cancer.org 67 C
🛡️ SEO 50 🤖 GEO 80 ⚡ Perf 46 🏗️ Arch 91

cancer.org — Global SEODiff Score 67/100

cancer.org
📊

At 76/100, the ACRI for cancer.org indicates strong fundamentals in AI extractability, surpassing the majority of indexed sites. Within the healthcare vertical, this places cancer.org 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. A tight 2.5× token bloat ratio reflects disciplined markup: minimal noise between the crawler and the content it needs. 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.

67
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (46) is your bottleneck.
🎯 Top Fix: Monitor weekly to catch regressions early
🔬 Automated SEODiff Assessment · Snapshot: Feb 28, 2026 · 📋 API
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🧮 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)46 × 0.20 = 9.2
🏗️ Architecture & Trust (15% weight)91 × 0.15 = 13.7
Weighted sum = 12.5 + 32.0 + 9.2 + 13.7
Global SEODiff Score = 67 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
97
Rendering
avg 93
76
Structure
avg 36
2
Schema
avg 9
65
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 0.3%
Rank #3035
+16 pts
Gap
AI (ACRI)
Top 16%
Score 76/100

cancer.org 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 cancer.org ranks here

Tech stackAdobe Experience Manager
Industryhealthcare
RenderingHybrid
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

50/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

52 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

147 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 9
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — End Cancer As We Know It
  • ✗ og:description
  • ✗ 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

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 healthcare sector, agedcarefind.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 →
cancer.org
69
Your ACRI Score
86
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. agedcarefind.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 10%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 76/100 — Good
Structured Elements 675 elements (675 lists, 0 rows, 0 headers)
Total Words3866
Raw Density17.5%

🏷️ 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

68
AI Extractability
Medium
Crawl Cost
None
Blocklist Risk
Extractability68/100 — 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

40%
🗑️ 60%
Useful Content (164.7 KB)Bloat (239.6 KB)
Token Bloat Ratio2.5× — Lean

Multimodal Readiness

Visual Context85% Optimized for Vision
Image Alt Coverage40 / 47 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: 59.3% · SNR: 0.69 · Signal: 42173 / Noise: 61342 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/gemma-3-4b-it-qat-4bit) analyzed the extracted content of cancer.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
The American Cancer Society provides comprehensive information and support resources related to melanoma skin cancer, including research updates, prevention strategies,
Target Audience
Patients with melanoma, caregivers, family members, and healthcare professionals (doctors, dermatologists, genetic counselors).
Pricing Model
None (Non-profit organization)
🏆 Competitive Moat
Extensive content library and established brand reputation combined with 24/7 support services and community resources.
📊 Content Depth
9/10
🔄 Programmatic SEO Signals
Multiple pages dedicated to specific aspects of melanoma (e.g., ‘Causes and prevention’, ‘Treating Melanoma Skin Cancer’)Use of ‘Show’ and ‘Hide’ buttons to dynamically display content sections.
⚡ Key Pain Points
• Lack of structured FAQ schema
• Thin landing pages for some features (e.g., smartphone apps)
• Reliance on user-generated content and external resources for some information
Model: mlx-community/gemma-3-4b-it-qat-4bit · Analyzed: 2026-02-28 · Data extracted from the site’s main content via strict JSON prompting.

🔧 Tech Stack

AI-Readiness Score65/100
Server
CDN
HTTP Status200
Load Time540 ms
Raw HTML Size404.4 KB
Visible Text Size164.7 KB

Performance & Speed

46/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

540 ms
Acceptable — room for improvement

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

📦 Page Weight

3625
DOM nodes
404 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → max-age=3600, s-maxage=5400, stale-while-revalidate=43200, stale-if-error=43200, public, 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

91/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

740
internal links
32
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 69/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for cancer.org
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/cancer.org" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=cancer.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 1002 pages · Deep-10

Homepage ACRI
69
Single-page score
-3
Consistent readability
Δ delta
Site-Wide ACRI
67
Avg across 1002 pages · Range 41–80
Topical Cohesion
3%
Topical Drift
TF-IDF cosine similarity
Total Words
999935
Avg Bloat
40.6×
RAG Fractures [?]
5
⚠️
5 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 5 pages will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page Type ACRI Token Bloat Words Status
https://www.cancer.org/cancer/types/lung-carcinoid-tumor/if-you-have-lung-carcinoid-tumor.html
If You Have a Lung Neuroendocrine Tumor | American Cancer Society
pricing 80 18.0× 3233 💰 Pricing
https://www.cancer.org/cancer/types/brain-spinal-cord-tumors-children/treating/surgery.html
Surgery for Brain Tumors in Children | American Cancer Society
pricing 80 19.7× 3004 💰 Pricing
https://www.cancer.org/cancer/types/anal-cancer/if-you-have-anal-cancer.html
If You Have Anal Cancer | Anal Cancer Overview | American Cancer Society
pricing 80 18.8× 3199 💰 Pricing
https://www.cancer.org/cancer/types/lung-carcinoid-tumor/detection-diagnosis-staging/staging.html
Lung Neuroendocrine Tumor Stages | American Cancer Society
pricing 80 18.6× 3213 💰 Pricing
https://www.cancer.org/cancer/types/laryngeal-and-hypopharyngeal-cancer/if-you-have-laryngeal-hypopharyngeal-cancer.html
If You Have Laryngeal or Hypopharyngeal Cancer | American Cancer Society
pricing 80 15.4× 3930 💰 Pricing
https://www.cancer.org/cancer/types/gastrointestinal-stromal-tumor/if-you-have-gastrointestinal-stromal-tumor-gist.html
If You Have a Gastrointestinal Stromal Tumor (GIST) | American Cancer Society
pricing 80 18.3× 3294 💰 Pricing
https://www.cancer.org/cancer/types/gastrointestinal-carcinoid-tumor/if-you-have-gastrointestinal-carcinoid-tumor.html
If You Have a Gastrointestinal Neuroendocrine Tumor | American Cancer Society
pricing 80 18.3× 3314 💰 Pricing
https://www.cancer.org/cancer/types/melanoma-skin-cancer/about/new-research.html
Melanoma Skin Cancer Research | Melanoma Studies | American Cancer Society
pricing 75 19.9× 2982 💰 Pricing
https://www.cancer.org/cancer/types/acute-myeloid-leukemia/detection-diagnosis-staging/how-diagnosed.html
Tests for Acute Myeloid Leukemia (AML) | American Cancer Society
pricing 75 18.9× 3126 💰 Pricing
https://www.cancer.org/cancer/types/adrenal-cancer/if-you-have-adrenal-cancer.html
If You Have Adrenal Cancer | Adrenal Cancer Guide | American Cancer Society
pricing 75 26.4× 2189 💰 Pricing
https://www.cancer.org/cancer/types/bone-cancer/treating/surgery.html
Surgery for Bone Cancer | American Cancer Society
pricing 75 24.7× 2407 💰 Pricing
https://www.cancer.org/cancer/types/brain-spinal-cord-tumors-adults/treating/radiation-therapy.html
Radiation Therapy for Brain Tumors in Adults | American Cancer Society
pricing 75 26.6× 2196 💰 Pricing
https://www.cancer.org/cancer/types/brain-spinal-cord-tumors-adults/treating/targeted-therapy.html
Targeted Drug Therapy for Brain Tumors in Adults | American Cancer Society
pricing 75 30.9× 1831 💰 Pricing
https://www.cancer.org/cancer/types/brain-spinal-cord-tumors-children/detection-diagnosis-staging/how-diagnosed.html
Tests for Brain and Spinal Cord Tumors in Children | American Cancer Society
pricing 75 18.8× 3144 💰 Pricing
https://www.cancer.org/cancer/types/brain-spinal-cord-tumors-children/treating.html
Treating Brain Tumors in Children | American Cancer Society
pricing 75 15.2× 4401 💰 Pricing
https://www.cancer.org/cancer/types/breast-cancer-in-men/treating.html
Treating Breast Cancer in Men | American Cancer Society
pricing 75 16.8× 3761 💰 Pricing
https://www.cancer.org/cancer/types/breast-cancer-in-men/treating/surgery.html
Surgery for Breast Cancer in Men | American Cancer Society
pricing 75 22.6× 2604 💰 Pricing
https://www.cancer.org/cancer/types/breast-cancer-in-men/after-treatment.html
After Male Breast Cancer Treatment | American Cancer Society
pricing 75 18.6× 3206 💰 Pricing
https://www.cancer.org/cancer/types/laryngeal-and-hypopharyngeal-cancer/after-treatment/follow-up.html
Throat Cancer Follow-Up | Living as a Throat Cancer Survivor | American Cancer Society
pricing 75 17.2× 3520 💰 Pricing
https://www.cancer.org/cancer/types/chronic-lymphocytic-leukemia/treating/monoclonal-antibodies.html
Immunotherapy for CLL | American Cancer Society
pricing 75 29.1× 1999 💰 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
/cancer/ 497 69 0% 41.0× High JS Bloat
/contact/ 1 67 0% 90.1× High JS Bloat
/cancer.html/ 1 67 0% 51.2× High JS Bloat
/about/ 1 72 0% 119.2× High JS Bloat
🔄 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/cancer.org

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

🔗 Similar healthcare Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
cancer.org (this site) 69 76 Adobe Experience Manager 2.5× 1
chemistop.com 80 86 Custom / Proprietary 2.5× 1 Compare →
reliantmedicalgroup.org 82 88 WordPress 2.5× 1 Compare →
newly-registered-domains.whoisxmlapi.com 81 84 WordPress 1.9× 1 Compare →
blogs.juniper.net 82 88 WordPress 3.3× 1 Compare →
volunteerforever.com 80 88 WordPress 4.7× 1 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite cancer.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…

🎭

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.

72
Homepage ACRI
64
Inner Avg ACRI
+8
ACRI Delta
20%
Homepage Ghost
11%
Inner Avg Ghost
4
Drift Score [?]
Worst Inner Pages
67 20% pricing https://cancer.org/contact
66 10% about https://www.cancer.org/cancer/types/multiple-myeloma/about/what-is-multiple-myeloma.html
66 10% about https://www.cancer.org/cancer/types/basal-and-squamous-cell-skin-cancer/about/new-research.html
🛡️

E-E-A-T Trust Signals

B 60/100

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
Address: 270 Peachtree St NW, Suite 1300 Atlanta , GA 30303 Donation Mailing Address PO Box 6704 Hagersto
🔗

Citation Profile

21 DOMAINS

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

42
Total Links
21
Unique Domains
2.8
Avg/Page
50%
Diversity
donate.cancer.org acseventstore.org secure.acsevents.org privacyportal.onetrust.com x.com shop.cancer.org everyou.com acsholidaycollection.org cancer.plannedgiving.org ustobaccoatlas.cancer.org
🏘️ Outbound Neighborhood Trust Avg Trust: 13.0

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to cancer.org. 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": "Cancer",
  "url": "https://cancer.org",
  "logo": "https://cancer.org/content/dam/cancer-org/images/logos/acs/favicon.ico",
  "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": "Cancer",
  "url": "https://cancer.org",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://cancer.org/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 Cancer?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Cancer does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Cancer work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Cancer."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
76
Projected Score
89
Improvement
+13 pts
Add Organization schema +6 pts
Add WebSite schema +4 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