rthk.hk/about/ethnic_minorities/index.html 香港電台網站香港電台網站 - 其他言語內容	about	36	165.0×	54	✓
https://www.rthk.hk/about/ethnic_minorities/index_e.html rthk.hkrthk.hk - Content in Other Languages	pricing	36	97.4×	69	💰 Pricing
https://www.rthk.hk/features 香港電台網站 : WEB+	product	36	107.9×	118	✓
https://rthk.hk/products 香港電台網站	product	36	137.8×	76	✓

Showing 20 of 96 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
/chiculture/	60	36	0%	129.3×	High JS Bloat
/faq/	12	29	1%	95.2×	Bot Blocked
/about/	7	45	0%	79.0×	High JS Bloat
/access/	3	48	0%	82.0×	High JS Bloat
/features/	2	36	0%	109.7×	High JS Bloat
/accessibility/	2	44	0%	53.4×	High JS Bloat
/docs/	1	36	0%	137.8×	High JS Bloat
/blog/	1	36	0%	137.8×	High JS Bloat
/integrations/	1	36	0%	137.8×	High JS Bloat
/case-studies/	1	36	0%	137.8×	High JS Bloat
/contact/	1	36	0%	137.8×	High JS Bloat
/aboutus/	1	39	0%	67.4×	High JS Bloat
/apps/	1	36	0%	120.2×	High JS Bloat
/archive/	1	46	0%	75.3×	High JS Bloat
/pricing/	1	36	0%	137.8×	High JS Bloat

🔄 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/rthk.hk

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

🔗 Similar infrastructure Sites

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

Domain	ACRI	AI Score	Tech Stack	Token Bloat	Schema
rthk.hk (this site)	51	73	Express	10.9×	1	—
baloghekszer.hu	76	84	Express	6.4×	2	Compare →
dille-kamille.fr	76	83	Express	3.1×	2	Compare →
marinofamercato.com	76	82	Express	1.8×	2	Compare →
repozenfoo.com	76	89	WordPress	12.9×	2	Compare →
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📊 Semantic Share of Voice

How often would an AI cite rthk.hk 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 rthk.hk. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

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": "Rthk",
  "url": "https://rthk.hk",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://rthk.hk/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>

Reduce Token Bloat

Medium Impact ⏱ 1–2 hrs

Only 9% 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>

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

📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for rthk.hk:

Current Score

Projected Score

Improvement

+12 pts

Add WebSite schema +4 pts

Reduce token bloat +5 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).

📄 Generate llms.txt 📊 Export JSON Data 📸 Download Visual

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

Orphans & Hubs

Deep Audit sections

Content Quality

Thin/duplicate tracking

Open My Site report → Open Self-Diffing incidents → Open History timeline →

🕒 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

Why rthk.hk ranks here

Fastest improvements

JavaScript Rendering Check

Traditional SEO

📝 Title Tag

📋 Meta Description

🔤 Heading Hierarchy

🔍 Indexability

🌐 Social / OpenGraph

AI Readiness / GEO

Citation Alternatives

Hallucination Risk

Hallucination Risk Assessment

🤖 Bot Access Matrix

👻 Rendering (Ghost Ratio) Docs

📊 Structure & Information Density Docs

🏷️ Schema Health Docs

Schema Coverage Map

📐 AI Efficiency Metrics Docs

Token Bloat Research

Multimodal Readiness

TDM Rights

🔥 Structural Entropy Check Research

🔬 AI-Crawler Simulation

📐 Semantic Structure

🧩 Content Chunks

🤖 What Each Bot Sees

AI Answer Preview

The LLM Interpretation

🔧 Tech Stack

Performance & Speed

⏱️ Time to First Byte

📦 Page Weight

🗄️ Cache & CDN

🔬 Tracker Tax

Architecture & Trust

🗺️ Sitemap & Robots

🔗 Linking

🔒 Security & Trust

♿ Accessibility Signals

🏅 AI-Verified Trust Badge

� Deep Crawl Analysis 96 pages · Deep-10

🔌 API Access

🔗 Similar infrastructure Sites

📊 Semantic Share of Voice

Remediation Patches

Projected Impact

📧 Get your full report data

📋 Data Export

Is this your company?

🧭 Self-Diffing (Private Layer)

🕒 History

📚 Research & Documentation