nms.ac.uk 70 B
🛡️ SEO 58 🤖 GEO 73 ⚡ Perf 65 🏗️ Arch 87

nms.ac.uk — Global SEODiff Score 70/100

nms.ac.uk
📊

With a solid 78/100 ACRI, nms.ac.uk is well-positioned for AI search — better than 88% of sites in the Radar. Within the ecommerce vertical, this places nms.ac.uk 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. Heavy markup overhead (15.2× bloat) forces AI systems to wade through excess code before finding useful information. The site includes 2 schema blocks, providing adequate structured data for basic entity recognition. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

70
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (58) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
Does your site score higher than nms.ac.uk?
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)58 × 0.25 = 14.5
🤖 AI Readiness / GEO (40% weight)73 × 0.40 = 29.2
⚡ Performance (20% weight)65 × 0.20 = 13.0
🏗️ Architecture & Trust (15% weight)87 × 0.15 = 13.0
Weighted sum = 14.5 + 29.2 + 13.0 + 13.0
Global SEODiff Score = 70 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
97
Rendering
avg 93
63
Structure
avg 35
44
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 6%
Rank #57820
+7 pts
Gap
AI (ACRI)
Top 12%
Score 78/100

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

Why nms.ac.uk ranks here

Tech stackCustom / Proprietary
Industryecommerce
RenderingHybrid
Schema coverage2 blocks
Token bloat15.2×

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…
🛡️

Traditional SEO

58/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

32 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

56 chars
Too short

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 15
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.nms.ac.uk/
  • ✓ 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 — Home | National Museums Scotland
  • ✓ og:description — World-class collections, programmes, places and people.
  • ✓ 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

73/100 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 ecommerce sector, 24sevenmegastore.com (ACRI: 89) 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 →
nms.ac.uk
60
Your ACRI Score
89
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. 24sevenmegastore.com has schema coverage of 4 blocks and uses Django. 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 10%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 63/100 — Good
Structured Elements 108 elements (108 lists, 0 rows, 0 headers)
Total Words905
Raw Density11.9%

🏷️ Schema Health Docs

Organization Schema ✅ Present
Product / Service Schema ⚠️ Not Found
Total Schema Blocks2 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

61
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability61/100 — AI models can partially extract answers from this page
Crawl CostMedium (40/100) — moderate for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

6%
🗑️ 94%
Useful Content (9.8 KB)Bloat (138.7 KB)
Token Bloat Ratio15.2× — Heavy

Multimodal Readiness

Visual Context63% Optimized for Vision
Image Alt Coverage10 / 16 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: 93.4% · SNR: 0.07 · Signal: 2501 / Noise: 35500 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 nms.ac.uk 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
⚠ SEMANTIC VOID
Target Audience
⚠ SEMANTIC VOID
Pricing Model
⚠ SEMANTIC VOID
Analyzed by SEODiff AI · 2026-03-03

🔧 Tech Stack

AI-Readiness Score50/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time810 ms
Raw HTML Size148.4 KB
Visible Text Size9.8 KB

Performance & Speed

65/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

810 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1171
DOM nodes
148 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✓ CDN cache status → DYNAMIC
  • ✓ CDN detected → cloudflare

🔬 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

87/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.nms.ac.uk/sitemap.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

112
internal links
4
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 60/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for nms.ac.uk
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/nms.ac.uk" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=nms.ac.uk" 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 73 pages · Deep-10

Homepage ACRI
60
Single-page score
-11
Moderate hidden bloat
Δ delta
Site-Wide ACRI
50
Avg across 73 pages · Range 0–74
🔍
Hidden Bloat Detected

Homepage scores 60, but internal pages average only 50 — a -11-point gap. Blogs, docs, and legacy content are dragging down AI readability site-wide.

Topical Cohesion
19%
Topical Drift
TF-IDF cosine similarity
Total Words
30772
Avg Bloat
170.0×
RAG Fractures [?]
35
⚠️
35 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 35 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.nms.ac.uk/sitemap
Site Map | National Museums Scotland
pricing 74 18.6× 2148 💰 Pricing
https://www.nms.ac.uk/events/relaxed-morning
Relaxed Morning | National Museums Scotland
pricing 69 28.3× 1242 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/creative-workshop-block-printing
Creative Workshop: Block Printing | National Museums Scotland
pricing 66 57.5× 510 ⚠️ RAG Fracture
https://www.nms.ac.uk/exhibitions/maps-memories-from-the-second-world-war
Maps: Memories from the Second World War | National Museums Scotland
pricing 66 54.7× 523 ⚠️ RAG Fracture
https://www.nms.ac.uk//
Home | National Museums Scotland
pricing 66 49.9× 609 💰 Pricing
https://www.nms.ac.uk/events/annual-directors-lecture-buying-power
Annual Director’s Lecture: Buying Power | National Museums Scotland
pricing 66 41.9× 692 ⚠️ RAG Fracture
https://www.nms.ac.uk/past-exhibitions
Past Exhibitions | National Museums Scotland
pricing 66 37.1× 1020 💰 Pricing
https://www.nms.ac.uk/events/tractor-tots
Tractor Tots | National Museums Scotland
pricing 66 62.7× 530 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/creative-workshop-paper-creations
Creative Workshop: Paper Creations | National Museums Scotland
pricing 66 49.1× 629 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/collection-centre-tours
Collection Centre Tours | National Museums Scotland
pricing 66 69.6× 664 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/magic-carpet
Magic Carpet | National Museums Scotland
pricing 66 43.1× 768 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/gather-around-the-frame-a-celebration-of-hand-quilting
Gather Around the Frame: A Celebration of Hand Quilting | National Museums Scotland
pricing 66 42.2× 719 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/exploring-our-gaelic-collections-gallery-tour-and-talk
Exploring our Gaelic Collections: gallery tour and talk | National Museums Scotland
pricing 66 36.4× 821 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/relaxed-curiosity-club
Relaxed Curiosity Club | National Museums Scotland
pricing 66 51.4× 566 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/find-out-fridays
Find Out Fridays | National Museums Scotland
pricing 66 51.0× 647 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/relaxed-morning-national-museum-of-flight
Relaxed Morning: National Museum of Flight | National Museums Scotland
pricing 66 32.8× 1146 ⚠️ RAG Fracture
https://www.nms.ac.uk/events/conservation-hangar-talks
Conservation Hangar Talks | National Museums Scotland
pricing 66 53.1× 551 ⚠️ RAG Fracture
https://www.nms.ac.uk/exhibitions/giants
Giants | National Museums Scotland
pricing 66 34.0× 957 ⚠️ RAG Fracture
https://www.nms.ac.uk/past-exhibitions/masters-of-japanese-porcelain
Masters of Japanese Porcelain | National Museums Scotland
pricing 66 55.1× 512 💰 Pricing
https://www.nms.ac.uk/events/relaxed-afternoons-national-museum-of-rural-life
Relaxed Afternoons: National Museum of Rural Life | National Museums Scotland
pricing 66 35.5× 961 ⚠️ RAG Fracture
Showing 20 of 73 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
/events/ 33 60 1% 64.2× Bot Blocked
/past-exhibitions/ 17 58 1% 74.5× Bot Blocked
/exhibitions/ 4 61 1% 54.5× Bot Blocked
/search-our-collections/ 2 41 1% 1307.2× Bot Blocked
/whats-on/ 2 41 1% 911.2× Bot Blocked
/about/ 1 0 0% 0.0× Low AI Readiness
/features/ 1 0 0% 0.0× Low AI Readiness
/docs/ 1 0 0% 0.0× Low AI Readiness
/pricing/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/schools-sessions/ 1 46 1% 412.0× Bot Blocked
/sitemap/ 1 74 0% 18.6× High JS Bloat
/blog/ 1 0 0% 0.0× Low AI Readiness
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/discover-catalogue/ 1 36 1% 1908.6× Bot Blocked
🔗
Outbound External Citations
0 unique external domains cited across 73 pages
my.nms.ac.uk ×63
facebook.com ×63
media.nms.ac.uk ×63
youtube.com ×63
instagram.com ×63
shop.nms.ac.uk ×63
link.nms.ac.uk ×63
supercooldesign.co.uk ×63
🔄 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/nms.ac.uk

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

🔗 Similar ecommerce Sites

Domains with a similar tech stack, industry, and AI readiness profile to nms.ac.uk. Compare side-by-side.

Domain ACRI AI Score Tech Stack Token Bloat Schema
nms.ac.uk (this site) 60 78 Custom / Proprietary 15.2× 2
vet-concept.at 82 86 Custom / Proprietary 3.2× 2 Compare →
negoziodelvino.it 84 86 Custom / Proprietary 1.9× 2 Compare →
epic7db.com 84 86 Custom / Proprietary 1.8× 2 Compare →
bestcarton.com 85 87 Custom / Proprietary 3.4× 3 Compare →
tradeindata.com 83 91 Custom / Proprietary 2.0× 1 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite nms.ac.uk 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 nms.ac.uk. 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": "Ac",
  "url": "https://nms.ac.uk",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://nms.ac.uk/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 6% 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 Ac?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Ac does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Ac work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Ac."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for nms.ac.uk:

Current Score
78
Projected Score
90
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).

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 →