sports-reference.com 67 C
🛡️ SEO 38 🤖 GEO 74 ⚡ Perf 74 🏗️ Arch 90

sports-reference.com — Global SEODiff Score 67/100

sports-reference.com
📊

sports-reference.com scores 60/100 on the AI-Readiness Index, placing it in the middle tier of indexed domains — there is clear room for improvement. Within the infrastructure vertical, this places sports-reference.com above the industry average of 57 —, suggesting strong competitive positioning in AI search. While the majority of content is server-rendered, the 15% ghost ratio suggests some content remains hidden from static crawlers. A 7.2× bloat ratio is typical for sites in this tech tier — not wasteful, but streamlining could further boost extractability. The complete absence of JSON-LD schema is a missed opportunity: even basic Organization markup would improve how AI crawlers understand this domain. Partial bot access means the domain is visible to some AI systems but not accessible to others — GPTBot remain blocked.

67
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (38) is your bottleneck.
🎯 Top Fix: Add Organization + WebSite JSON-LD → +5–8 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 4 snapshots
Mar 1 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than sports-reference.com?
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)38 × 0.25 = 9.5
🤖 AI Readiness / GEO (40% weight)74 × 0.40 = 29.6
⚡ Performance (20% weight)74 × 0.20 = 14.8
🏗️ Architecture & Trust (15% weight)90 × 0.15 = 13.5
Weighted sum = 9.5 + 29.6 + 14.8 + 13.5
Global SEODiff Score = 67 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
80
Bot Access
avg 92
94
Rendering
avg 93
34
Structure
avg 35
0
Schema
avg 9
55
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 2%
Rank #23328
+50 pts
Gap
AI (ACRI)
Top 52%
Score 60/100

sports-reference.com 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 sports-reference.com ranks here

Tech stackExpress
RenderingHybrid
Schema coverage0 blocks
Token bloat7.2×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • Add basic Organization and WebSite JSON-LD to fix “0 schema blocks” (see Schema Coverage).
  • 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

38/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

82 chars
Too long

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

248 chars
Too long

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 18
  • ✓ <h2> not before <h1>

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — Sports Reference | Sports Stats, fast, easy, and up-to-date | Sports-Reference.com
  • ✓ og:description — Sports Stats, fast, easy, and up-to-date. A group of sites providing both basic and sabermetric statistics and resources for sports fans everywhere. Our aim is to be the easiest-to-use, fastest, most complete sources for sports statistics anywhere.
  • ✓ og:image — preview
  • ✓ 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

74/100 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 infrastructure sector, safely.co.jp (ACRI: 90) 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 →
sports-reference.com
45
Your ACRI Score
90
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. safely.co.jp has schema coverage of 3 blocks and uses WordPress. 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)
Blocked
ClaudeBot (Anthropic)
Allowed
CCBot (Common Crawl)
Allowed
Google-Extended
Allowed
Googlebot
Allowed
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.

👻 Rendering (Ghost Ratio) Docs

Ghost Ratio 15%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type Hybrid

📊 Structure & Information Density Docs

Structure Grade 34/100 — Low
Structured Elements 54 elements (54 lists, 0 rows, 0 headers)
Total Words1596
Raw Density3.4%
💡Low structure score (34/100). Your content appears as a wall of text with few structured HTML elements. You have 54 list items, 0 table rows, 0 table headers. Convert features into <ul> lists and data into <table> elements to help AI models extract structured information.

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks0 — No JSON-LD detected

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

48
AI Extractability
Low
Crawl Cost
Low
Blocklist Risk
Extractability48/100 — AI models can partially extract answers from this page
Crawl CostLow (30/100) — efficient for AI crawlers to process
Blocklist RiskLow — 1 of 5 AI crawlers blocked

Token Bloat Research

13%
🗑️ 87%
Useful Content (13.7 KB)Bloat (84.7 KB)
Token Bloat Ratio7.2× — Normal

Multimodal Readiness

Visual Context100% Optimized for Vision
Image Alt Coverage18 / 18 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: 86.1% · SNR: 0.16 · Signal: 3497 / Noise: 21679 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 sports-reference.com 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
Olympedia provides comprehensive Olympic sports data and history, powered by a collaboration with the IOC.
Target Audience
Sports enthusiasts, researchers, and fans seeking detailed Olympic information.
Pricing Model
⚠ SEMANTIC VOID
🏆 Competitive Moat
Exclusive Olympic data and historical archive, developed in partnership with the IOC.
📊 Content Depth
5/10
⚡ Key Pain Points
• Limited SEO signals
• Lack of monetization strategy
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

FrameworkExpress
AI-Readiness Score55/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time641 ms
Raw HTML Size98.3 KB
Visible Text Size13.7 KB

Performance & Speed

74/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

641 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

628
DOM nodes
98 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✓ CDN cache status → HIT
  • ✓ CDN detected → cloudflare

🔬 Tracker Tax

1
tracker scripts
1
third-party domains
0.0%
token overhead
Minimal tracker load — clean signal for bots
js.hs-scripts.com
📐 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

90/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✓ Sitemap declared in robots.txt → https://www.sports-reference.com/sitemaps/sitemap.xml
  • ✓ Googlebot allowed
  • ✗ GPTBot allowed
  • ✓ ClaudeBot allowed

🔗 Linking

120
internal links
94
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 45/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for sports-reference.com
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/sports-reference.com" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=sports-reference.com" 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 39 pages · Deep-10

Homepage ACRI
45
Single-page score
+13
Subpages outperform homepage
Δ delta
Site-Wide ACRI
59
Avg across 39 pages · Range 0–90
Topical Cohesion
10%
Topical Drift
TF-IDF cosine similarity
Total Words
54531
Avg Bloat
11.4×
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://www.sports-reference.com/blog/approximate-value-methodology/
Approximate Value: Methodology | Sports-Reference.com
pricing 90 7.3× 3231 💰 Pricing
https://sports-reference.com/blog
In-Page Navigation Redesign on Pro-Football Reference | Sports-Reference.com
pricing 90 8.4× 2927 💰 Pricing
https://www.sports-reference.com/blog/2020/04/nba-play-by-play-lineup-and-shooting-stats-added-back-to-1996-97/
NBA Play-By-Play, Lineup and Shooting Stats Added Back to 1996-97 | Sports-Reference.com
pricing 80 10.2× 2260 💰 Pricing
https://www.sports-reference.com/blog/2015/03/srs-calculation-details/
SRS Calculation Details | Sports-Reference.com
pricing 80 10.4× 2178 💰 Pricing
https://www.sports-reference.com/blog/2024/05/baseball-reference-is-sunsetting-the-oracle-of-baseball/
Baseball Reference is sunsetting the Oracle of Baseball | Sports-Reference.com
pricing 80 11.3× 1372 💰 Pricing
https://www.sports-reference.com/blog/2016/11/exporting-data/
Exporting Data | Sports-Reference.com
pricing 77 14.4× 1493 💰 Pricing
https://www.sports-reference.com/blog/2019/06/college-baseball-stats-added-to-baseball-reference/
College Baseball Stats Added to Baseball Reference | Sports-Reference.com
pricing 77 15.9× 1348 💰 Pricing
https://www.sports-reference.com/blog/pfr-hof-monitor-methodology/
PFR HOF Monitor: Methodology | Sports-Reference.com
pricing 77 13.1× 1615 💰 Pricing
https://www.sports-reference.com/blog/approximate-value/
Approximate Value | Sports-Reference.com
pricing 77 13.3× 1612 💰 Pricing
https://www.sports-reference.com/blog/2021/02/team-splits-by-referee-now-available-on-basketball-reference/
Team Splits By Referee Now Available on Basketball Reference | Sports-Reference.com
pricing 77 16.7× 1265 💰 Pricing
https://www.sports-reference.com/blog/2023/09/success-rate-comes-to-pro-football-reference/
Success Rate Comes to Pro Football Reference! | Sports-Reference.com
pricing 77 15.8× 1545 ⚠️ RAG Fracture
https://www.sports-reference.com/blog/2013/03/best-nba-scoring-duos-in-one-game-mailbag/
Best NBA Scoring Duos in One Game (Mailbag) | Sports-Reference.com
pricing 77 11.9× 7138 💰 Pricing
https://www.sports-reference.com/blog/2012/10/1992-united-states-select-team-roster/
1992 United States Select Team Roster | Sports-Reference.com
pricing 77 15.2× 1482 💰 Pricing
https://www.sports-reference.com/blog/2013/01/player-birthdays-2/
Player Birthdays | Sports-Reference.com
pricing 77 17.1× 1246 💰 Pricing
https://www.sports-reference.com/blog/2015/03/player-comparison-tool/
Player Comparison Tool | Sports-Reference.com
pricing 77 17.2× 1228 💰 Pricing
https://www.sports-reference.com/blog/2019/12/introducing-the-pfr-hof-monitor/
Introducing the PFR HOF Monitor | Sports-Reference.com
pricing 77 12.8× 1919 💰 Pricing
https://www.sports-reference.com/blog/2012/11/compare-two-players-stats-side-by-side/
Compare Two Players’ Stats Side-by-Side | Sports-Reference.com
pricing 77 16.5× 1315 💰 Pricing
https://www.sports-reference.com/blog/2025/01/2025-mlb-marcel-projections-live/
2025 MLB Marcel Projections Live | Sports-Reference.com
pricing 77 18.0× 1168 💰 Pricing
https://www.sports-reference.com/blog/2020/09/__trashed-2/
Baseball-Reference Adds Championship Win Probability Added | Sports-Reference.com
pricing 77 12.7× 1738 💰 Pricing
https://www.sports-reference.com/blog/2017/12/player-comparison-finders-added-to-baseball-reference/
Player Comparison Finders Added to Baseball Reference | Sports-Reference.com
pricing 77 17.1× 1240 💰 Pricing
Showing 20 of 39 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
/blog/ 20 79 0% 13.8× High JS Bloat
/cbb/ 2 70 0% 10.7× High JS Bloat
/about/ 1 57 0% 20.5× High JS Bloat
/about.html/ 1 77 0% 7.0× High JS Bloat
/429.html/ 1 64 0% 13.1× High JS Bloat
/pricing/ 1 0 0% 0.0× Low AI Readiness
/products/ 1 0 0% 0.0× Low AI Readiness
/contact/ 1 0 0% 0.0× Low AI Readiness
/contact.html/ 1 46 0% 32.9× High JS Bloat
/internships.html/ 1 77 0% 5.9× High JS Bloat
/data_use.html/ 1 67 0% 12.1× High JS Bloat
/features/ 1 0 0% 0.0× Low AI Readiness
/bot-traffic.html/ 1 59 0% 24.1× High JS Bloat
/docs/ 1 0 0% 0.0× Low AI Readiness
/integrations/ 1 0 0% 0.0× Low AI Readiness
🔗
Outbound External Citations
0 unique external domains cited across 39 pages
basketball-reference.com ×31
pro-football-reference.com ×31
hockey-reference.com ×31
baseball-reference.com ×31
sportsreference.threadless.com ×29
sportslogos.net ×29
fbref.com ×29
youtube.com ×28
🔄 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/sports-reference.com

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

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📊 Semantic Share of Voice

How often would an AI cite sports-reference.com 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 sports-reference.com. 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": "Sports-reference",
  "url": "https://sports-reference.com",
  "logo": "https://cdn.ssref.net/req/202603181/favicons/sr/favicon-48.png",
  "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": "Sports-reference",
  "url": "https://sports-reference.com",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://sports-reference.com/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Allow GPTBot in robots.txt
High Impact ⏱ 2 min
GPTBot is blocked — your content cannot appear in ChatGPT citations. Add this to your robots.txt:
text
User-agent: GPTBot
Allow: /

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for sports-reference.com:

Current Score
60
Projected Score
84
Improvement
+24 pts
Allow GPTBot +8 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
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
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