Can GPTBot, ClaudeBot and PerplexityBot reach a site? Real fetch per crawler, firewall/CDN blocks.
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First seen 6 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| check_ai_crawler_access | Checks whether AI crawlers (GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, PerplexityBot, Google-Extended and others) can actually reach a website. Goes beyond robots.txt: fetches the site as each crawler and detects firewall/CDN blocks (Cloudflare, Akamai, Imperva), challenge pages, noindex and llms.txt. Returns a 0-100 AI Access Score, a per-crawler verdict and the top issues with fixes. Takes 15-60 seconds. | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | AI Crawler Access Check | - | 6 Oct 2026 |