AI companies
CompanyTo train its modelsTo answer people and search
- OpenAIChatGPTTo train its modelsPartly
GPTBotline 147, some pathsTo answer people and searchPartlyOAI-SearchBotline 201, some pathsChatGPT-Userline 174, some paths - AnthropicClaudeTo train its modelsPartly
ClaudeBotline 255, some pathsanthropic-ailine 336, some pathsClaude-Weblet inTo answer people and searchPartlyClaude-SearchBotline 309, some pathsClaude-Userline 282, some paths - GoogleGeminiTo train its modelsPartly
Google-Extendedline 363, some pathsTo answer people and searchLet inGoogle-CloudVertexBot - PerplexityTo train its modelsNone namedTo answer people and searchPartly
PerplexityBotline 390, some pathsPerplexity-Userline 417, some paths - MetaMeta AITo train its modelsPartly
meta-externalagentlet inFacebookBotline 471, some pathsTo answer people and searchLet inmeta-externalfetchermeta-webindexer - AppleApple IntelligenceTo train its modelsPartly
Applebot-Extendedline 444, some pathsTo answer people and searchNone named - AmazonTo train its modelsPartly
Amazonbotline 579, some pathsTo answer people and searchLet inAmzn-SearchBotAmzn-User - Common Crawlopen data for trainingTo train its modelsPartly
CCBotline 228, some pathsTo answer people and searchNone named - ByteDanceTo train its modelsPartly
Bytespiderline 552, some pathsTikTokSpiderlet inTo answer people and searchNone named - MistralLe ChatTo train its modelsNone namedTo answer people and searchLet in
MistralAI-User
None of the 27 other AI crawlers we know is kept out.
What it tells AI crawlers
It gives no Content Signals and no “noai” tag.
Like 75% of the 1,305 popular sites whose robots.txt we’ve read since 29 Oct 2026, it keeps no AI training crawler out. Of the 1,611 popular sites we’ve checked since 29 Oct 2026, 11% have a page drawn by scripts, 3% send a Markdown copy, 10% have an llms.txt and 4% offer a file for AI agents. How many websites block AI crawlers?
We read the site once, as our named bot: its robots.txt, read as crawlers read it, its home page and the files AI tools ask sites for. What we couldn’t read says so. robots.txt asks and doesn’t enforce: a firewall can treat AI crawlers differently from us.