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AI Crawlers Guide: Who to Allow, Who to Block

Complete guide to AI crawlers in 2026 — GPTBot, ClaudeBot, Google-Extended. How to configure robots.txt for AI bots.

ai-crawlers
robots.txt
seo
· kaktak.net

AI Crawlers in 2026

The AI crawler landscape has changed significantly. Today, more than 15 different bots regularly scan websites for model training and inference.

Main AI Crawlers

BotCompanyPurpose
GPTBotOpenAITraining + inference
ClaudeBotAnthropicTraining + inference
Google-ExtendedGoogleTraining Gemini
PerplexityBotPerplexitySearch index

Recommendations

For documentation sites, allowing all AI crawlers is recommended — it increases your content visibility in AI responses. The llms.txt file additionally helps bots find structured information.