{
  "entity_a": {
    "slug": "claude-searchbot",
    "name": "Claude-SearchBot"
  },
  "entity_b": {
    "slug": "googlebot",
    "name": "Googlebot"
  },
  "fields_documented": 10,
  "claims": 19,
  "last_verified": "2026-09-15",
  "fields": [
    {
      "field": "cites_sources",
      "value_a": "not_documented",
      "value_b": "yes",
      "claim_id_a": 34,
      "claim_id_b": 69,
      "same": false
    },
    {
      "field": "honours_crawl_delay",
      "value_a": "yes",
      "value_b": "no",
      "claim_id_a": 29,
      "claim_id_b": 64,
      "same": false
    },
    {
      "field": "observed_verified_request_ratio_census",
      "value_a": null,
      "value_b": "0.991",
      "claim_id_a": null,
      "claim_id_b": 149,
      "same": false
    },
    {
      "field": "publishes_ip_list",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 30,
      "claim_id_b": 65,
      "same": true
    },
    {
      "field": "purpose_documented",
      "value_a": "search",
      "value_b": "search",
      "claim_id_a": 32,
      "claim_id_b": 67,
      "same": true
    },
    {
      "field": "reads_llms_txt",
      "value_a": "not_documented",
      "value_b": "no",
      "claim_id_a": 35,
      "claim_id_b": 132,
      "same": false
    },
    {
      "field": "respects_robots_txt",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 28,
      "claim_id_b": 63,
      "same": true
    },
    {
      "field": "separate_search_and_training_tokens",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 33,
      "claim_id_b": 68,
      "same": true
    },
    {
      "field": "user_agent_string_full",
      "value_a": "not_documented",
      "value_b": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
      "claim_id_a": 36,
      "claim_id_b": 70,
      "same": false
    },
    {
      "field": "verifiable_by_rdns",
      "value_a": "not_documented",
      "value_b": "yes",
      "claim_id_a": 31,
      "claim_id_b": 66,
      "same": false
    }
  ],
  "differences": [
    {
      "field": "cites_sources",
      "statement_a": "Anthropic does not publish whether Claude search responses cite pages crawled by Claude-SearchBot.",
      "statement_b": "Google AI Overviews and AI Mode return AI generated responses with links to supporting websites.",
      "claim_id_a": 34,
      "claim_id_b": 69
    },
    {
      "field": "honours_crawl_delay",
      "statement_a": "Claude-SearchBot respects the Crawl-delay directive in robots.txt when crawling domains.",
      "statement_b": "Google does not support the robots.txt Crawl-delay directive for Googlebot.",
      "claim_id_a": 29,
      "claim_id_b": 64
    },
    {
      "field": "observed_verified_request_ratio_census",
      "statement_a": null,
      "statement_b": "Googlebot requests to Rattlesnakes By Mail matched Google's published IP ranges on 108 of 109 requests between 2026-09-13T20:00Z and 2026-09-15T09:00Z. Googlebot's first request to Rattlesnakes By Mail in that window was /robots.txt at 2026-09-14T11:53:00Z.",
      "claim_id_a": null,
      "claim_id_b": 149
    },
    {
      "field": "reads_llms_txt",
      "statement_a": "Anthropic does not publish whether Claude-SearchBot reads llms.txt files.",
      "statement_b": "Google Search does not use llms.txt files.",
      "claim_id_a": 35,
      "claim_id_b": 132
    },
    {
      "field": "user_agent_string_full",
      "statement_a": "Anthropic does not publish a full user agent string for Claude-SearchBot.",
      "statement_b": "Googlebot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +http://www.google.com/bot.html).",
      "claim_id_a": 36,
      "claim_id_b": 70
    },
    {
      "field": "verifiable_by_rdns",
      "statement_a": "Anthropic does not publish a reverse-DNS verification method for Claude-SearchBot.",
      "statement_b": "Googlebot requests are verifiable by reverse DNS lookup resolving to googlebot.com, google.com, or googleusercontent.com.",
      "claim_id_a": 31,
      "claim_id_b": 66
    }
  ],
  "sources": [
    "https://claude.com/crawling/bots.json",
    "https://developers.google.com/crawling/docs/crawlers-fetchers/verifying-googlebot",
    "https://developers.google.com/search/blog/2019/07/a-note-on-unsupported-rules-in-robotstxt",
    "https://developers.google.com/search/docs/appearance/ai-features",
    "https://developers.google.com/search/docs/crawling-indexing/google-common-crawlers",
    "https://developers.google.com/search/docs/fundamentals/ai-optimization-guide",
    "https://developers.google.com/static/crawling/ipranges/common-crawlers.json",
    "https://rattlesnakesbymail.com/observed/googlebot",
    "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-content-from-the-web-and-how-can-site-owners-block-the-crawler"
  ]
}