bolt.host 42 D
🛡️ SEO 67 🤖 GEO 56 ⚡ Perf 62 🏗️ Arch 55

bolt.host — Global SEODiff Score 42/100

bolt.host
📊

bolt.host struggles with AI visibility, recording a critical ACRI of 15/100 — AI crawlers face significant hurdles extracting its content. Within the developer vertical, this places bolt.host below the industry average of 57 —, indicating room for competitive improvement. Server-side rendering keeps the ghost ratio near zero, giving AI systems direct access to all visible content. The bloated 22.6× token ratio highlights an urgent need to clean up non-content markup, scripts, and navigation clutter. The site includes 2 schema blocks, providing adequate structured data for basic entity recognition. Complete AI crawler restriction cuts this domain off from the growing AI search ecosystem entirely.

42
D — Global SEODiff Score
Comprehensive search visibility assessment
Below average — Architecture (55) needs urgent attention.
🎯 Top Fix: Allow GPTBot + ClaudeBot in robots.txt → lift the score cap
🔬 Automated SEODiff Assessment · Snapshot: Feb 25, 2026 · 📋 API
Does your site score higher than bolt.host?
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)67 × 0.25 = 16.8
🤖 AI Readiness / GEO (40% weight)56 × 0.40 = 22.4
⚡ Performance (20% weight)62 × 0.20 = 12.4
🏗️ Architecture & Trust (15% weight)55 × 0.15 = 8.2
Weighted sum = 16.8 + 22.4 + 12.4 + 8.2
⚠️ Fatal multiplier: All major AI bots blocked → ×0.5
Global SEODiff Score = 42 (D)
🚫
Gatekeeper Rule: Score cannot exceed 15. Both GPTBot and ClaudeBot are blocked in robots.txt. No major AI assistant can cite this site. Allow at least one major AI crawler to lift the cap. See Bot Access →
📊 ACRI Sub-Scores (AI Readiness Detail)
20
Bot Access
avg 92
97
Rendering
avg 93
47
Structure
avg 35
84
Schema
avg 10
50
Tech Stack
avg 64
🔀
Visibility Delta: Google vs AI
Google (Tranco)
Top 14%
Rank #140190
+49 pts
Gap
AI (ACRI)
Top 63%
Score 15/100

bolt.host 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 bolt.host ranks here

Tech stackCustom / Proprietary
Industrydeveloper
RenderingHybrid
Schema coverage2 blocks
Token bloat22.6×

Fastest improvements

  • Allow GPTBot in robots.txt so AI crawlers can access your pages (see Crawl Access).
  • Allow ClaudeBot (many assistants rely on it) — blocking it often correlates with “AI invisibility.”
  • 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

67/100 25 % of Global Score 🟢 High Confidence

📝 Title Tag

44 chars
Good length

Optimal range: 30–60 characters for SERP display.

📋 Meta Description

105 chars
Too short

Optimal range: 120–160 characters for snippet control.

🔤 Heading Hierarchy

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

🔍 Indexability

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

🌐 Social / OpenGraph

  • ✓ og:title — Bolt AI builder: Websites, apps & prototypes
  • ✓ og:description — Build and scale high-performing websites & apps using your words. Join millions and start building today.
  • ✓ 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

56/100 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 →
bolt.host
40
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)
Blocked
ClaudeBot (Anthropic)
Blocked
CCBot (Common Crawl)
Blocked
Google-Extended
Blocked
Googlebot
Allowed
💡GPTBot is blocked. To appear in ChatGPT citations, add Allow: / under User-agent: GPTBot in your robots.txt.
💡ClaudeBot is blocked. To be cited by Claude, allow ClaudeBot in robots.txt.

👻 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 47/100 — Fair
Structured Elements 25 elements (25 lists, 0 rows, 0 headers)
Total Words376
Raw Density6.7%

🏷️ Schema Health Docs

Organization Schema ✅ Present
Product / Service Schema ✅ Present
Total Schema Blocks2 block(s) — Basic (low value for AI)

Schema Coverage Map

3/7 schema types detected
✅ Organization
✅ Product/Service
❌ Breadcrumb
❌ FAQ
❌ Article
❌ WebSite
💡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

64
AI Extractability
Medium
Crawl Cost
Critical
Blocklist Risk
Extractability64/100 — AI models can partially extract answers from this page
Crawl CostMedium (40/100) — moderate for AI crawlers to process
Blocklist RiskCritical — 4 of 5 AI crawlers blocked

Token Bloat Research

4%
🗑️ 96%
Useful Content (2.4 KB)Bloat (52.4 KB)
Token Bloat Ratio22.6× — Heavy

Multimodal Readiness

Visual Context13% Optimized for Vision
Image Alt Coverage2 / 15 images have alt text

TDM Rights

TDM-Reservation HeaderNot set
X-Robots-Tag: noaiNot set
💡Your HTML is 54.8 KB, but only 2.4 KB is text. 4% useful / 96% bloat. AI crawlers have limited context windows (e.g. 128k tokens). This level of bloat (22.6×) risks context-window truncation by ChatGPT, Claude, and Gemini. Reduce inline scripts, CSS, hydration payloads, and tracking code.
💡Only 13% 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: 95.6% · SNR: 0.05 · Signal: 620 / Noise: 13406 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

AI-Readiness Score50/100
Servercloudflare
CDNcloudflare
HTTP Status200
Load Time1089 ms
Raw HTML Size54.8 KB
Visible Text Size2.4 KB

Performance & Speed

62/100 20 % of Global Score 🟢 High Confidence

⏱️ Time to First Byte

1089 ms
Slow — bots may time out or deprioritise

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

📦 Page Weight

490
DOM nodes
55 KB
HTML payload
Lean page — fast for bots and users

🗄️ Cache & CDN

  • ✗ Cache-Control header
  • ✓ 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

55/100 15 % of Global Score 🟢 High Confidence

🗺️ Sitemap & Robots

  • ✗ Sitemap declared in robots.txt
  • ✓ Googlebot allowed
  • ✗ GPTBot allowed
  • ✗ ClaudeBot allowed

🔗 Linking

8
internal links
23
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 40/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.

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

Homepage ACRI
40
Single-page score
+11
Subpages outperform homepage
Δ delta
Site-Wide ACRI
51
Avg across 10 pages · Range 51–51
Total Words
3290
Avg Bloat
33.9×
Ext. Citations
9
Page Type ACRI Token Bloat Words Status
https://bolt.host/pricing
Bolt AI builder: Websites, apps & prototypes
pricing 51 33.9× 329
https://bolt.host/about
Bolt AI builder: Websites, apps & prototypes
about 51 33.9× 329
https://bolt.host/features
Bolt AI builder: Websites, apps & prototypes
product 51 33.9× 329
https://bolt.host/products
Bolt AI builder: Websites, apps & prototypes
product 51 33.9× 329
https://bolt.host/docs
Bolt AI builder: Websites, apps & prototypes
docs 51 33.9× 329
https://bolt.host/blog
Bolt AI builder: Websites, apps & prototypes
blog 51 33.9× 329
https://bolt.host/case-studies
Bolt AI builder: Websites, apps & prototypes
social-proof 51 33.9× 329
https://bolt.host/contact
Bolt AI builder: Websites, apps & prototypes
support 51 33.9× 329
https://bolt.host/faq
Bolt AI builder: Websites, apps & prototypes
support 51 33.9× 329
https://bolt.host/integrations
Bolt AI builder: Websites, apps & prototypes
integrations 51 33.9× 329
🔗
Outbound External Citations
9 unique external domains cited across 10 pages
instagram.com ×10
youtube.com ×10
support.bolt.new ×10
x.com ×10
reddit.com ×10
stackblitz.com ×10
status.bolt.new ×10
linkedin.com ×10
🔄 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/bolt.host

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

🔗 Similar developer Sites

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

Domain ACRI AI Score Tech Stack Token Bloat Schema
bolt.host (this site) 40 15 Custom / Proprietary 22.6× 2
openshareweb.com 40 15 Custom / Proprietary 23.2× 1 Compare →
databento.com 38 67 Custom / Proprietary 24.0× 2 Compare →
cloudflare.tv 41 65 Custom / Proprietary 24.6× 2 Compare →
osloby.no 42 63 Custom / Proprietary 23.4× 1 Compare →
andela.com 40 65 Custom / Proprietary 22.8× 0 Compare →
Compare All 5 Similar Sites →
🩹

Remediation Patches

COPY-PASTE

Auto-generated code fixes tailored to bolt.host. 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": "Host",
  "url": "https://bolt.host",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https://bolt.host/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: /
Allow ClaudeBot in robots.txt
Medium Impact ⏱ 2 min
ClaudeBot is blocked — Claude cannot cite your content. Many AI assistants rely on it.
text
User-agent: ClaudeBot
Allow: /

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

Projected Impact

ROI EST.

If you apply the patches above, here's the estimated improvement for bolt.host:

Current Score
15
Projected Score
40
Improvement
+25 pts
Allow GPTBot +8 pts
Allow ClaudeBot +5 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).

Is this your company?

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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