adoptium.net 63 C
🛡️ SEO 53 🤖 GEO 63 ⚡ Perf 59 🏗️ Arch 86

adoptium.net — Global SEODiff Score 63/100

adoptium.net
📊

With a solid 77/100 ACRI, adoptium.net is well-positioned for AI search — better than 86% of sites in the Radar. Compared to other developer sites (avg score: 57), adoptium.net performs above the benchmark, suggesting strong competitive positioning in AI search. The low ghost ratio (5%) confirms that what crawlers see matches what users see — a hallmark of strong SSR implementation. A 21.3× token bloat ratio means crawlers must process significantly more tokens to reach the actual content — a drag on extraction efficiency. 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.

63
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Traditional SEO (53) is your bottleneck.
🎯 Top Fix: Reduce token bloat (21×) → +5–10 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 19 snapshots
Feb 22 Mar 21
🔔 Recent AI Indexing Activity
No recent changes detected by adaptive crawler.
Does your site score higher than adoptium.net?
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)53 × 0.25 = 13.2
🤖 AI Readiness / GEO (40% weight)63 × 0.40 = 25.2
⚡ Performance (20% weight)59 × 0.20 = 11.8
🏗️ Architecture & Trust (15% weight)86 × 0.15 = 12.9
Weighted sum = 13.2 + 25.2 + 11.8 + 12.9
Global SEODiff Score = 63 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
43
Structure
avg 35
42
Schema
avg 9
70
Tech Stack
avg 63
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 3%
Rank #31072
+11 pts
Gap
AI (ACRI)
Top 14%
Score 77/100

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

Why adoptium.net ranks here

Tech stackNext.js
Industrydeveloper
RenderingSSR
Schema coverage1 blocks
Token bloat21.3×

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

53/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

15 chars
Too short

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

117 chars
Too short

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✗ Exactly 1 <h1> tag — found 4
  • ✓ Has <h2> headings — found 17
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✗ Canonical tag present
  • ✓ 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 — Adoptium
  • ✓ og:description — Eclipse Adoptium provides prebuilt OpenJDK binaries from a fully open source set of build scripts and infrastructure.
  • ✓ 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

63/100 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 developer sector, hikkoshizamurai.jp (ACRI: 88) 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 →
adoptium.net
53
Your ACRI Score
88
Industry Peer ACRI
AI models prioritize pages with strong semantic structure and schema coverage. hikkoshizamurai.jp has schema coverage of 5 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 5%
0% — Safe 50% 100% — Risk
Status Server-Side Rendered (Safe)
Rendering Type SSR

📊 Structure & Information Density Docs

Structure Grade 43/100 — Fair
Structured Elements 66 elements (66 lists, 0 rows, 0 headers)
Total Words1195
Raw Density5.5%

🏷️ Schema Health Docs

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

Schema Coverage Map

1/7 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.
💡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
Medium
Crawl Cost
None
Blocklist Risk
Extractability53/100 — 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

4%
🗑️ 96%
Useful Content (8.5 KB)Bloat (172.1 KB)
Token Bloat Ratio21.3× — Heavy

Multimodal Readiness

Visual Context98% Optimized for Vision
Image Alt Coverage49 / 50 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Your HTML is 180.5 KB, but only 8.5 KB is text. 4% useful / 96% bloat. AI crawlers have limited context windows (e.g. 128k tokens). This level of bloat (21.3×) risks context-window truncation by ChatGPT, Claude, and Gemini. Reduce inline scripts, CSS, hydration payloads, and tracking code.

🔥 Structural Entropy Check Research

0 Entropy
Poor Token Bloat: High
Noise Ratio: 95.3% · SNR: 0.05 · Signal: 2166 / Noise: 44051 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 adoptium.net 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
Eclipse Adoptium provides high-performance, enterprise-grade Java runtimes and related technologies for the Java ecosystem, supporting a wide range of platforms and use cases.
Target Audience
Java developers, enterprise IT professionals, DevOps engineers, researchers, and anyone utilizing Java applications.
Pricing Model
Open-source, with associated infrastructure costs.
🏆 Competitive Moat
Extensive TCK testing, a robust continuous integration pipeline, and a community-driven approach to runtime development.
📊 Content Depth
6/10
⚡ Key Pain Points
• Lack of standardized build and test systems for OpenJDK
• Need for reproducible builds across platforms
Analyzed by SEODiff AI · 2026-03-01

🔧 Tech Stack

FrameworkNext.js
AI-Readiness Score70/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time733 ms
Raw HTML Size180.5 KB
Visible Text Size8.5 KB

Performance & Speed

59/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

733 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

955
DOM nodes
180 KB
HTML payload
Moderate weight — acceptable for most scenarios

🗄️ Cache & CDN

  • ✓ Cache-Control header → private,no-cache,no-store,max-age=0,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

86/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

32
internal links
57
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 53/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for adoptium.net
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/adoptium.net" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=adoptium.net" 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 99 pages · Deep-10

Homepage ACRI
53
Single-page score
0
Consistent readability
Δ delta
Site-Wide ACRI
53
Avg across 99 pages · Range 0–74
Topical Cohesion
12%
Topical Drift
TF-IDF cosine similarity
Total Words
57569
Avg Bloat
105.2×
Page Type ACRI Token Bloat Words Status
https://adoptium.net/news/2022/11/a-month-after-eclipsecon-adoptium-community-day-summary-and-more/
A month after EclipseCon - Adoptium Community day summary, and more. | Adoptium
pricing 74 17.7× 1771 💰 Pricing
https://adoptium.net/news/2025/05/aqavit-in-2025/
AQAvit in 2025 | Adoptium
pricing 74 18.3× 1635 💰 Pricing
https://adoptium.net/news/2022/08/a-summary-of-the-july-2022-retrospectives/
A Summary of the July 2022 Retrospectives | Adoptium
pricing 74 15.0× 2176 💰 Pricing
https://adoptium.net/news/2023/09/Reproducible-Comparison-Builds/
Reproducible Comparison Builds | Adoptium
other 69 26.9× 1026
https://adoptium.net/news/2023/06/adoptium-automated-deployment-of-nagios/
Adoptium Automated Deployment Of Nagios | Adoptium
other 69 28.1× 1041
https://adoptium.net/news/2021/08/adoptium-celebrates-first-release/
Adoptium Celebrates First Release | Adoptium
pricing 69 26.4× 1045 💰 Pricing
https://adoptium.net/news/2022/06/adoptium-reproducible-builds/
Reproducible Builds at Eclipse Adoptium | Adoptium
pricing 69 24.4× 1214 💰 Pricing
https://adoptium.net/news/2024/08/adoptium-reproducible-verification-builds/
Eclipse Temurin Reproducible Verification Builds for Secure Supply Chain Validation | Adoptium
pricing 69 29.4× 934 💰 Pricing
https://adoptium.net/news/2024/02/early-access-builds-feb2024/
Tagged early access builds for all releases | Adoptium
pricing 69 27.5× 1129 💰 Pricing
https://adoptium.net/news/2024/07/eclipse-temurin-8u422-11024-1712-2104-2202-available/
Eclipse Temurin 8u422, 11.0.24, 17.0.12, 21.0.4 and 22.0.2 Available | Adoptium
pricing 69 27.9× 1176 💰 Pricing
https://adoptium.net/news/2024/11/eclipse-temurin-8u432-11025-1713-2105-2301-available/
Eclipse Temurin 8u432, 11.0.25, 17.0.13, 21.0.5 and 23.0.1 Available | Adoptium
pricing 69 31.5× 1043 💰 Pricing
https://adoptium.net/news/2022/10/a-short-exploration-of-java-class-pre-initialization/
A Short Exploration of Java Class Pre-Initialization | Adoptium
other 66 33.8× 918
https://adoptium.net/news/2023/03/adoptium-infrastructure-management-with-nagios/
Adoptium Infrastructure Management With Nagios | Adoptium
other 66 36.3× 759
https://adoptium.net/news/2022/10/adoptium-welcomes-google/
Adoptium Welcomes Google | Adoptium
pricing 66 39.8× 654 💰 Pricing
https://adoptium.net/news/2022/11/adoptium-welcomes-rivos/
Adoptium Welcomes Rivos | Adoptium
pricing 66 39.8× 653 💰 Pricing
https://adoptium.net/news/2024/02/aqavit-graduation-ceremony/
AQAvit Graduation Ceremony | Adoptium
pricing 66 34.7× 749 💰 Pricing
https://adoptium.net/news/2023/07/adoptopenjdk-jfrog-io-has-been-deprecated/
AdoptOpenJDK.jfrog.io has been deprecated! | Adoptium
pricing 66 36.8× 708 💰 Pricing
https://adoptium.net/news/2024/05/aqavit-scope/
The Scope of AQAvit | Adoptium
pricing 66 35.7× 743 💰 Pricing
https://adoptium.net/news/2023/08/early-access-builds/
Early access builds for JDK21+ | Adoptium
pricing 66 44.6× 670 💰 Pricing
https://adoptium.net/news/2024/04/eclipse-temurin-21-and-22-available-on-riscv/
Eclipse Temurin 21 and 22 Available on RISC-V | Adoptium
pricing 66 45.2× 576 💰 Pricing
Showing 20 of 99 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
/news/ 44 64 1% 44.2× Bot Blocked
/docs/ 19 58 1% 55.0× Bot Blocked
/temurin/ 5 46 1% 133.6× Bot Blocked
/stats/ 3 31 1% 968.5× Bot Blocked
/about/ 2 61 1% 49.0× Bot Blocked
/download/ 1 44 0% 205.1× High JS Bloat
/business-benefits/ 1 44 0% 159.6× High JS Bloat
/join-us/ 1 51 1% 65.7× Bot Blocked
/join/ 1 31 1% 456.4× Bot Blocked
/integrations/ 1 0 0% 0.0× Low AI Readiness
/slack/ 1 31 1% 488.6× Bot Blocked
/become-a-sustainer/ 1 31 1% 490.1× Bot Blocked
/case-studies/ 1 0 0% 0.0× Low AI Readiness
/support-us/ 1 51 1% 65.7× Bot Blocked
/sustainers/ 1 64 0% 27.5× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 99 pages
github.com ×92
bsky.app ×92
marketplace.eclipse.org ×92
linkedin.com ×92
eclipse.org ×92
youtube.com ×92
fosstodon.org ×92
x.com ×92
🔄 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/adoptium.net

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

🔗 Similar developer Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
adoptium.net (this site) 53 77 Next.js 21.3× 1
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chromeindustries.jp 78 87 Next.js 3.4× 2 Compare →
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📊 Semantic Share of Voice

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

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": "Adoptium",
  "url": "https://adoptium.net",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://adoptium.net/search?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 4% 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 Adoptium?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Adoptium does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Adoptium work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Adoptium."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for adoptium.net:

Current Score
77
Projected Score
89
Improvement
+12 pts
Add WebSite schema +4 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
🔍 Found indexing issues?
Run a free deep audit to diagnose crawled-not-indexed, soft 404s, redirect errors, and more.
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