celiac.org 61 C
🛡️ SEO 48 🤖 GEO 83 ⚡ Perf 27 🏗️ Arch 72

celiac.org — Global SEODiff Score 61/100

celiac.org
📊

At 81/100, the ACRI for celiac.org indicates strong fundamentals in AI extractability, surpassing the majority of indexed sites. Compared to other healthcare sites (avg score: 57), celiac.org performs above the benchmark, 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. A 7.2× bloat ratio is typical for sites in this tech tier — not wasteful, but streamlining could further boost extractability. Minimal structured data (1 block) limits the site's ability to communicate entity relationships to AI systems. All major AI bot user-agents (GPTBot, ClaudeBot, CCBot, Google-Extended) are permitted by robots.txt, ensuring broad AI crawler access.

61
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (27) is your bottleneck.
🎯 Top Fix: Add HSTS header → +2 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 5 snapshots
Mar 7 Mar 21
🔔 Recent AI Indexing Activity
🔄 Mar 21 Content change detected
📈 Mar 20 ACRI +1 (62→63)
📉 Mar 17 ACRI -1 (63→62)
📈 Mar 12 ACRI +1 (62→63)
Does your site score higher than celiac.org?
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)48 × 0.25 = 12.0
🤖 AI Readiness / GEO (40% weight)83 × 0.40 = 33.2
⚡ Performance (20% weight)27 × 0.20 = 5.4
🏗️ Architecture & Trust (15% weight)72 × 0.15 = 10.8
Weighted sum = 12.0 + 33.2 + 5.4 + 10.8
Global SEODiff Score = 61 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
100
Rendering
avg 93
55
Structure
avg 35
42
Schema
avg 9
85
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 7%
Rank #67019
Aligned
Gap
AI (ACRI)
Top 5%
Score 81/100

celiac.org has balanced Google and AI visibility — both rank roughly in the same tier. ACRI measures technical crawler readiness. Read the methodology →

Why celiac.org ranks here

Tech stackWordPress
Industryhealthcare
RenderingSSR
Schema coverage1 blocks
Token bloat7.2×

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

48/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

25 chars
Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

279 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✗ Exactly 1 <h1> tag — found 2
  • ✓ Has <h2> headings — found 22
  • ✗ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://celiac.org/
  • ✓ No noindex directive
  • ✓ Meta viewport set
  • ✓ HTML lang attribute → en-US
  • ➖ Hreflang tags — N/A (single language site)
  • ✓ Googlebot allowed by robots.txt

🌐 Social / OpenGraph

  • ✓ og:title — Celiac Disease Foundation
  • ✓ og:description — Our mission since 1990 has been to accelerate diagnosis, treatments in search of a cure for celiac disease and non-celiac gluten sensitivity through research, education, and advocacy. We lead the fight to increase the rate of diagnosis, to improve treatments, and to find a cure.
  • ✓ 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

83/100 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 healthcare sector, hairdresserfind.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 →
celiac.org
63
Your ACRI Score
86
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. hairdresserfind.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 55/100 — Fair
Structured Elements 220 elements (220 lists, 0 rows, 0 headers)
Total Words2458
Raw Density8.9%

🏷️ Schema Health Docs

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

Schema Coverage Map

2/7 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.

📐 AI Efficiency Metrics Docs

66
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability66/100 — 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

13%
🗑️ 87%
Useful Content (43.2 KB)Bloat (268.5 KB)
Token Bloat Ratio7.2× — Normal

Multimodal Readiness

Visual Context35% Optimized for Vision
Image Alt Coverage24 / 68 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Only 35% 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: 86.2% · SNR: 0.16 · Signal: 11048 / Noise: 68741 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 celiac.org 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
This website supports research and development of novel therapies for celiac disease, providing resources, clinical trial information, and connecting patients with researchers and healthcare professionals.
Target Audience
Patients with celiac disease, researchers, healthcare professionals, patient advocacy groups, and potential research participants.
Pricing Model
⚠ SEMANTIC VOID
🔗 Integration Partners
AnTolRxEquilliumIGY Life SciencesImcyse
🏆 Competitive Moat
Comprehensive research and clinical trial support for celiac disease therapies, connecting patients with advanced treatment options.
📊 Content Depth
8/10
🔄 Programmatic SEO Signals
Integration directory pagesTemplate comparison pages
⚡ Key Pain Points
• No structured FAQ schema
• Thin landing pages for features
Analyzed by SEODiff AI · 2026-03-03

🔧 Tech Stack

FrameworkWordPress
AI-Readiness Score85/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time2609 ms
Raw HTML Size311.7 KB
Visible Text Size43.2 KB

Performance & Speed

27/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

2609 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

1935
DOM nodes
312 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=600, must-revalidate
  • ✓ 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

72/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://celiac.org/sitemap.xml
  • ✓ Googlebot allowed
  • ✓ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

218
internal links
80
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 63/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for celiac.org
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/celiac.org" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=celiac.org" 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 59 pages · Deep-10

Homepage ACRI
63
Single-page score
-5
Consistent readability
Δ delta
Site-Wide ACRI
59
Avg across 59 pages · Range 0–75
Total Words
63575
Avg Bloat
40.6×
RAG Fractures [?]
1
⚠️
1 RAG-Chunking Fracture Detected

Poorly formatted tables or pricing grids on 1 page will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page Type ACRI Token Bloat Words Status
https://celiac.org/about-celiac-disease/future-therapies-for-celiac-disease/
Future Therapies | Celiac Disease Foundation
pricing 75 14.9× 2935 💰 Pricing
https://celiac.org/culinary-medicine-webinars/
Innovations in Culinary Medicine Webinars | Celiac Disease Foundation
pricing 75 14.8× 2708 💰 Pricing
https://celiac.org/researchawards/recipients/
Research Award Recipients | Celiac Disease Foundation
pricing 75 10.9× 4079 💰 Pricing
https://celiac.org/school-support-sessions/
Celiac Disease Foundation School Support | Celiac Disease Foundation
pricing 75 15.9× 2558 💰 Pricing
https://celiac.org/about-the-foundation/leaders-advisors-and-staff/national-staff/
Foundation Staff | Celiac Disease Foundation
pricing 75 10.2× 4530 💰 Pricing
https://celiac.org/icureceliac/about-icureceliac/frequently-asked-questions/
Frequently Asked Questions | Celiac Disease Foundation
pricing 72 17.7× 2293 💰 Pricing
https://celiac.org/blog
blog | Celiac Disease Foundation
pricing 67 38.1× 983 💰 Pricing
https://celiac.org/faq
FAQs | Celiac Disease Foundation
pricing 67 30.6× 1236 ⚠️ RAG Fracture
https://celiac.org/researchawards/support/
Support the Work of Our Researchers | Celiac Disease Foundation
pricing 67 42.6× 847 💰 Pricing
https://celiac.org/impact-fund-funding-application/
Celiac Disease Foundation Impact Fund - Funding Application | Celiac Disease Foundation
pricing 67 34.6× 650 💰 Pricing
https://celiac.org/nutrition-education-resources/
Foundations of Celiac Disease | Celiac Disease Foundation
pricing 67 31.9× 1169 💰 Pricing
https://celiac.org/nutrition-education/
Foundations of Celiac Disease | Celiac Disease Foundation
pricing 67 27.6× 1352 💰 Pricing
https://celiac.org/about-celiac-disease/treatment-and-follow-up/
Treatment & Follow-Up | Celiac Disease Foundation
pricing 67 28.7× 1351 💰 Pricing
https://celiac.org/pamelasfaq/
Pamela’s Promotion Frequently Asked Questions | Celiac Disease Foundation
pricing 67 33.8× 1066 💰 Pricing
https://celiac.org/2026/02/19/new-research-highlights-the-hidden-burden-of-celiac-disease/
New Research Highlights The Hidden Burden of Celiac Disease | Celiac Disease Foundation
pricing 67 26.9× 1431 💰 Pricing
https://celiac.org/2026/02/25/advancing-celiac-disease-research-validating-a-daily-symptom-diary-for-clinical-trials/
Advancing Celiac Disease Research: Validating a Daily Symptom Diary for Clinical Trials | Celiac Disease Foundation
pricing 67 26.7× 1436 💰 Pricing
https://celiac.org/school-college/
Resources for College Students | Celiac Disease Foundation
pricing 67 31.1× 1184 💰 Pricing
https://celiac.org/about-celiac-disease/screening-and-diagnosis/screening/
Celiac Disease Screening | Celiac Disease Foundation
pricing 67 22.5× 1756 💰 Pricing
https://celiac.org/2026/02/23/she-spoke-up-for-students-with-celiac-disease-and-college-campuses-began-to-change/
She Spoke Up for Students with Celiac Disease and College Campuses Began to Change… | Celiac Disease Foundation
pricing 67 21.1× 1855 💰 Pricing
https://celiac.org/2026/02/12/who-do-adults-with-celiac-disease-trust-a-new-study-has-answers/
Who Do Adults with Celiac Disease Trust? A New Study Has Answers… | Celiac Disease Foundation
pricing 67 23.8× 1632 💰 Pricing
Showing 20 of 59 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
/2026/ 8 67 0% 24.3× High JS Bloat
/researchawards/ 6 65 0% 45.7× High JS Bloat
/about-celiac-disease/ 5 67 0% 37.8× High JS Bloat
/icureceliac/ 3 63 0% 54.1× High JS Bloat
/about-the-foundation/ 2 70 0% 38.8× High JS Bloat
/gluten-free-living/ 2 60 0% 48.5× High JS Bloat
/docs/ 1 0 0% 0.0× Low AI Readiness
/nutrition-education-resources/ 1 67 0% 31.9× High JS Bloat
/contact/ 1 54 0% 94.9× High JS Bloat
/test/ 1 54 0% 132.6× High JS Bloat
/products/ 1 0 0% 0.0× Low AI Readiness
/nutrition-education/ 1 67 0% 27.6× High JS Bloat
/faq/ 1 67 0% 30.6× High JS Bloat
/impact-fund-funding-application/ 1 67 0% 34.6× High JS Bloat
/2025/ 1 67 0% 33.3× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 59 pages
youtube.com ×53
instagram.com ×53
facebook.com ×53
nationalhealthcouncil.org ×52
guidestar.org ×52
give.celiac.org ×52
clinical.celiac.org ×52
eat-gluten-free.celiac.org ×52
🔄 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/celiac.org

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

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

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📊 Semantic Share of Voice

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

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 Celiac?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Celiac does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Celiac work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Celiac."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for celiac.org:

Current Score
81
Projected Score
87
Improvement
+6 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
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