harvard.edu 69 C
🛡️ SEO 50 🤖 GEO 80 ⚡ Perf 59 🏗️ Arch 82

harvard.edu — Global SEODiff Score 69/100

harvard.edu
📊

At 73/100, the ACRI for harvard.edu indicates strong fundamentals in AI extractability, surpassing the majority of indexed sites. In the education sector, harvard.edu outperforms the average (58), suggesting strong competitive positioning in AI search. The low ghost ratio (0%) confirms that what crawlers see matches what users see — a hallmark of strong SSR implementation. The 7.1× token bloat ratio falls within the normal range, though there is room to trim navigation, footer, and script overhead. 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.

69
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (50) is your bottleneck.
🎯 Top Fix: Add HSTS header → +2 pts
🔬 Automated SEODiff Assessment · Snapshot: Feb 28, 2026 · 📋 API
Does your site score higher than harvard.edu?
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)50 × 0.25 = 12.5
🤖 AI Readiness / GEO (40% weight)80 × 0.40 = 32.0
⚡ Performance (20% weight)59 × 0.20 = 11.8
🏗️ Architecture & Trust (15% weight)82 × 0.15 = 12.3
Weighted sum = 12.5 + 32.0 + 11.8 + 12.3
Global SEODiff Score = 69 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
46
Structure
avg 36
2
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.1%
Rank #309
+25 pts
Gap
AI (ACRI)
Top 25%
Score 73/100

harvard.edu 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 harvard.edu ranks here

Tech stackWordPress
Industryeducation
RenderingSSR
Schema coverage1 blocks
Token bloat7.1×

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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

18 chars
Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

138 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 10
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — Harvard University
  • ✓ og:description — Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.
  • ✓ 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

80/100 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 education sector, educationdirectory.com.au (ACRI: 86) 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 →
harvard.edu
56
Your ACRI Score
86
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. educationdirectory.com.au has schema coverage of 4 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 0%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 46/100 — Fair
Structured Elements 127 elements (127 lists, 0 rows, 0 headers)
Total Words1964
Raw Density6.5%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks1 block(s) — Basic (low value for AI)

Schema Coverage Map

0/7 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.
💡WebSite schema missing. Add WebSite + SearchAction so Google can generate a Sitelinks Search Box for your brand in AI results.

📐 AI Efficiency Metrics Docs

53
AI Extractability
Low
Crawl Cost
None
Blocklist Risk
Extractability53/100 — AI models can partially extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

14%
🗑️ 86%
Useful Content (21.6 KB)Bloat (132.7 KB)
Token Bloat Ratio7.1× — Normal

Multimodal Readiness

Visual Context95% Optimized for Vision
Image Alt Coverage20 / 21 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: 86.0% · SNR: 0.16 · Signal: 5536 / Noise: 33968 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 harvard.edu 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
🏆 Competitive Moat
SEMANTIC VOID
📊 Content Depth
1/10
🔄 Programmatic SEO Signals
location pages
⚡ Key Pain Points
• No target audience defined
• No core offering defined
• No pricing model mentioned
• No integration partners listed
• No compliance standards mentioned
• No competitive moat described
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

FrameworkWordPress
AI-Readiness Score85/100
Servernginx
CDN
HTTP Status200
Load Time687 ms
Raw HTML Size154.3 KB
Visible Text Size21.6 KB

Performance & Speed

59/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

687 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1185
DOM nodes
154 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=300, 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

82/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.harvard.edu/sitemap_index.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

158
internal links
13
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-US
  • ✓ 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 56/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for harvard.edu
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/harvard.edu" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=harvard.edu" 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 338 pages · Deep-10

Homepage ACRI
56
Single-page score
+1
Consistent readability
Δ delta
Site-Wide ACRI
57
Avg across 338 pages · Range 34–90
Topical Cohesion
9%
Topical Drift
TF-IDF cosine similarity
Total Words
221624
Avg Bloat
135.6×
Page Type ACRI Token Bloat Words Status
https://www.harvard.edu/in-focus/poetry/
Poetry - Harvard University
other 90 4.1× 9794
https://www.harvard.edu/in-focus/unequal/underserved-potential/
Unequal - Harvard University
pricing 85 5.1× 13327 💰 Pricing
https://www.harvard.edu/in-focus/gratitude/
Gratitude - Harvard University
other 85 8.5× 3572
https://www.harvard.edu/in-focus/native-american-heritage-month/
Native American Heritage Month - Harvard University
other 85 9.7× 3751
https://www.harvard.edu/in-focus/unequal/
Unequal - Harvard University
pricing 85 5.1× 13327 💰 Pricing
https://www.harvard.edu/in-focus/black-history-month/
Black History Month - Harvard University
other 85 8.9× 4230
https://www.harvard.edu/about/history/nobel-laureates/economic-sciences/
Laureates in Economic Science - Harvard University
about 75 18.0× 1550
https://www.harvard.edu/about/history/nobel-laureates/medicine/
Nobel Laureates in Medicine - Harvard University
about 75 16.7× 1705
https://www.harvard.edu/about/history/timeline/
History timeline - Harvard University
pricing 75 12.2× 3220 💰 Pricing
https://www.harvard.edu/task-force-on-antisemitism/progress-on-actions/
Progress on Actions - Harvard University
other 75 11.3× 2385
https://www.harvard.edu/task-force-on-antisemitism/academic-life/
Academic life  - Harvard University
other 75 13.9× 1882
https://www.harvard.edu/task-force-on-antisemitism/administrative-infrastructure-policies-procedures-and-training/
Administrative infrastructure, policies, procedures, and training - Harvard University
other 75 12.5× 2136
https://www.harvard.edu/task-force-on-antisemitism/admissions-and-early-student-experiences/
Admissions and early student experiences - Harvard University
other 75 14.0× 1861
https://www.harvard.edu/task-force-on-anti-muslim-and-anti-arab-bias/admissions-and-early-student-experiences/
Admissions and early student experiences - Harvard University
other 75 17.0× 1683
https://www.harvard.edu/task-force-on-anti-muslim-and-anti-arab-bias/academic-life/
Academic life  - Harvard University
other 75 19.1× 1481
https://www.harvard.edu/task-force-on-anti-muslim-and-anti-arab-bias/administrative-infrastructure-policies-procedures-and-training/
Administrative infrastructure, policies, procedures and training - Harvard University
other 75 15.2× 1930
https://www.harvard.edu/task-force-on-anti-muslim-and-anti-arab-bias/open-inquiry-and-constructive-dialogue/
Open inquiry and constructive dialogue - Harvard University
other 75 15.0× 1958
https://www.harvard.edu/task-force-on-antisemitism/open-inquiry-and-constructive-dialogue/
Open inquiry and constructive dialogue - Harvard University
other 75 15.8× 1643
https://www.harvard.edu/task-force-on-antisemitism/religious-community-and-campus-life/
Religious, community, and campus life  - Harvard University
other 75 17.5× 1458
https://www.harvard.edu/task-force-on-anti-muslim-and-anti-arab-bias/religious-community-and-campus-life/
Religious, community, and campus life  - Harvard University
other 75 17.6× 1626
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
/programs/ 161 49 0% 209.3× High JS Bloat
/in-focus/ 109 67 0% 54.2× High JS Bloat
/about/ 21 62 0% 64.7× High JS Bloat
/task-force-on-anti-muslim-and-anti-arab-bias/ 7 75 0% 16.5× High JS Bloat
/task-force-on-antisemitism/ 7 75 0% 15.0× High JS Bloat
/campus/ 5 50 0% 162.2× High JS Bloat
/visit/ 4 62 0% 50.9× High JS Bloat
/academics/ 3 64 0% 61.3× High JS Bloat
/denamingproposals/ 3 60 0% 52.1× High JS Bloat
/2024/ 2 62 0% 43.7× High JS Bloat
/support-resources/ 1 67 0% 37.1× High JS Bloat
/emergency/ 1 47 0% 122.8× High JS Bloat
/contact/ 1 47 0% 287.1× High JS Bloat
/security-issue/ 1 47 0% 172.5× High JS Bloat
/degree-verification/ 1 47 0% 200.8× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 338 pages
hbs.edu ×338
hsdm.harvard.edu ×338
harvardforest.fas.harvard.edu ×338
commencement.harvard.edu ×338
harvardartmuseums.org ×338
hms.harvard.edu ×338
pages01.net ×338
mgmh.fas.harvard.edu ×338
🔄 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/harvard.edu

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

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🎭

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.

57
Homepage ACRI
57
Inner Avg ACRI
0
ACRI Delta
20%
Homepage Ghost
20%
Inner Avg Ghost
6
Drift Score [?]
Worst Inner Pages
47 20% support https://harvard.edu/contact
67 20% about https://www.harvard.edu/about/history/nobel-laureates/chemistry/
57 20% about https://www.harvard.edu/about/leadership-and-governance/harvard-corporation/
🛡️

E-E-A-T Trust Signals

C 50/100

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
Named leadership: william, melissa, william
🔗

Citation Profile

85 DOMAINS

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

750
Total Links
85
Unique Domains
50.0
Avg/Page
11%
Diversity
hls.harvard.edu news.harvard.edu hmnh.harvard.edu arboretum.harvard.edu doaks.org library.hds.harvard.edu ccva.fas.harvard.edu ccl.harvard.edu hds.harvard.edu dce.harvard.edu
🏘️ Outbound Neighborhood Trust Avg Trust: 0.0

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to harvard.edu. 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": "Harvard",
  "url": "https://harvard.edu",
  "logo": "https://www.harvard.edu/wp-content/uploads/2020/10/cropped-logo-branding-compressed.png?w=32",
  "sameAs": []
}
</script>
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": "Harvard",
  "url": "https://harvard.edu",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://harvard.edu/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 Harvard?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Harvard does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Harvard work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Harvard."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for harvard.edu:

Current Score
73
Projected Score
89
Improvement
+16 pts
Add Organization schema +6 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