salk.edu 73 B
🛡️ SEO 75 🤖 GEO 73 ⚡ Perf 68 🏗️ Arch 78

salk.edu — Global SEODiff Score 73/100

salk.edu
📊

salk.edu shows strong AI visibility with an ACRI of 79/100, outperforming 91% of indexed domains. Within the education vertical, this places salk.edu 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. Token bloat registers at 10.4× — acceptable, but reducing inline scripts and redundant markup could yield measurable gains. 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.

73
B — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (68) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Mar 1, 2026 · 📋 API
📈 ACRI Trend 18 snapshots
Feb 22 Mar 1
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
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Run the same 40-signal audit on your own domain — free, instant results.
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🧮 Score Transparency — How is this calculated?
🛡️ Traditional SEO (25% weight)75 × 0.25 = 18.8
🤖 AI Readiness / GEO (40% weight)73 × 0.40 = 29.2
⚡ Performance (20% weight)68 × 0.20 = 13.6
🏗️ Architecture & Trust (15% weight)78 × 0.15 = 11.7
Weighted sum = 18.8 + 29.2 + 13.6 + 11.7
Global SEODiff Score = 73 (B)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
48
Structure
avg 36
42
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 3%
Rank #28986
+7 pts
Gap
AI (ACRI)
Top 9%
Score 79/100

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

Why salk.edu ranks here

Tech stackWordPress
Industryeducation
RenderingSSR
Schema coverage1 blocks
Token bloat10.4×

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

75/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

37 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

86 chars
Too short

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✗ Has <h2> headings — found 0
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — Salk Institute for Biological Studies
  • ✓ og:description — THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all.
  • ✓ 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 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 →
salk.edu
58
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 48/100 — Fair
Structured Elements 46 elements (46 lists, 0 rows, 0 headers)
Total Words655
Raw Density7.0%

🏷️ Schema Health Docs

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

Schema Coverage Map

3/7 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.
💡FAQ schema missing. Adding FAQPage schema lets AI models directly extract Q&A pairs for Featured Snippets and chatbot answers.

📐 AI Efficiency Metrics Docs

60
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability60/100 — 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

9%
🗑️ 91%
Useful Content (16.9 KB)Bloat (158.9 KB)
Token Bloat Ratio10.4× — Normal

Multimodal Readiness

Visual Context11% Optimized for Vision
Image Alt Coverage2 / 18 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 11% of images have alt text. Add descriptive alt attributes so multimodal AI (ChatGPT Vision) can understand your images.

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 90.4% · SNR: 0.11 · Signal: 4326 / Noise: 40675 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 salk.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
The Salk Institute for Biological Studies Immigration Services provides comprehensive visa and travel support for J-1 and J-2 exchange visitors,
Target Audience
J-1 and J-2 exchange visitors, dependents, researchers, and international students at the Salk Institute.
Pricing Model
Fees for services are not explicitly stated, but include SEVIS fees and potential visa application processing fees.
🔗 Integration Partners
US Immigration and Customs Enforcement (ICE)US Consulates and Embassies
🛡️ Compliance Standards
SEVIS
🏆 Competitive Moat
Specialized immigration support tailored to Salk Institute’s J-1 and J-2 programs, combined with detailed guidance on US visa procedures and potential delays, offering a streamlined and secure process for international visitors.
📊 Content Depth
9/10
🔄 Programmatic SEO Signals
DS-2019SEVIS FeeUS Consulate/Embassy
⚡ Key Pain Points
• Complex visa application process
• Potential visa processing delays
• Uncertainty regarding intent to return home
• Need for detailed documentation
• Administrative processing delays
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
Servernginx
CDN
HTTP Status200
Load Time649 ms
Raw HTML Size175.8 KB
Visible Text Size16.9 KB

Performance & Speed

68/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

649 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

588
DOM nodes
176 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → public, max-age=604800
  • ✗ 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

78/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

92
internal links
8
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 58/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for salk.edu
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/salk.edu" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=salk.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 96 pages · Deep-10

Homepage ACRI
58
Single-page score
-6
Moderate hidden bloat
Δ delta
Site-Wide ACRI
52
Avg across 96 pages · Range 40–82
Topical Cohesion
3%
Topical Drift
TF-IDF cosine similarity
Total Words
57525
Avg Bloat
123.5×
Page Type ACRI Token Bloat Words Status
https://www.salk.edu/science/core-facilities/resources/
Instrumentation & Services - Salk Institute for Biological Studies
pricing 82 6.0× 6533 💰 Pricing
https://www.salk.edu/about/doing-business-with-the-salk-institute/
Doing Business with the Salk Institute - Salk Institute for Biological Studies
pricing 72 13.8× 2262 💰 Pricing
https://www.salk.edu/about/careers/immigration-services/visa-and-travel-information/
Visa and Travel Information - Salk Institute for Biological Studies
pricing 72 11.0× 3156 💰 Pricing
https://www.salk.edu/about/awards-and-accolades/
Awards and Accolades - Salk Institute for Biological Studies
pricing 69 20.0× 1649 💰 Pricing
https://www.salk.edu/about/careers/immigration-services/immigration-visa-terminology/
Immigration / Visa Terminology - Salk Institute for Biological Studies
about 69 19.7× 1582
https://www.salk.edu/about/careers/immigration-services/immigration-services-resources/taxes/
Taxes - Salk Institute for Biological Studies
about 69 15.5× 2005
https://www.salk.edu/about/history-of-salk/in-memoriam/
Memoriam - Salk Institute for Biological Studies
pricing 69 18.0× 1848 💰 Pricing
https://www.salk.edu/about/visiting-salk/virtual-architecture-tour/
Virtual Tour - Salk Institute for Biological Studies
pricing 68 16.3× 1983 💰 Pricing
https://www.salk.edu/about/our-community/research-and-training-opportunities/salk-edge-summer-program/
Salk Edge Summer Program - Salk Institute for Biological Studies
pricing 64 28.6× 1125 💰 Pricing
https://www.salk.edu/about/careers/academic-training/society-of-research-fellows/activities/
Activities - Salk Institute for Biological Studies
pricing 64 25.1× 1292 💰 Pricing
https://www.salk.edu/about/history-of-salk/
History of Salk - Salk Institute for Biological Studies
pricing 64 28.3× 1115 💰 Pricing
https://www.salk.edu/about/careers/academic-training/society-of-research-fellows/
Activities - Salk Institute for Biological Studies
pricing 64 25.1× 1292 💰 Pricing
https://salk.edu/faq
FAQ - Salk Institute for Biological Studies
support 63 33.5× 879
https://www.salk.edu/about/visiting-salk/frequently-asked-questions/
Frequently Asked Questions - Salk Institute for Biological Studies
pricing 61 31.2× 991 💰 Pricing
https://www.salk.edu/about/education-outreach/teacher-resources/
Teacher Resources - Salk Institute for Biological Studies
pricing 61 40.9× 758 💰 Pricing
https://www.salk.edu/about/institute-faqs/
Institute FAQs - Salk Institute for Biological Studies
pricing 60 35.3× 841 💰 Pricing
https://www.salk.edu/about/our-community/research-and-training-opportunities/summer-research-opportunities/
Salk Summer Undergraduate Research Fellowship - Salk Institute for Biological Studies
about 60 49.4× 596
https://www.salk.edu/about/education-outreach/programs/high-school-scholars/faq/
Heithoff-Brody High School Summer Scholars Program at the Salk Institute FAQ - Salk Institute for Biological Studies
pricing 60 37.5× 781 💰 Pricing
https://www.salk.edu/about/education-outreach/programs/high-school-scholars/
Heithoff-Brody High School Summer Scholars Program - Salk Institute for Biological Studies
pricing 60 40.5× 731 💰 Pricing
https://www.salk.edu/about/visiting-salk/
Salk Docent-Led Architecture Tours - Salk Institute for Biological Studies
pricing 60 39.9× 733 💰 Pricing
Showing 20 of 96 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
/about/ 65 55 1% 91.3× Bot Blocked
/science/ 26 47 1% 199.2× Bot Blocked
/events/ 3 45 1% 220.0× Bot Blocked
/faq/ 1 63 0% 33.5× High JS Bloat
/biocomputation-initiative/ 1 60 1% 46.0× Bot Blocked
🔗
Outbound External Citations
0 unique external domains cited across 96 pages
helix.salk.edu ×96
linkedin.com ×96
owa.salk.edu ×96
salkland.salk.edu ×96
inside.salk.edu ×96
twitter.com ×96
salkinstitute.donorsupport.co ×96
instagram.com ×96
🔄 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/salk.edu

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

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📊 Semantic Share of Voice

How often would an AI cite salk.edu 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 salk.edu. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →

Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 9% 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 Salk?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Salk does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Salk work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Salk."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
79
Projected Score
87
Improvement
+8 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).

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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