Free tool

AI crawler simulator

Test how 12 major AI crawlers see your site. Spot 403s, redirects, and silent blocks before they cost you visibility in ChatGPT, Perplexity, Claude, Google AI Overviews and more — instantly, no account required.

Test your site

Test the homepage or any specific URL — full path supported.

Want continuous monitoring of your AI search visibility — across ChatGPT, Perplexity, Gemini and Claude? See AI Visibility →

How the AI crawler test works

  1. 01

    Paste any URL — your homepage, a key landing page, or a single blog post.

  2. 02

    We send a real HTTP request to your server using each crawler's exact User-Agent string.

  3. 03

    You see status codes, response times, redirects, and a verdict per bot — in seconds.

  4. 04

    We also flag robots.txt-only directives like Applebot-Extended and Google-Extended.

12 AI crawlers tested
Real HTTP requests
Live response times
No account needed

Why AI crawler access matters in 2026

If your origin server, CDN, or WAF blocks an AI crawler, you disappear from that AI's answers. Many sites block AI bots without realising it — Cloudflare's "Block AI Bots" toggle, default firewall rules, and aggressive bot-management settings all silently 403 the crawlers behind ChatGPT, Perplexity, and Google AI Overviews.

Live retrieval

ChatGPT-User, PerplexityBot and Google-Extended fetch your pages at answer-time. A 403 means you're invisible right now — not eventually.

Training data

GPTBot, ClaudeBot and Bytespider feed model training. Block them and your brand voice never enters the model — competitors' does.

Robots.txt-only opt-outs

Applebot-Extended and Google-Extended never send HTTP requests — they only respect robots.txt rules. We check those too.

Track your AI search visibility — every day

Crawler access is step one. Step two: see exactly what ChatGPT, Perplexity, Gemini and Claude actually say about your brand — and how your visibility compares to competitors.

Try AI Visibility

14-day free trial · No credit card required · 100 keywords and 20 credits included

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