Can AI crawlers reach a site?
Enter a domain. See whether the crawlers behind ChatGPT, Perplexity, Claude, Gemini, and Copilot are allowed in, plus sitemap and robots.txt discoverability.
Reads the public robots.txt, sitemap, and homepage. Domain-level check, no data stored.
Access is the first gate.
If a crawler is blocked, that engine cannot cite a page no matter how good the content is. This checker reads the signals that decide whether crawlers get in.
Whether the retrieval crawlers behind ChatGPT (OAI-SearchBot, ChatGPT-User), Perplexity, Claude, Google AI, and Copilot are allowed to reach a site in robots.txt.
Whether GPTBot and Google-Extended are allowed. Blocking these limits model training, not retrieval, so it can be a deliberate choice. We flag it without penalizing the score.
Homepage reachability, whether robots.txt exists, whether a sitemap is declared and reachable, and whether the site publishes an llms.txt.
Crawler access, answered.
No, and any tool that claims to is guessing. There is no public API for ChatGPT or Bing index membership. This checker verifies something concrete and actionable instead: whether the crawlers that feed those engines are allowed to reach a site, which is a precondition for being cited.
OpenAI (OAI-SearchBot, ChatGPT-User, GPTBot), PerplexityBot, ClaudeBot, Googlebot and Google-Extended, and Bingbot. ChatGPT search and Copilot lean on the OpenAI and Bing crawlers respectively, and AI Overviews uses Googlebot.
It depends on the goal. GPTBot is used for model training, not for ChatGPT search retrieval. Blocking it keeps content out of training data while still allowing OAI-SearchBot to cite the site. The tool flags GPTBot's status as information, not a penalty.
If a crawler is blocked in robots.txt, that engine cannot fetch the pages, so it cannot cite them no matter how good the content is. Crawl access is the first gate. Everything else, structure, schema, authority, only matters once the crawler can get in.
See the real AI visibility.
Letting crawlers in makes a site eligible. Zumi shows what actually happens across every engine: where a brand is cited, where competitors win, and what to fix first.
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