space.com 65 C
🛡️ SEO 58 🤖 GEO 66 ⚡ Perf 47 🏗️ Arch 97

space.com — Global SEODiff Score 65/100

space.com
📊

At 74/100, the ACRI for space.com indicates strong fundamentals in AI extractability, surpassing the majority of indexed sites. Compared to other developer sites (avg score: 57), space.com 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. Heavy markup overhead (50.0× bloat) forces AI systems to wade through excess code before finding useful information. With 4 JSON-LD schema blocks, the site provides explicit machine-readable metadata that enhances AI comprehension. Robots.txt grants unrestricted access to the key AI user-agents, which is the strongest starting position for AI visibility.

65
C — Global SEODiff Score
Comprehensive search visibility assessment
Strong foundations, but Performance (47) is your bottleneck.
🎯 Top Fix: Reduce token bloat (63×) → +5–10 pts
🔬 Automated SEODiff Assessment · Snapshot: Mar 21, 2026 · 📋 API
📈 ACRI Trend 2 snapshots
Mar 19 Mar 21
🔔 Recent AI Indexing Activity
📉 Mar 21 ACRI -1 (60→59)
📈 Mar 19 ACRI +1 (59→60)
🔄 Mar 17 Content change detected
🔄 Mar 11 Content change detected
Does your site score higher than space.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)58 × 0.25 = 14.5
🤖 AI Readiness / GEO (40% weight)66 × 0.40 = 26.4
⚡ Performance (20% weight)47 × 0.20 = 9.4
🏗️ Architecture & Trust (15% weight)97 × 0.15 = 14.5
Weighted sum = 14.5 + 26.4 + 9.4 + 14.5
Global SEODiff Score = 65 (C)
📊 ACRI Sub-Scores (AI Readiness Detail)
100
Bot Access
avg 92
99
Rendering
avg 93
57
Structure
avg 35
8
Schema
avg 9
70
Tech Stack
avg 63

Why space.com ranks here

Tech stackNext.js
Industrydeveloper
RenderingSSR
Schema coverage4 blocks
Token bloat50×+

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

58/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

53 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

141 chars
Good length

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

  • ✓ Exactly 1 <h1> tag — found 1
  • ✓ Has <h2> headings — found 16
  • ✓ <h2> not before <h1>

🔍 Indexability

  • ✓ Canonical tag present → https://www.space.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
  • ✗ og:description
  • ✗ og:image
  • ✗ twitter:card
📐 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

66/100 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 →
space.com
59
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 57/100 — Fair
Structured Elements 213 elements (213 lists, 0 rows, 0 headers)
Total Words2205
Raw Density9.7%

🏷️ Schema Health Docs

Organization Schema ❌ Missing
Product / Service Schema ⚠️ Not Found
Total Schema Blocks4 blocks

Schema Coverage Map

1/7 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.

📐 AI Efficiency Metrics Docs

45
AI Extractability
High
Crawl Cost
None
Blocklist Risk
Extractability45/100 — AI models can partially extract answers from this page
Crawl CostHigh (100/100) — expensive for AI crawlers to process
Blocklist RiskNone — 0 of 5 AI crawlers blocked

Token Bloat Research

1%
🗑️ 99%
Useful Content (17.8 KB)Bloat (1097.0 KB)
Token Bloat Ratio50×+ — Bloated

Multimodal Readiness

Visual Context86% Optimized for Vision
Image Alt Coverage38 / 44 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Your HTML is 1114.8 KB, but only 17.8 KB is text. 1% useful / 99% bloat. AI crawlers have limited context windows (e.g. 128k tokens). This level of bloat (50×+) 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: 98.4% · SNR: 0.02 · Signal: 4556 / Noise: 280821 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…

🔧 Tech Stack

FrameworkNext.js
AI-Readiness Score70/100
Server
CDN
HTTP Status200
Load Time511 ms
Raw HTML Size1114.8 KB
Visible Text Size17.8 KB

Performance & Speed

47/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

511 ms
Acceptable — room for improvement

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

📦 Page Weight

1574
DOM nodes
1115 KB
HTML payload
Heavy page — consider reducing DOM complexity

🗄️ Cache & CDN

  • ✓ Cache-Control header → no-store,private
  • ✗ 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

97/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

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

🔗 Linking

263
internal links
13
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 59/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

AI-Verified badge for space.com
Pending Audit — score below 80 threshold
<a href="https://seodiff.io/radar/domains/space.com" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=space.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 1009 pages · Deep-10

Homepage ACRI
59
Single-page score
+3
Consistent readability
Δ delta
Site-Wide ACRI
63
Avg across 1009 pages · Range 0–69
Topical Cohesion
15%
Topical Drift
TF-IDF cosine similarity
Total Words
2339103
Avg Bloat
153.7×
RAG Fractures [?]
1001
⚠️
1001 RAG-Chunking Fractures Detected

Poorly formatted tables or pricing grids on 1001 pages will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.

Page Type ACRI Token Bloat Words Status
https://space.com/about
About Space.com: Who we are and how to contact us | Space
pricing 69 68.6× 4119 ⚠️ RAG Fracture
https://www.space.com/space-exploration/human-spaceflight/its-time-to-think-about-human-reproduction-in-space-scientists-urge
It's time to think about human reproduction in space, scientists urge | Space
pricing 69 168.2× 1688 ⚠️ RAG Fracture
https://www.space.com/space-exploration/search-for-life/proteins-before-planets-how-space-ice-may-have-created-the-1st-building-blocks-of-life
Proteins before planets: How space ice may have created the 1st building blocks of life | Space
pricing 69 164.2× 1712 ⚠️ RAG Fracture
https://www.space.com/technology/aerospace/nasa-gets-new-f-15-fighter-jet-to-chase-its-x-59-quiet-supersonic-aircraft
NASA gets new F-15 fighter jet to chase its X-59 'quiet' supersonic aircraft | Space
pricing 69 167.6× 1636 ⚠️ RAG Fracture
https://www.space.com/astronomy/astronomers-relieved-as-industrial-plant-threatening-earths-darkest-sky-gets-cancelled
Astronomers relieved as industrial plant threatening Earth’s darkest sky gets cancelled | Space
pricing 69 179.8× 1609 ⚠️ RAG Fracture
https://www.space.com/stargazing/a-monstrous-sunspot-15-earths-wide-is-currently-facing-earth-heres-how-to-see-it-for-yourself
A monstrous sunspot 15 Earth's wide is currently facing Earth — Here's how to see it for yourself | Space
pricing 69 177.0× 1601 ⚠️ RAG Fracture
https://www.space.com/stargazing/astrophotography/februarys-full-moon-dazzles-skywatchers-worldwide-with-a-glistening-snow-moon
February's full moon dazzles skywatchers worldwide with a glistening 'Snow Moon' | Space
pricing 69 134.8× 2087 ⚠️ RAG Fracture
https://www.space.com/astronomy/james-webb-space-telescope/james-webb-space-telescope-finds-most-distant-galaxy-ever-detected-it-looks-nothing-like-what-we-predicted
James Webb Space Telescope finds most distant galaxy ever detected: 'It looks nothing like what we predicted' | Space
pricing 69 167.9× 1638 ⚠️ RAG Fracture
https://www.space.com/technology/unlock-a-brand-new-world-of-british-sci-fi-with-a-vpn
How to watch this Doctor Who spin-off before it's released on Disney+ | Space
pricing 69 146.3× 2137 ⚠️ RAG Fracture
https://www.space.com/astronomy/earth/nasa-satellite-watches-januarys-polar-vortex-space-photo-of-the-day-for-feb-4-2026
NASA satellite watches January's polar vortex photo of the day for Feb. 4, 2026 | Space
pricing 69 179.3× 1598 ⚠️ RAG Fracture
https://www.space.com/astronomy/exoplanets/a-cold-earth-exoplanet-just-146-light-years-away-might-be-in-its-stars-habitable-zone-if-it-exists
A 'cold Earth' exoplanet just 146 light-years away might be in its star's habitable zone  —  if it exists | Space
pricing 69 140.9× 1962 ⚠️ RAG Fracture
https://www.space.com/entertainment/space-movies-shows/with-the-mandalorian-and-grogu-movie-arriving-in-our-galaxy-soon-start-building-the-excitement-with-this-fantastic-lego-set
Start building the excitement for the Mandalorian and Grogu movie with this Lego set | Space
pricing 69 165.3× 1838 ⚠️ RAG Fracture
https://www.space.com/space-exploration/mars-rovers/nasas-perseverance-mars-rover-completes-its-1st-drive-planned-by-ai
NASA's Perseverance Mars rover completes its 1st drive planned by AI | Space
pricing 69 176.8× 1596 ⚠️ RAG Fracture
https://www.space.com/space-exploration/launches-spacecraft/spacex-grounds-its-falcon-9-rocket-after-a-problem-with-its-upper-stage-will-the-crew-12-astronaut-mission-be-affected
SpaceX grounds its Falcon 9 rocket after a problem with its upper stage. Will the Crew-12 astronaut mission be affected? | Space
pricing 69 156.1× 1824 ⚠️ RAG Fracture
https://www.space.com/entertainment/its-insightful-its-informative-neil-degrasse-tyson-on-his-5-hour-backyard-audio-chat-with-william-shatner-interview
'It's insightful, it's informative.' Neil deGrasse Tyson on his 5-hour backyard audio chat with William Shatner (interview) | Space
pricing 69 153.2× 1883 ⚠️ RAG Fracture
https://www.space.com/entertainment/yes-bueno-the-new-kinder-bueno-super-bowl-lx-ad-is-sweet-sci-fi-goodness-video
'Yes Bueno!': The new Kinder Bueno Super Bowl LX ad is sweet sci-fi goodness (video) | Space
pricing 69 185.0× 1546 ⚠️ RAG Fracture
https://www.space.com/stargazing/march-full-moon-2025-when-where-and-how-to-see-the-worm-moon
March full moon 2025: When, where and how to see the Worm Moon | Space
pricing 69 109.8× 2569 ⚠️ RAG Fracture
https://www.space.com/stargazing/februarys-rare-planetary-alignment-is-coming-heres-what-to-expect-from-the-planet-parade
February's 'rare planetary alignment' is coming — here's what to expect from the planet parade | Space
pricing 69 137.7× 2154 ⚠️ RAG Fracture
https://www.space.com/stargazing/lunar-eclipses/how-to-use-the-moon-on-feb-4-to-plan-your-view-of-marchs-total-lunar-eclipse
How to use the moon on Feb. 4 to plan your view of March's total lunar eclipse | Space
pricing 69 149.1× 1912 ⚠️ RAG Fracture
https://www.space.com/stargazing/lunar-eclipses/a-blood-moon-is-coming-1-month-until-a-total-lunar-eclipse-takes-to-the-skies-over-north-america
A blood moon is coming — 1 month until a total lunar eclipse takes to the skies over North America | Space
pricing 69 188.9× 1413 ⚠️ RAG Fracture
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
/archive/ 125 61 1% 89.3× Bot Blocked
/space-exploration/ 106 69 0% 166.5× High JS Bloat
/astronomy/ 104 69 0% 161.7× High JS Bloat
/stargazing/ 74 69 0% 157.9× High JS Bloat
/entertainment/ 71 69 0% 147.7× High JS Bloat
/technology/ 10 69 0% 146.8× High JS Bloat
/news/ 4 69 0% 133.8× High JS Bloat
/science/ 3 69 0% 165.0× High JS Bloat
/about/ 1 69 0% 68.6× High JS Bloat
/topics/ 1 69 0% 197.8× High JS Bloat
/best-space-games/ 1 69 0% 98.4× High JS Bloat
🔗
Outbound External Citations
0 unique external domains cited across 1009 pages
videos.space.com ×1001
youtube.com ×1001
flipboard.com ×1001
futureplc.com ×1001
instagram.com ×1001
twitter.com ×1001
go.future-advertising.com ×1001
facebook.com ×1001
🔄 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/space.com

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

🔗 Similar developer Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
space.com (this site) 59 74 Next.js 62.6× 4
kika.ee 82 87 Next.js 4.3× 5 Compare →
neweracap.com 83 88 Next.js 2.5× 2 Compare →
deadwoodstudios.com 82 97 Next.js 9.2× 10 Compare →
workwear4all.nl 82 87 Express 3.7× 4 Compare →
graftonaestheticsspa.com 84 88 Cloudflare Pages 4.8× 4 Compare →
Compare All 5 Similar Sites →

📊 Semantic Share of Voice

How often would an AI cite space.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…

🎭

Bait & Switch Delta

F 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.

69
Homepage ACRI
47
Inner Avg ACRI
+22
ACRI Delta
40%
Homepage Ghost
60%
Inner Avg Ghost
100
Drift Score [?]
Worst Inner Pages
46 60% pricing https://space.com/features
56 60% pricing https://space.com/blog
56 60% pricing https://www.space.com/blog
🛡️

E-E-A-T Trust Signals

D 25/100

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
🔗

Citation Profile

26 DOMAINS

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

152
Total Links
26
Unique Domains
10.1
Avg/Page
17%
Diversity
go.future-advertising.com facebook.com instagram.com videos.space.com youtube.com google.com flipboard.com futureplc.com twitter.com pinterest.com
🏘️ Outbound Neighborhood Trust Avg Trust: 60.0

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

🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to space.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": "Space",
  "url": "https://space.com",
  "logo": "https://vanilla.futurecdn.net/space/1582365/apple-touch-icon.png",
  "sameAs": []
}
</script>
Reduce Token Bloat
Medium Impact ⏱ 1–2 hrs
Only 1% 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 Space?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Add your answer here — describe what Space does in 1-2 sentences."
      }
    },
    {
      "@type": "Question",
      "name": "How does Space work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Explain the key features and how users interact with Space."
      }
    }
  ]
}
</script>
📈

Projected Impact

ROI EST.

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

Current Score
74
Projected Score
88
Improvement
+14 pts
Add Organization schema +6 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.
Free Deep Audit → GSC Error Guide →