CrawlCheck zeigt, ob KI-Crawler eine Website überhaupt erfassen

ChatGPT, Claude, Gemini and Perplexity are quietly becoming a second traffic source for many websites. But before any of them can cite you, their crawlers — GPTBot, ClaudeBot, CCBot, Google-Extended, PerplexityBot, Bytespider — need to actually fetch your pages.

I built CrawlCheck to answer one question in under 30 seconds: can AI crawlers see your site, or are you accidentally blocking them? It is free and needs no signup.

While testing the tool on real sites, three failure modes came up again and again:

We documented 55 of the most common AI and search crawlers — what each one does, which pages it hits, and how to allow or block it. For example: GPTBot, ClaudeBot and CCBot.

Try the audit yourself: https://crawlcheck.dev — paste a URL and get the full report in seconds.

Feedback is welcome — which other checks would be useful to you?