github.io 73 B
🛡️ SEO 47 🤖 GEO 81 ⚡ Perf 100 🏗️ Arch 56

github.io — Global SEODiff Score 73/100

github.io
📊

With a solid 69/100 ACRI, github.io is well-positioned for AI search — better than 64% of sites in the Radar. Within the developer vertical, this places github.io above the industry average of 58 —, suggesting strong competitive positioning in AI search. Its server-rendered architecture ensures AI crawlers receive complete HTML on first request, a key advantage for extractability. With a 2.5× bloat ratio, the page delivers its content without excessive boilerplate, giving AI systems a clean extraction path. Only 1 schema block is present — adding Organization, WebSite, and Breadcrumb schemas would significantly improve structured data coverage. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

73
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (47) is your bottleneck.
🎯 Top Fix: Fix title tag length → +3 pts
🔬 Automated SEODiff Assessment · Snapshot: Feb 26, 2026 · 📋 API
Does your site score higher than github.io?
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)47 × 0.25 = 11.8
🤖 AI Readiness / GEO (40% weight)81 × 0.40 = 32.4
⚡ Performance (20% weight)100 × 0.20 = 20.0
🏗️ Architecture & Trust (15% weight)56 × 0.15 = 8.4
Weighted sum = 11.8 + 32.4 + 20.0 + 8.4
Global SEODiff Score = 73 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
45
Structure
avg 36
2
Schema
avg 9
50
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.1%
Rank #117
+36 pts
Gap
AI (ACRI)
Top 36%
Score 69/100

github.io 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 github.io ranks here

Tech stackCustom / Proprietary
Industrydeveloper
RenderingSSR
Schema coverage1 blocks
Token bloat2.5×

Fastest improvements

  • You’re already in decent shape — the next moat is monitoring drift over time.
  • 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

47/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

139 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

124 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✗ Exactly 1 <h1> tag — found 3
  • ✓ Has <h2> headings — found 2
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — GitHub Pages
  • ✓ og:description — Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
  • ✗ og:image
  • ✓ 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

81/100 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 developer sector, hikkoshizamurai.jp (ACRI: 88) 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 →
github.io
58
Your ACRI Score
88
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. hikkoshizamurai.jp has schema coverage of 5 blocks and uses Custom / Proprietary. 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 5%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 45/100 — Fair
Structured Elements 43 elements (43 lists, 0 rows, 0 headers)
Total Words700
Raw Density6.1%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
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
💡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.

📐 AI Efficiency Metrics Docs

59
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability59/100 — AI models can partially extract answers from this page
Crawl CostLow (10/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

40%
🗑️ 60%
Useful Content (5.5 KB)Bloat (8.6 KB)
Token Bloat Ratio2.5× — Lean

Multimodal Readiness

Visual Context100% Optimized for Vision
Image Alt Coverage13 / 13 images have alt text

TDM Rights

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

🔥 Structural Entropy Check Research

62 Entropy
Fair Token Bloat: Medium
Noise Ratio: 60.8% · SNR: 0.65 · Signal: 1417 / Noise: 2194 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

A local LLM (mlx-community/Qwen2.5-7B-Instruct-4bit) analyzed the extracted content of github.io 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
Host websites directly from GitHub repositories; edit, push, and changes are live.
Target Audience
Developers, coders, open-source contributors
Pricing Model
Free for user and organization sites; paid for custom domains
🏆 Competitive Moat
Integrated with GitHub, free, and easy to use for developers.
📊 Content Depth
5/10
🔄 Programmatic SEO Signals
location pagesdirectory listingsAPI reference docscomparison pagesglossary/dictionary pagestemplate-generated category pages
⚡ Key Pain Points
• No meta descriptions
• Thin content on category pages
Model: mlx-community/Qwen2.5-7B-Instruct-4bit · Analyzed: 2026-02-27 · Data extracted from the site’s main content via strict JSON prompting.

🔧 Tech Stack

AI-Readiness Score50/100
ServerGitHub.com
CDN
HTTP Status200
Load Time5 ms
Raw HTML Size14.1 KB
Visible Text Size5.5 KB

Performance & Speed

100/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

5 ms
Excellent — server responds instantly

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

📦 Page Weight

254
DOM nodes
14 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=600
  • ✗ 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

56/100 15 % of Global Score 🟡 Medium Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

2
internal links
28
external links
Limited internal links — consider adding contextual cross-links

🔒 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 58/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for github.io
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/github.io" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=github.io" 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 16 pages · Deep-10

Homepage ACRI
58
Single-page score
+32
Subpages outperform homepage
Δ delta
Site-Wide ACRI
90
Avg across 16 pages · Range 90–90
Total Words
10960
Avg Bloat
4.2×
Page Type ACRI Token Bloat Words Status
https://github.io/api
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
docs 90 4.2× 685
https://github.io/pricing
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
pricing 90 4.2× 685
https://github.io/about
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
about 90 4.2× 685
https://github.io/help
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
support 90 4.2× 685
https://github.io/features
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
product 90 4.2× 685
https://github.io/solutions
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
product 90 4.2× 685
https://github.io/products
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
product 90 4.2× 685
https://github.io/blog
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
blog 90 4.2× 685
https://github.io/docs
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
docs 90 4.2× 685
https://github.io/case-studies
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
social-proof 90 4.2× 685
https://github.io/contact
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
support 90 4.2× 685
https://github.io/faq
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
support 90 4.2× 685
https://github.io/integrations
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
integrations 90 4.2× 685
https://github.io/careers
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
careers 90 4.2× 685
https://github.io/terms
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
legal 90 4.2× 685
https://github.io/privacy
GitHub Pages | Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.
legal 90 4.2× 685
📂
Health by Sub-Directory
Average ACRI and top issues aggregated by URL path prefix
Path Pages Avg ACRI Ghost % Bloat Top Issue
/blog/ 1 90 0% 4.2× Healthy
/docs/ 1 90 0% 4.2× Healthy
/solutions/ 1 90 0% 4.2× Healthy
/careers/ 1 90 0% 4.2× Healthy
/about/ 1 90 0% 4.2× Healthy
/case-studies/ 1 90 0% 4.2× Healthy
/faq/ 1 90 0% 4.2× Healthy
/privacy/ 1 90 0% 4.2× Healthy
/terms/ 1 90 0% 4.2× Healthy
/features/ 1 90 0% 4.2× Healthy
/api/ 1 90 0% 4.2× Healthy
/help/ 1 90 0% 4.2× Healthy
/pricing/ 1 90 0% 4.2× Healthy
/products/ 1 90 0% 4.2× Healthy
/contact/ 1 90 0% 4.2× Healthy
🔗
Outbound External Citations
0 unique external domains cited across 16 pages
github.blog ×16
help.github.com ×16
github.com ×16
shop.github.com ×16
jekyllrb.com ×16
githubstatus.com ×16
desktop.github.com ×16
docs.github.com ×16
🔄 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/github.io

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

🔗 Similar developer Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
github.io (this site) 58 69 Custom / Proprietary 2.5× 1
nieuwnieuw.com 82 86 Custom / Proprietary 2.5× 2 Compare →
earlyamerica.com 81 92 Custom / Proprietary 4.3× 2 Compare →
veiligheids-sloten.nl 82 86 Custom / Proprietary 2.8× 3 Compare →
ivymoda.com 83 87 Custom / Proprietary 2.1× 3 Compare →
narva.com.au 82 94 Custom / Proprietary 5.8× 7 Compare →
Compare All 5 Similar Sites →
🎭

Bait & Switch Delta

A 15 PAGES

Compares your homepage rendering quality with inner pages. A high drift score means AI crawlers see a polished homepage but degraded inner content — the "bait & switch" that erodes trust.

90
Homepage ACRI
90
Inner Avg ACRI
0
ACRI Delta
0%
Homepage Ghost
0%
Inner Avg Ghost
0
Drift Score [?]
Worst Inner Pages
90 0% about https://github.io/about
90 0% product https://github.io/products
90 0% product https://github.io/features
🛡️

E-E-A-T Trust Signals

C 40/100

Trust indicators extracted from surface pages. These signals help AI systems verify your site's Experience, Expertise, Authoritativeness, and Trustworthiness.

Physical Address
Phone Number
Email Contact
About Page
Contact Page
Privacy Policy
Terms of Service
Named Leadership
🔗

Citation Profile

10 DOMAINS

Outbound citation patterns across surface-crawled pages. Sites that cite diverse, authoritative sources signal higher E-E-A-T to AI systems.

150
Total Links
10
Unique Domains
10.0
Avg/Page
7%
Diversity
github.com training.github.com github.blog support.github.com help.github.com desktop.github.com docs.github.com jekyllrb.com githubstatus.com shop.github.com
🏘️ Outbound Neighborhood Trust Avg Trust: 47.4

AI trust scores for the domains github.io links to. Citing high-trust sources lifts your own credibility signal.

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to github.io. 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": "Github",
  "url": "https://github.io",
  "logo": "https://github.io/favicon.ico",
  "sameAs": []
}
</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 Github?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Github does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Github work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Github."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for github.io:

Current Score
69
Projected Score
78
Improvement
+9 pts
Add Organization schema +6 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