zen.co.uk 67 C
🛡️ SEO 58 🤖 GEO 78 ⚡ Perf 39 🏗️ Arch 93

zen.co.uk — Global SEODiff Score 67/100

zen.co.uk
📊

The AI-Readiness profile for zen.co.uk is strong: an ACRI of 73/100 places it ahead of 75% of domains in the index. In the infrastructure sector, zen.co.uk outperforms the average (57), suggesting strong competitive positioning in AI search. While the majority of content is server-rendered, the 15% ghost ratio suggests some content remains hidden from static crawlers. The 8.7× token bloat ratio falls within the normal range, though there is room to trim navigation, footer, and script overhead. Only 1 schema block is present — adding Organization, WebSite, and Breadcrumb schemas would significantly improve structured data coverage. The site maintains an open-door policy for AI crawlers — GPTBot, ClaudeBot, and other major agents are all allowed.

67
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (39) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 16, 2026 · 📋 API
📈 ACRI Trend 4 snapshots
Mar 5 Mar 16
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than zen.co.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)78 × 0.40 = 31.2
⚡ Performance (20% weight)39 × 0.20 = 7.8
🏗️ Architecture & Trust (15% weight)93 × 0.15 = 13.9
Weighted sum = 14.5 + 31.2 + 7.8 + 13.9
Global SEODiff Score = 67 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
94
Rendering
avg 93
37
Structure
avg 35
42
Schema
avg 9
55
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 2%
Rank #16313
+24 pts
Gap
AI (ACRI)
Top 25%
Score 73/100

zen.co.uk 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 zen.co.uk ranks here

Tech stackExpress
RenderingHybrid
Schema coverage1 blocks
Token bloat8.7×

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

60 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

157 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 4
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.zen.co.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 — Zen - the UK's best broadband
  • ✓ og:description — As voted by Which? and PC Pro customers.
  • ✓ og:image — preview
  • ✓ twitter:card — summary
📐 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

78/100 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 →
zen.co.uk
52
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 15%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 37/100 — Low
Structured Elements 72 elements (36 lists, 8 rows, 28 headers)
Total Words1743
Raw Density4.1%
💡Low structure score (37/100). Your content appears as a wall of text with few structured HTML elements. You have 36 list items, 8 table rows, 28 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

57
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability57/100 — AI models can partially extract answers from this page
Crawl CostMedium (50/100) — moderate for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

11%
🗑️ 89%
Useful Content (28.9 KB)Bloat (222.3 KB)
Token Bloat Ratio8.7× — Normal

Multimodal Readiness

Visual Context58% Optimized for Vision
Image Alt Coverage47 / 81 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: 88.5% · SNR: 0.13 · Signal: 7396 / Noise: 56899 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 zen.co.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
Zen provides broadband and Wi-Fi solutions for homes and businesses, focusing on expanding fibre-optic connectivity and offering a range of
Target Audience
Home users, small business owners, IT professionals, and individuals seeking improved broadband and Wi-Fi performance.
Pricing Model
Not explicitly stated, but likely subscription-based with tiered plans based on speed and data allowances.
🔗 Integration Partners
eeroCisco
🏆 Competitive Moat
Expanding fibre-optic network infrastructure and a focus on customer experience specialization, providing a competitive advantage in broadband services.
📊 Content Depth
6/10
🔄 Programmatic SEO Signals
Blog posts on broadband technologyArticles on Wi-Fi solutionsInformation on fibre-optic technologyReferral program
⚡ Key Pain Points
• Lack of sufficient broadband speed for modern internet usage
• Need for improved Wi-Fi connectivity for businesses
• Complex IT infrastructure challenges for businesses
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

FrameworkExpress
AI-Readiness Score55/100
ServerA Web Server
CDN
HTTP Status200
Load Time1012 ms
Raw HTML Size251.2 KB
Visible Text Size28.9 KB

Performance & Speed

39/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1012 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1539
DOM nodes
251 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → no-cache
  • ✗ 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

93/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

85
internal links
12
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 52/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for zen.co.uk
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/zen.co.uk" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=zen.co.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 133 pages · Deep-10

Homepage ACRI
52
Single-page score
-7
Moderate hidden bloat
Δ delta
Site-Wide ACRI
46
Avg across 133 pages · Range 0–64
Topical Cohesion
18%
Topical Drift
TF-IDF cosine similarity
Total Words
89579
Avg Bloat
63.7×
Page Type ACRI Token Bloat Words Status
https://www.zen.co.uk/blog/posts/zen-blog/2020/07/23/the-heath-and-wellbeing-evolution---from-nice-to-have-to-business-critical
The health and wellbeing evolution
pricing 64 18.8× 1956 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/07/03/june-technology-blogspot-small-business
June technology blogspot: small business
pricing 59 28.4× 1263 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/08/23/august-technology-blogspot-small-business
August technology blogspot: small business
pricing 59 25.7× 1408 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/08/23/august-technology-blogspot
August technology blogspot
pricing 59 26.3× 1369 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/10/22/october-technology-blogspot-small-business
October technology blogspot: small business
pricing 59 25.6× 1413 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/10/22/october-technology-blogspot
October technology blogspot
pricing 59 28.7× 1250 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-news/2019/02/18/hi-from-our-non-execs
"Hi" from our non-execs
pricing 59 24.7× 1447 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2019/04/18/the-minimum-internet-speeds-for-streaming-video-in-2019
The minimum internet speeds for streaming video in 2019
pricing 59 22.6× 1620 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2019/05/24/what-is-ultrafast-broadband-the-complete-beginners-guide
What is Ultrafast broadband? The complete beginner's guide
pricing 59 23.3× 1583 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2019/08/29/which-email-provider-do-you-use---and-is-it-the-right-one
Which email provider do you use - and is it the right one?
pricing 59 26.5× 1358 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2022/02/03/aws-well-architected-achieving-operational-excellence
AWS Well-Architected: achieving operational excellence
pricing 59 26.9× 1337 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2021/05/14/jargon-busting-broadband-whats-the-difference-and-whats-best-for-me
Jargon busting: Broadband... what's the difference and what's best for me?
pricing 59 25.3× 1429 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2021/05/14/seven-tips-to-improve-your-wifi
Seven tips to improve your WiFi
pricing 59 22.5× 1616 💰 Pricing
https://www.zen.co.uk/blog/posts/zen-blog/2018/05/31/may-technology-blogspot-small-business
May technology blogspot: small business
pricing 59 27.1× 1420 💰 Pricing
https://www.zen.co.uk/blog/posts
Blog
pricing 56 56.2× 675 💰 Pricing
https://www.zen.co.uk/blog
Blog
pricing 56 56.2× 675 💰 Pricing
https://zen.co.uk/blog
Blog
pricing 56 56.2× 675 💰 Pricing
https://www.zen.co.uk/partners/service-providers/why-zen
Service Providers - Why Zen| Zen
pricing 56 31.7× 1104 💰 Pricing
https://www.zen.co.uk/partners/service-providers/products-services
Products & Services |Service Providers | Zen
pricing 56 50.0× 688 💰 Pricing
https://www.zen.co.uk/partners
Partner With Zen
pricing 56 35.9× 1097 💰 Pricing
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
/blog/ 106 48 0% 70.9× High JS Bloat
/partners/ 11 51 0% 33.3× High JS Bloat
/business/ 7 52 1% 85.0× Bot Blocked
/contact/ 1 0 0% 0.0× Low AI Readiness
/integrations/ 1 0 0% 0.0× Low AI Readiness
/products/ 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
/pricing/ 1 0 0% 0.0× Low AI Readiness
/about/ 1 0 0% 0.0× Low AI Readiness
/features/ 1 0 0% 0.0× Low AI Readiness
/faq/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 133 pages
twitter.com ×115
instagram.com ×115
facebook.com ×115
youtube.com ×115
story.zen.co.uk ×115
business.zen.co.uk ×108
webmail.zen.co.uk ×108
portal.zenbusiness.co.uk ×105
🔄 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/zen.co.uk

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

🔗 Similar infrastructure Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
zen.co.uk (this site) 52 73 Express 8.7× 1
aliss.do 77 80 Express 4.6× 2 Compare →
in.hach.com 77 80 Express 1.6× 0 Compare →
hultsfred.se 77 90 WordPress 9.2× 2 Compare →
eyely.com 77 89 Shopify 7.8× 2 Compare →
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📊 Semantic Share of Voice

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

Projected Impact

ROI EST.

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

Current Score
73
Projected Score
83
Improvement
+10 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).

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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?
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