TidyToolsAI Crawler Index · data as of · updated daily

AI Crawler Index · category

Do AI websites block AI crawlers?

As of 2026-10-01, 11.1% of the 9 AI websites whose robots.txt we could read block GPTBot, 0% block ClaudeBot and 11.1% block PerplexityBot (all sites: 17%, 16.3%, 12.7%). 1 of 9 publish an llms.txt file.

Block rate by crawler: AI vs all sites

CrawlerOperatorAIAll sites
Google-ExtendedGoogle22.2%14%
GPTBotOpenAI11.1%17%
OAI-SearchBotOpenAI11.1%6.7%
ChatGPT-UserOpenAI11.1%9.6%
PerplexityBotPerplexity11.1%12.7%
CCBotCommon Crawl11.1%19.5%
BytespiderByteDance11.1%17.7%
OAI-AdsBotOpenAI0%4.3%
ClaudeBotAnthropic0%16.3%
Claude-SearchBotAnthropic0%8.1%
Claude-UserAnthropic0%8.3%
Perplexity-UserPerplexity0%8.9%
Google-CloudVertexBotGoogle0%7.2%
Google-GeminiNotebookGoogle0%4.3%
Google-AgentGoogle0%4.5%
ApplebotApple0%2.6%
Applebot-ExtendedApple0%14.3%
Meta-ExternalAgentMeta0%14.4%
meta-webindexerMeta0%6.3%
meta-externalfetcherMeta0%8.7%
meta-externaladsMeta0%3.8%
AmazonbotAmazon0%13.1%
Amzn-SearchBotAmazon0%5.9%
Amzn-UserAmazon0%5.5%
DuckAssistBotDuckDuckGo0%8.1%
MistralAI-UserMistral0%8.4%
MistralAI-IndexMistral0%4.7%
MistralAI-TrainingMistral0%4.7%
cohere-aiCohere0%13.7%

All 9 AI sites in the index

✕ blocked · ◐ partially blocked (some paths) · ✓ allowed · ? robots.txt unreadable. "#" is the position in our popularity-ordered sample.

#SitePolicyGPTBotOAI-SearchChatGPT-UserClaudeBotClaude-SearchPerplexityGoogle-Ext.CCBotllms.txt
35chatgpt.comBlocks some AI searchallowedallowedallowedallowedallowedblockedblockedblocked–
37openai.comOpenallowedallowedallowedallowedallowedallowedallowedallowed–
183claude.aiBlocks some AI searchblockedblockedblockedallowedallowedallowedblockedallowed–
265anthropic.comOpenallowedallowedallowedallowedallowedallowedallowedallowed–
298perplexity.aiOpenallowedallowedallowedallowedallowedallowedallowedallowed–
359cursor.shOpenallowedallowedallowedallowedallowedallowedallowedallowedyes
367deepl.comOpenallowedallowedallowedallowedallowedallowedallowedallowed–
500huggingface.coOpenallowedallowedallowedallowedallowedallowedallowedallowed–
577deepseek.comOpenallowedallowedallowedallowedallowedallowedallowedallowed–

FAQ

Do AI websites block AI crawlers?
As of 2026-10-01, 11.1% of the 9 AI websites whose robots.txt we could read block GPTBot, 0% block ClaudeBot and 11.1% block PerplexityBot (all sites: 17%, 16.3%, 12.7%). 1 of 9 publish an llms.txt file.
Which AI websites block GPTBot?
claude.ai.

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