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Quick Answer: FAII tracks 6+ AI crawler systems including OpenAI’s GPTBot, Anthropic’s ClaudeBot, PerplexityBot, and Google’s AI crawlers. Each has different crawling patterns and purposes.

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What You’ll Learn

  • Which AI bots FAII identifies
  • How each bot behaves and what it’s looking for
  • How to interpret visits from different bots
  • How to ensure your site is accessible to the right bots

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AI Crawlers Overview

BotOwnerPurposeCrawl Frequency
GPTBotOpenAITraining data & web browsingDaily-Weekly
ChatGPT-UserOpenAIReal-time web access in chatsOn-demand
ClaudeBotAnthropicTraining data collectionWeekly-Monthly
PerplexityBotPerplexityReal-time search answersFrequent
Google-ExtendedGoogleGemini AI trainingDaily
GooglebotGoogleSearch index + AI OverviewsVery frequent

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Detailed Bot Profiles

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GPTBot (OpenAI)

PropertyDetails
User-AgentMozilla/5.0 AppleWebKit/537.36 (compatible; GPTBot/1.0)
PurposeCrawls web pages for ChatGPT’s training and knowledge
BehaviorSystematic crawling, respects robots.txt
SignificanceVisits suggest your content may appear in ChatGPT responses
What GPTBot visits mean: OpenAI is actively reading your content. Pages visited by GPTBot are candidates for inclusion in ChatGPT’s knowledge base.

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ChatGPT-User (OpenAI)

PropertyDetails
User-AgentMozilla/5.0 AppleWebKit/537.36 (compatible; ChatGPT-User/1.0)
PurposeReal-time web access during user conversations
BehaviorOn-demand visits triggered by user queries
SignificanceSomeone asked ChatGPT a question that led to your page
What ChatGPT-User visits mean: A real user asked ChatGPT something, and ChatGPT browsed to your page for the answer. This is the strongest signal - your content is actively being used in responses.

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ClaudeBot (Anthropic)

PropertyDetails
User-AgentClaudeBot/1.0
PurposeWeb content collection for Claude’s knowledge
BehaviorPeriodic crawling, less frequent than GPTBot
SignificanceYour content is being read by Anthropic’s systems
What ClaudeBot visits mean: Anthropic is indexing your content for Claude’s knowledge. Pages visited are more likely to be referenced in Claude’s responses.

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PerplexityBot (Perplexity)

PropertyDetails
User-AgentPerplexityBot
PurposeReal-time search and citation
BehaviorVery frequent, search-driven crawling
SignificanceYour content is being used as a source in Perplexity answers
What PerplexityBot visits mean: Perplexity actively cites sources in its answers. Visits mean your pages are being considered as citation sources - the most direct path to appearing in Perplexity responses.

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Google-Extended (Google)

PropertyDetails
User-AgentGoogle-Extended
PurposeAI/ML training (Gemini, Bard successors)
BehaviorFollows Googlebot patterns
SignificanceYour content may inform Google’s AI products
What Google-Extended visits mean: Google is reading your content specifically for AI training purposes (separate from search indexing). This content may influence Gemini’s responses.

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Googlebot (Google)

PropertyDetails
User-AgentGooglebot/2.1
PurposeSearch indexing + AI Overview sources
BehaviorVery frequent, comprehensive
SignificanceRequired for both organic rankings and AI Overview citations
What Googlebot visits mean: Standard search indexing, but also feeds into AI Overview source selection. Pages indexed by Googlebot are candidates for AI Overview citations.

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Interpreting Bot Activity

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High-value patterns

PatternWhat It Suggests
Multiple bots visiting same pagePage is broadly discoverable and relevant
ChatGPT-User visitsReal users are being directed to your content
PerplexityBot frequent visitsYour content is actively cited in answers
Increasing visit frequencyGrowing authority in the AI ecosystem

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Concerning patterns

PatternWhat It Suggests
No visits from any botSite may be blocked or undiscoverable
Visits stopped suddenlyCheck robots.txt for accidental blocks
Only Googlebot, no AI botsAI-specific bots may be blocked
404 responses to botsBroken pages need fixing

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Managing Bot Access

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robots.txt configuration

Your robots.txt file controls which bots can access your site: 
# Allow all AI bots (recommended for AI visibility)
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Google-Extended
Allow: /
Blocking AI bots in robots.txt means they cannot read your content, which means they cannot recommend your brand. Only block bots if you have specific content licensing or privacy concerns.

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Selective access

If you want AI bots to read some pages but not others: 
User-agent: GPTBot
Allow: /blog/
Allow: /services/
Disallow: /internal/
Disallow: /drafts/

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New Bots

FAII continuously updates its bot detection database as new AI crawlers emerge. When a new AI platform launches a crawler, FAII adds detection automatically through plugin updates. Currently monitoring for upcoming crawlers from:
  • Mistral AI
  • Meta AI
  • Apple (Siri/Apple Intelligence)

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FAQ

Bot visits are a prerequisite, not a guarantee. The bot reading your content doesn’t automatically mean the AI will recommend you. Your content also needs to be relevant, authoritative, and well-structured for the topics users ask about.
Publish fresh, valuable content regularly. Submit your sitemap to search engines. Build quality backlinks. AI bots tend to follow links from authoritative sites and prioritize frequently-updated content.
AI bot visits are typically lightweight (they mostly read HTML content) and infrequent enough to have negligible bandwidth impact. Most sites see fewer than 1,000 bot visits per month.
FAII correlates bot visits with subsequent Chat Intelligence data. If a bot visits your page and you later get mentioned for that topic, the correlation appears in your analytics.

How Bot Tracking Works

Technical detection overview

Most Visited Pages

Which pages bots visit most