{
  "dataset": "crawlers",
  "record": {
    "id": "chatgpt-atlas",
    "name": "ChatGPT Atlas (agent mode)",
    "operator": "OpenAI",
    "purpose": "agentic-browsing",
    "ua_substring": "",
    "robots_token": "(none — agentic browser; no published robots.txt token)",
    "respects_robots": false,
    "verify": "no stable user-agent and (per OpenAI enterprise docs) no IP allowlist; an agentic browser is identifiable only by IP/signature/behavior, not by a UA token. Treat as user-driven browser traffic.",
    "notes": "OpenAI's ChatGPT Atlas browser (launched 2025-10-21) embeds ChatGPT into web navigation; its 'agent mode' takes actions on the user's behalf inside the browser. As a local Chromium-based browser it presents like ordinary browser traffic with no stable AI user-agent token — included here per the agentic-browser taxonomy, verifiable by IP/signature only.",
    "canonical_name": "ChatGPT Atlas",
    "user_agent_token": {
      "value": null,
      "verify_status": "no-stable-ua",
      "note": "no stable AI user-agent token; agentic browser"
    },
    "ua_full": {
      "value": null,
      "verify_status": "no-stable-ua",
      "source_hint": "https://openai.com/index/introducing-chatgpt-atlas/",
      "note": "presents as a Chromium-based browser UA; no distinctive AI token"
    },
    "bot_type": "agentic-browser",
    "bot_type_extension": null,
    "opt_out_mechanism": {
      "value": null,
      "verify_status": "not-applicable",
      "note": "no robots.txt token to target; an agentic browser acting in the user's session is not controlled by robots.txt. Use edge/bot-management controls if needed."
    },
    "published_ip_range_url": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise",
      "note": "OpenAI's enterprise docs note 'No IP allowlist' for Atlas; no authoritative AI-bot IP-range file is published for the agentic browser"
    },
    "asn": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise"
    },
    "reverse_dns_suffix": {
      "value": null,
      "verify_status": "not-applicable",
      "note": "runs from the user's network; no operator-controlled rDNS suffix"
    },
    "supports_web_bot_auth": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://openai.com/index/introducing-chatgpt-atlas/"
    },
    "signature_agent_domain": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://openai.com/index/introducing-chatgpt-atlas/"
    },
    "jwks_url": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://openai.com/index/introducing-chatgpt-atlas/"
    },
    "verification_methods": [
      "IP-signature"
    ],
    "crawl_traffic_share": {
      "value": null,
      "verify_status": "not-applicable",
      "note": "agentic browser; not tracked as a distinct AI crawler share"
    },
    "targeted_content_type": "HTML, text (interactive browsing)",
    "documentation_url": "https://openai.com/index/introducing-chatgpt-atlas/",
    "first_seen_date": {
      "value": "2025-10-21",
      "source": "https://openai.com/index/introducing-chatgpt-atlas/",
      "last_verified": "2026-06-15",
      "note": "ChatGPT Atlas launch date (macOS)"
    },
    "last_verified_date": "2026-06-15",
    "block_vs_allow_recommendation": "conditional — acts inside a real user's browser session; it is not a bulk crawler and cannot be reliably blocked by robots.txt or UA. Manage via session-level / bot-management controls if agent actions are a concern.",
    "citation_referral_value": "medium (acts on a user's behalf in-browser; can surface and act on your page for that user)",
    "cloudflare_verified_category": {
      "value": null,
      "verify_status": "verify-against-primary-at-build",
      "source_hint": "https://radar.cloudflare.com/bots/directory"
    },
    "status": "active",
    "triples": [
      [
        "ChatGPT Atlas",
        "operated_by",
        "OpenAI"
      ],
      [
        "ChatGPT Atlas",
        "has_bot_type",
        "agentic-browser"
      ],
      [
        "ChatGPT Atlas",
        "verified_via",
        "IP-signature"
      ]
    ],
    "attribute_sources": [
      {
        "claims": [
          "operator",
          "first_seen_date",
          "documentation_url",
          "bot_type"
        ],
        "source": "https://openai.com/index/introducing-chatgpt-atlas/",
        "last_verified": "2026-06-15"
      },
      {
        "claims": [
          "published_ip_range_url"
        ],
        "source": "https://help.openai.com/en/articles/12603091-chatgpt-atlas-for-enterprise",
        "last_verified": "2026-06-15"
      }
    ],
    "ua_substring_meta": {
      "value": null,
      "verify_status": "no-stable-ua",
      "note": "agentic browser: a Chromium-based browser running on the user's machine with an agent mode; no stable, distinctive AI user-agent token is published. Identify by IP/signature, not UA."
    }
  }
}