What is Crawler Vision Score (#CVS)?

Crawler Vision Score (#CVS) is a proprietary metric (0-100) that evaluates how effectively search engine crawlers and AI systems can access and understand your website. It combines Technical SEO (35%), AIO Readiness (20%), Meta Relevancy (15%), AI Files (15%), and GEO/Local SEO (15%).

What is SPIDER analysis?

SPIDER is a JavaScript rendering service powered by Utility-Server that executes client-side JavaScript before analysis. It shows how search engines actually see your website after JavaScript renders, essential for React, Vue, Angular, and Next.js applications.

What is the difference between Standard and SPIDER analysis?

Standard analysis fetches raw HTML without JavaScript execution, ideal for static or server-rendered sites. SPIDER analysis renders JavaScript first, showing what search engines see for client-side applications. Use 'Analyze pre-rendered site' to verify existing pre-rendering services.

How does LLM Visibility Check work?

The LLM Visibility Check queries four major AI platforms (ChatGPT, Gemini, Claude, Grok) to determine if they mention or have knowledge about your domain, helping you understand your AI discoverability and optimize your presence in AI-generated responses.

Is Crawler Vision free to use?

Yes, Crawler Vision is completely free to use with no registration required. You get 20 credits that restore automatically over time. Each analysis costs 1 credit for standard, 2 credits for SPIDER, and 5 credits for LLM visibility checks.

What AI models does Crawler Vision check for visibility?

Crawler Vision checks your website's visibility across ChatGPT (OpenAI), Google Gemini, Claude (Anthropic), and Grok (xAI). These are the leading AI platforms that power modern search and discovery.

Make Your Website Visible to Search & AI Engines

Name: Crawler Vision Platform
Address: Online Service, San Francisco, CA, 94102, US
Telephone: +1-800-SEO-TOOL
Price range: Free
Rating: 4.8

Get your Crawler Vision Score and discover technical issues blocking indexing, ranking, and AI discovery. Analyze SEO performance, check visibility on ChatGPT, Gemini, Perplexity, and Grok.

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Free analysis · No signup required · Works for JavaScript sites

What is the Crawler Vision Score?

The Crawler Vision Score (CVS) is a composite metric from 0 to 100 that measures how discoverable your website is for both traditional search engines and AI platforms. It combines Technical SEO (35%), AIO Readiness (20%), Meta Relevancy (15%), AI Files (15%), and GEO/Local SEO (15%).

Why are websites invisible to AI and search engines?

Websites become invisible when crawlers cannot access their content. JavaScript rendering, missing structured data, and blocked AI bots are the most common causes of poor discoverability.

JavaScript content not indexed by search engines
Single Page Applications (SPA) invisible to crawlers
Dynamic content inaccessible to AI systems like ChatGPT and Gemini
Crawl budget wasted on broken internal links
Missing structured data prevents rich results

What does Crawler Vision analyze?

Crawler Vision performs a comprehensive analysis across six dimensions: Technical SEO, AIO readiness, Meta relevancy, AI files, GEO/Local SEO, and optional PageSpeed Insights.

Crawl Analysis — Discover how bots traverse your site and find crawl errors
Rendering Analysis — Detect client-side rendering issues with SPIDER engine
AI Readiness — Evaluate structured data, LLM accessibility, and AIO signals
LLM Visibility Check — See if ChatGPT, Gemini, Perplexity, and Grok mention your brand
GEO & Local SEO — Assess local business schema, hreflang, and map presence
Shareable Reports — Export as Report Context (for LLMs) or Markdown (for humans)

How does Crawler Vision work?

Crawler Vision fetches your page, parses its HTML (or renders JavaScript with SPIDER), evaluates over 50 signals, and produces a prioritized report with actionable recommendations.

Enter the URL you want to analyze
Crawler Vision crawls and renders the page
Generates your Crawler Vision Score with detailed breakdown
Provides prioritized recommendations to fix issues

How is the Crawler Vision Score calculated?

The CVS is a weighted average of five component scores. Each component evaluates specific signals and calculates points earned divided by maximum possible points, multiplied by 100.

Technical SEO (35%) — Meta tags, headings, images, links, structured data
AIO Readiness (20%) — FAQ/HowTo schema, semantic HTML, question headings
Meta Relevancy (15%) — Title and description length optimization
AI Files (15%) — robots.txt, sitemap.xml, llms.txt, ai.txt presence
GEO/Local SEO (15%) — Schema markup, NAP consistency, sameAs linking

Read the full scoring methodology →

Frequently Asked Questions

What is Crawler Vision Score?: A composite score (0-100) that evaluates how well search engines and AI systems can access your website. Higher scores mean better discoverability.
How does SPIDER rendering work?: SPIDER executes JavaScript before analysis, showing how search engines actually see your site after rendering. Essential for React, Vue, and Angular applications.
Is Crawler Vision free to use?: Yes. You get 20 credits that restore automatically. Each standard analysis costs 1 credit. Premium plans offer SPIDER, LLM checks, and more.
What AI models does Crawler Vision check?: Crawler Vision checks your visibility on ChatGPT, Google Gemini, Perplexity AI, and Grok — the leading AI platforms powering modern search.

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