Free AI Crawl Simulator - No Account Needed
Free GPTBot & ClaudeBot Crawl Test - See What AI Bots See
Simulate how OpenAI's GPTBot and Anthropic's ClaudeBot crawl and render your pages. Detect JavaScript execution failures, CDN blocks, and missing schema - free, no account needed.
What you receive
A full AI crawlability audit in under 15 seconds
Over 70% of B2B websites have invisible technical barriers that prevent AI crawlers from reading their most important pages. The problem is invisible in Chrome because browsers execute JavaScript that AI bots often skip.
robots.txt only tells you what's allowed on paper.We test what actually happens by sending real requests with each bot's exact user-agent to catch server-level and CDN blocks (like Cloudflare's “Block AI Bots” setting) that robots.txt alone won't reveal.
This simulator focuses on GPTBot and ClaudeBot: the two crawlers most likely to hit JavaScript rendering issues. For a broader check across all 10 AI crawlers, see the AI Crawler Access Checker →
Most common crawl issues we detect
If your pricing, product descriptions, or navigation are client-rendered by JavaScript, AI crawlers see a blank page or empty shell.
Cloudflare's 'Block AI Bots' toggle or custom firewalls often return 403 Forbidden even when your robots.txt technically allows the crawler.
Accidental wildcard Disallow rules or outdated crawler blocks prevent models from training on your core brand documentation.
Without structured JSON-LD and a spec-compliant llms.txt, AI engines must guess your brand context from fragmented HTML.
Free · No account required
AI Crawl Simulator
How it works
Real bot emulation in three steps
Enter your page URL
Paste any page URL. No account needed - the simulation runs immediately with real bot headers.
We emulate GPTBot & ClaudeBot
Our simulator replicates the exact user-agents, network headers, and DOM rendering behavior of OpenAI and Anthropic bots.
Receive your crawl report
Within 10–15 seconds, see what AI crawlers actually read, CDN headers returned, and prioritized fix steps.
Platform Capabilities
Turn technical crawlability into AI market leadership
AI Readiness Audit
Full 7-dimension diagnostic of crawler permissions, schema, and content.
Citation Intelligence
Discover which URLs AI engines trust and cite when buyers research your space.
Brand Monitor
Track weekly AI Share of Voice and prompt sentiment across 6 models.
Action Center
Ranked fix queue ordered by estimated impact on your AI recommendations.
GPTBot & ClaudeBot Crawl Test - FAQs
Everything you need to know about AI crawlability, bot blocking, and JavaScript rendering
GPTBot is OpenAI's web crawler that indexes the internet to train and ground ChatGPT's knowledge. If GPTBot is blocked, ChatGPT has limited or no first-party data about your brand, products, or documentation when answering buyer queries.