{
  "dataset": "crawlers",
  "record": {
    "id": "claudebot",
    "name": "ClaudeBot",
    "operator": "Anthropic",
    "purpose": "training",
    "ua_substring": "ClaudeBot",
    "robots_token": "ClaudeBot",
    "respects_robots": true,
    "verify": "reverse DNS (Anthropic does not publish an IP-range file; confirm the PTR resolves to an Anthropic-controlled host)",
    "notes": "Crawls content used to train Claude. Honors robots.txt and crawl-delay.",
    "canonical_name": "ClaudeBot",
    "user_agent_token": "ClaudeBot",
    "ua_full": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler",
      "note": "token confirmed in Anthropic support doc; exact full UA string with version/URL suffix not quoted in the article"
    },
    "bot_type": "training",
    "bot_type_extension": null,
    "opt_out_mechanism": "robots.txt disallow (User-agent: ClaudeBot)",
    "published_ip_range_url": "https://claude.com/crawling/bots.json",
    "asn": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://claude.com/crawling/bots.json"
    },
    "reverse_dns_suffix": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler",
      "note": "Anthropic documents an IP allowlist file as the authoritative check; a specific PTR suffix is not published in the support article"
    },
    "supports_web_bot_auth": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler"
    },
    "signature_agent_domain": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler"
    },
    "jwks_url": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler"
    },
    "verification_methods": [
      "published-IP-range",
      "reverse-DNS"
    ],
    "crawl_traffic_share": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://radar.cloudflare.com/bots",
      "note": "ClaudeBot not among the four Cloudflare Radar May 2026 figures supplied in research (GPTBot/Bytespider/Applebot/Claude-SearchBot)"
    },
    "targeted_content_type": "HTML, text",
    "documentation_url": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler",
    "first_seen_date": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler"
    },
    "last_verified_date": "2026-06-15",
    "block_vs_allow_recommendation": "conditional — training crawler; allow if you want your content represented in Claude, block via robots.txt to opt out of training. No direct referral traffic.",
    "citation_referral_value": "low (training; does not itself cite or refer)",
    "cloudflare_verified_category": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://radar.cloudflare.com/bots/directory/claudebot"
    },
    "status": "active",
    "triples": [
      [
        "ClaudeBot",
        "operated_by",
        "Anthropic"
      ],
      [
        "ClaudeBot",
        "has_bot_type",
        "training"
      ],
      [
        "ClaudeBot",
        "verified_via",
        "published-IP-range"
      ],
      [
        "ClaudeBot",
        "verified_via",
        "reverse-DNS"
      ]
    ],
    "attribute_sources": [
      {
        "claims": [
          "user_agent_token",
          "robots_token",
          "published_ip_range_url",
          "documentation_url",
          "respects_robots"
        ],
        "source": "https://support.claude.com/en/articles/8896518-does-anthropic-crawl-data-from-the-web-and-how-can-site-owners-block-the-crawler",
        "last_verified": "2026-06-15"
      }
    ]
  }
}