AI bot access: who to allow, who to block
GEO clusterJul 14, 2026·4 min read

AI bot access: who to allow, who to block

GPTBot, PerplexityBot, Google-Extended, Claude, and more — a per-bot decision matrix.

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TL;DR

The default answer for almost every AI bot is allow. Blocking is a defensive move that mostly hurts your own visibility while competitors stay cited.

Key facts
  • GPTBot powers ChatGPT retrieval.
  • PerplexityBot cites sources with clicks.
  • Google-Extended controls Gemini training separately from Googlebot.
  • ClaudeBot and CCBot feed Anthropic and downstream models.

Per-bot decisions

  • GPTBot — allow if you want ChatGPT to cite you. Default answer: yes.
  • PerplexityBot — allow. Perplexity cites sources with clicks.
  • Google-Extended — controls Gemini training. Separate from Googlebot.
  • ClaudeBot — allow if you want Claude to reference you.
  • CCBot — Common Crawl. Powers many downstream models.
Frequently asked questions
Will blocking bots stop scraping?
No — determined scrapers ignore robots.txt. Blocking mostly stops the well-behaved crawlers that would have cited you.