sydneyoperahouse.com 28 F
🛡️ SEO 0 🤖 GEO 77 ⚡ Perf 65 🏗️ Arch 86

sydneyoperahouse.com — Global SEODiff Score 28/100

sydneyoperahouse.com
📊

sydneyoperahouse.com struggles with AI visibility, recording a critical ACRI of 15/100 — AI crawlers face significant hurdles extracting its content. Within the infrastructure vertical, this places sydneyoperahouse.com below the industry average of 57 —, indicating room for competitive improvement. Content is delivered server-side, meaning bots and AI agents can parse the full page without executing JavaScript. With a 4.8× bloat ratio, the page delivers its content without excessive boilerplate, giving AI systems a clean extraction path. Minimal structured data (1 block) limits the site's ability to communicate entity relationships to AI systems. A full AI bot restriction means AI-powered search and answer engines cannot currently crawl and index this domain's content.

28
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 7, 2026 · 📋 API
📈 ACRI Trend 15 snapshots
Feb 22 Mar 7
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than sydneyoperahouse.com?
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)77 × 0.40 = 30.8
⚡ Performance (20% weight)65 × 0.20 = 13.0
🏗️ Architecture & Trust (15% weight)86 × 0.15 = 12.9
Weighted sum = 0.0 + 30.8 + 13.0 + 12.9
⚠️ Fatal multiplier: All major AI bots blocked → ×0.5
Global SEODiff Score = 28 (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
100
Rendering
avg 93
57
Structure
avg 36
42
Schema
avg 9
70
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 4%
Rank #39545
+63 pts
Gap
AI (ACRI)
Top 66%
Score 15/100

sydneyoperahouse.com 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 sydneyoperahouse.com ranks here

Tech stackDrupal
RenderingSSR
Schema coverage1 blocks
Token bloat4.8×

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

25 chars
Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

141 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 9
  • ✗ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.sydneyoperahouse.com/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → en
  • ✗ Hreflang tags
  • ✗ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — Sydney Opera House | Nothing Quite Like It
  • ✓ og:description — With over 40 shows a week there’s something for everyone at the Sydney Opera House. Events, tours, food and drink – find out what’s on.
  • ✓ 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

77/100 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, plodopitomnik-sad.ru (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 →
sydneyoperahouse.com
51
Your ACRI Score
90
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. plodopitomnik-sad.ru has schema coverage of 12 blocks and uses Express. 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)
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 0%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 57/100 — Fair
Structured Elements 95 elements (95 lists, 0 rows, 0 headers)
Total Words959
Raw Density9.9%

🏷️ 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

73
AI Extractability
Low
Crawl Cost
Critical
Blocklist Risk
Extractability73/100 — 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

20%
🗑️ 80%
Useful Content (28.1 KB)Bloat (106.6 KB)
Token Bloat Ratio4.8× — Lean

Multimodal Readiness

Visual Context59% Optimized for Vision
Image Alt Coverage29 / 49 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

5 Entropy
Poor Token Bloat: High
Noise Ratio: 79.1% · SNR: 0.26 · Signal: 7204 / Noise: 27287 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 sydneyoperahouse.com 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
Stream is Sydney Opera House’s online streaming platform offering a vast library of performing and digital arts content, including livestreams,
Target Audience
Performing arts enthusiasts, opera lovers, families, educators, and individuals seeking access to a wide range of cultural experiences.
Pricing Model
Free to sign up with a selection of free content; premium rentals available for purchase.
🔗 Integration Partners
VimeoChromecastApple TV
🏆 Competitive Moat
Exclusive content from the Sydney Opera House and a comprehensive library of performing arts, combined with a user-friendly mobile app and Chromecast support.
📊 Content Depth
8/10
🔄 Programmatic SEO Signals
‘Create Account’ buttonSign-up instructionsFAQ sectionDevice compatibility information
⚡ Key Pain Points
• Complex sign-in process with email address verification
• Troubleshooting guidance for various sign-in issues
• Limited language support (currently only English)
• Compatibility issues with certain TVs and browsers
Analyzed by SEODiff AI · 2026-03-02

🔧 Tech Stack

FrameworkDrupal
AI-Readiness Score70/100
Servernginx
CDN
HTTP Status200
Load Time505 ms
Raw HTML Size134.7 KB
Visible Text Size28.1 KB

Performance & Speed

65/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

505 ms
Acceptable — room for improvement

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

📦 Page Weight

946
DOM nodes
135 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=31536000, public
  • ✗ 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

86/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.sydneyoperahouse.com/sitemap.xml
  • ✗ Googlebot allowed
  • ✗ GPTBot allowed
  • ✗ ClaudeBot allowed

🔗 Linking

108
internal links
6
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 51/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for sydneyoperahouse.com
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/sydneyoperahouse.com" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=sydneyoperahouse.com" 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 82 pages · Deep-10

Homepage ACRI
51
Single-page score
+16
Subpages outperform homepage
Δ delta
Site-Wide ACRI
67
Avg across 82 pages · Range 31–85
Topical Cohesion
4%
Topical Drift
TF-IDF cosine similarity
Total Words
89267
Avg Bloat
55.2×
RAG Fractures [?]
43
⚠️
43 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 43 pages will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page Type ACRI Token Bloat Words Status
https://www.sydneyoperahouse.com/stream/about
About Stream | Sydney Opera House
about 85 8.6× 2789
https://www.sydneyoperahouse.com/support/our-supporters
Our supporters | Sydney Opera House
pricing 85 8.8× 1929 💰 Pricing
https://www.sydneyoperahouse.com/opera-australia/2024-season/handa-opera-on-sydney-harbour-west-side-story
Handa Opera on Sydney Harbour: West Side Story | Sydney Opera House
pricing 85 9.8× 2703 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/learn/sydney-opera-house-build/soh-build-conversation-series
SOH BUILD Conversation Series | Sydney Opera House
pricing 80 10.5× 2682 💰 Pricing
https://www.sydneyoperahouse.com/about-us/our-people/trust
Trust | Sydney Opera House
pricing 80 11.8× 1650 💰 Pricing
https://www.sydneyoperahouse.com/talks-ideas/evening-danielle-alvarez-and-libby-travers
An evening with Danielle Alvarez and Libby Travers | Sydney Opera House
pricing 77 15.6× 1325 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/learn/sydney-opera-house-build/sydney-opera-house-build-tertiary-built-environment-creative-lab
Tertiary Built Environment Creative Lab | Sydney Opera House
pricing 75 14.7× 1366 💰 Pricing
https://www.sydneyoperahouse.com/about-us/our-partners/partners
Partners | Sydney Opera House
integrations 75 12.0× 1270
https://www.sydneyoperahouse.com/comedy/lets-tidy
Let’s Tidy Up | Sydney Opera House
pricing 75 12.2× 1966 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/contemporary-music/lee-fields-surprise-chef
Lee Fields with special guests Surprise Chef | Sydney Opera House
pricing 75 14.0× 1612 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/contemporary-music/paul-weller
Paul Weller | Sydney Opera House
pricing 75 14.1× 1583 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/sydney-symphony-orchestra/2024-season/schumanns-second-symphony-simone-young
Schumann’s Second Symphony with Simone Young | Sydney Opera House
pricing 75 14.4× 1574 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/sydney-theatre-company/2024-season/rbg-many-one
RBG: Of Many, One | Sydney Opera House
pricing 75 12.1× 1964 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/contemporary-music/human-nature
Human Nature | Sydney Opera House
pricing 75 14.5× 1515 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/sydney-theatre-company/2024-season/sunday
Sunday | Sydney Opera House
pricing 75 13.9× 1736 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/sydney-symphony-orchestra/2024-season/beethovens-third-symphony
Beethoven’s Third Symphony | Sydney Opera House
pricing 75 13.9× 1636 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/contemporary-music/caroline-polachek
Caroline Polachek | Sydney Opera House
pricing 75 13.6× 1598 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/contemporary-music/graham-nash
Graham Nash | Sydney Opera House
pricing 75 13.5× 1588 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/sydney-theatre-company/2024-season/julia
Julia | Sydney Opera House
pricing 75 12.8× 1814 ⚠️ RAG Fracture
https://www.sydneyoperahouse.com/classical-music/havasi
Havasi | Sydney Opera House
pricing 75 13.6× 1630 ⚠️ RAG Fracture
Showing 20 of 82 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
/contemporary-music/ 13 73 0% 15.6× High JS Bloat
/support/ 11 67 0% 28.4× High JS Bloat
/about-us/ 8 63 0% 34.0× High JS Bloat
/sydney-symphony-orchestra/ 7 73 0% 14.7× High JS Bloat
/learn/ 7 64 0% 42.2× High JS Bloat
/testing/ 5 33 0% 517.6× High JS Bloat
/classical-music/ 4 73 0% 14.9× High JS Bloat
/sydney-theatre-company/ 4 74 0% 14.1× High JS Bloat
/bell-shakespeare/ 3 70 0% 20.5× High JS Bloat
/the-australian-ballet/ 2 72 0% 18.6× High JS Bloat
/talks-and-ideas/ 2 70 0% 18.7× High JS Bloat
/kids-families/ 2 72 0% 16.1× High JS Bloat
/talks-ideas/ 2 72 0% 17.9× High JS Bloat
/comedy/ 2 71 0% 18.1× High JS Bloat
/theatre/ 1 72 0% 18.5× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 82 pages
tripadvisor.com.au ×82
facebook.com ×82
weibo.com ×82
youtube.com ×82
instagram.com ×82
twitter.com ×82
sydneyoperahouse.api.collaboro.com ×58
transportnsw.info ×46
🔄 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/sydneyoperahouse.com

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
sydneyoperahouse.com (this site) 51 15 Drupal 4.8× 1
hodinky-koscom.cz 76 90 WordPress 5.0× 1 Compare →
zuriel.cz 76 80 Custom / Proprietary 5.6× 1 Compare →
synapse.net 76 85 WordPress 3.6× 1 Compare →
aliss.com.pa 76 79 Express 4.6× 2 Compare →
vietnamnet.vn 76 84 Custom / Proprietary 5.5× 2 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for sydneyoperahouse.com:

Current Score
15
Projected Score
38
Improvement
+23 pts
Allow GPTBot +8 pts
Allow ClaudeBot +5 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