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Nutter Tools

A free toolbox that runs in your browser. A tool for every job.

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  1. Home
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  3. AI robots policy
Your files stay on your device

AI robots policy

Per-bot allow and block rules for AI crawlers, merged with your robots.txt, with RFC 9309 path checks.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

robots.txt is a cooperative signal, not a wall: well-behaved crawlers honor it and anything else can ignore it. Blocking a training crawler does not recall data already collected, and Google-Extended does not keep pages out of AI Overviews. Existing files up to 256K are merged in place.

Policy

GPTBotModel training
OAI-SearchBotSearch
ChatGPT-UserUser-triggered
Google-ExtendedModel training
ClaudeBotModel training
AmazonbotModel training
Applebot-ExtendedModel training
CCBotOpen dataset
Meta-ExternalAgentModel training
PerplexityBotSearch
Optional. Groups that name a catalogue bot are replaced.
Up to 100, checked under RFC 9309 matching
Presets
Output

Everything runs in this tab. Every bot always has a policy: a fresh page starts with all ten AI bots blocked, and a preset re-sets the whole set at once.

More web & auth tools

  • robots.txt tester
  • CSP evaluator & builder
  • HTTP status reference
  • HTTP header parser
All web & auth tools

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