See what ChatGPT, Claude, Perplexity and Google actually get from your site
Stage
Not given
Startup
Founded
Not given
2026
Based in
ES
US
Pricing model
Free
Freemium
Pricing
Not given
Free scans with no account. One site: fix service $100 once with 30 days included, then Watch at $29 per month for up to 3 sites. Multiple sites: Developer API at $99 per month for 2,000 scans, Growth at $499 per month for 20,000 scans, or Agency at $249 per month for 40 domains. Add-ons: Evidence $
Key features
Check HTML rendering without JavaScript execution
Test robots.txt for ChatGPT, Claude, Perplexity, Gemini, Copilot and other AI assistants
Detect Cloudflare and other protection systems
Analyze title, description, language, canonical address and headings
Review structured data and FAQ markup
Check llms.txt and sitemap
Extract contact information from page text
Identify the site's technology platform
Open source MIT licensed engine
Free A–F audit with no signup required
Tests 13 crawler identities including GPTBot, ClaudeBot, PerplexityBot, and Googlebot
Monitors sites twice daily with regression alerts
Signed, offline-verifiable answers using Ed25519 keys
Checks machine files: robots.txt, llms.txt, agents.md, and structured data
Implementation service to fix crawler access issues for $100
Published rulebook with 106 publicly accessible rules
API for agencies and tools measuring multiple sites
Browser extension showing how crawlers see your homepage
Blockchain-anchored daily seal of measurements via Bitcoin
What makes it different
Tests how multiple AI assistants read your site simultaneously
Provides tailored recommendations based on your site's technology
Fully free with no login required
Open source engine available for command line use
Signed, offline-verifiable results anyone can check without trusting the company
Tests what AI models actually receive from your site, not just SEO rankings
Transparent, published rules that never change based on payment tier
Built for the agentic web as a verification layer for agents to act autonomously
Readable
CrawlCheck