Free AI Crawlability Checker

Most sites optimize for Googlebot and forget that ChatGPT, Perplexity, Claude, and Google's AI Overviews use different crawlers. If your robots.txt blocks GPTBot, ChatGPT literally cannot read your content. If PerplexityBot is blocked, you will never appear in Perplexity citations. Many site owners block these AI bots intentionally (training-data concerns) and many block them accidentally (broad Disallow rules that catch more than intended).

Our checker fetches your URL plus your robots.txt and leads with the result that actually matters: a 4-bot matrix covering GPTBot (OpenAI / ChatGPT), PerplexityBot (Perplexity), ClaudeBot (Anthropic / Claude), and Google-Extended (Google's AI Overviews and Gemini training). When a bot is blocked, its tile shows the exact Disallow line from your robots.txt and a one-line fix you can copy-paste straight into your config. When all four are allowed, you get a green celebration card so you can move on. Below the matrix, the tool runs a secondary technical crawlability pass covering HTML cleanliness (content-to-code ratio), heading hierarchy, list and table usage, and average paragraph length, because even when bots can reach your page, messy markup makes it hard to parse.

For SEOs and Site Owners

• Catch accidental AI bot blocks in 5 seconds (most common: a blanket Disallow rule that catches GPTBot)
• See which AI surfaces will and will not surface your content
• Identify the top technical fixes that improve how AI parsers extract your content

For Agencies

• Run this on every new client URL during onboarding. The bot-block check alone has caught critical misconfigurations in real audits.
• Track AI crawlability as a separate metric alongside traditional Googlebot crawlability

Why Use This Tool

• Per-bot blocking-rule matrix as the hero: Each blocked bot shows the exact Disallow line to remove, not just a red/green chip. Copy-paste the rule out of your robots.txt and you're fixed.
• Four bots, all real: We check GPTBot, PerplexityBot, ClaudeBot, and Google-Extended (the four AI crawlers that actually exist as of 2026). Not made-up user-agents.
• Free, instant, no signup: Paste URL, solve captcha, get answer.