{
  "schemaVersion": 1,
  "experimentId": "verified-crawler-observation-protocol-2026-09-19",
  "timezone": "Asia/Shanghai",
  "window": {
    "from": "2026-09-27T00:00:00+08:00",
    "to": "2026-09-27T23:04:51+08:00",
    "generatedAt": "2026-09-27T23:07:10+08:00",
    "selection": "只读读取流量数据库最近 500 条自动程序候选，再按北京时间日期筛选。"
  },
  "policy": {
    "userAgentIsIdentityProof": false,
    "fullIpPublic": false,
    "databaseWrites": false,
    "verifiedRequiresPublishedRangeOrForwardConfirmedDns": true,
    "unsupportedOrUnresolvedMeansFake": false
  },
  "summary": {
    "candidates": 99,
    "verified": 5,
    "unsupported": 94,
    "notVerified": 0,
    "excludedManual": 0
  },
  "byCrawler": {
    "Google": { "verified": 1 },
    "Bing": { "verified": 4 },
    "Ahrefs": { "unsupported": 80 },
    "其他自动程序": { "unsupported": 9 },
    "360": { "unsupported": 4 },
    "Yandex": { "unsupported": 1 }
  },
  "verifiedExamples": [
    {
      "at": "2026-09-27T19:41:53.367+08:00",
      "ip": "192.178.4.x",
      "crawler": "Google",
      "path": "/",
      "httpStatus": 200,
      "method": "PTR reverse lookup plus forward DNS match"
    },
    {
      "at": "2026-09-27T16:31:29.212+08:00",
      "ip": "207.46.13.x",
      "crawler": "Bing",
      "path": "/technical/ai-crawler-governance/",
      "httpStatus": 200,
      "method": "PTR reverse lookup plus forward DNS match"
    },
    {
      "at": "2026-09-27T15:34:57.722+08:00",
      "ip": "157.55.39.x",
      "crawler": "Bing",
      "path": "/content/evidence-and-sources/",
      "httpStatus": 200,
      "method": "PTR reverse lookup plus forward DNS match"
    },
    {
      "at": "2026-09-27T12:04:58.486+08:00",
      "ip": "157.55.39.x",
      "crawler": "Bing",
      "path": "/experiments/ai-citation-accuracy/",
      "httpStatus": 200,
      "method": "PTR reverse lookup plus forward DNS match"
    },
    {
      "at": "2026-09-27T03:36:10.243+08:00",
      "ip": "52.167.144.x",
      "crawler": "Bing",
      "path": "/experiments/records/machine-entry-consistency-2026-09-17/",
      "httpStatus": 200,
      "method": "PTR reverse lookup plus forward DNS match"
    }
  ],
  "interpretation": [
    "本窗口确认真实 Google 抓取 1 条、真实 Bing 抓取 4 条，且这 5 条访问的服务器响应均为 HTTP 200。",
    "94 条候选因当前没有适用的官方 IP 范围或可靠 DNS 自动核验规则而保持 unsupported/未确认；这不表示它们一定伪装或恶意。",
    "没有候选被支持的核验规则明确判为 not-verified。User-Agent 标签和访问路径不能单独证明来源。",
    "已核验请求不代表对应页面已被搜索引擎收录，也不代表获得排名或 AI 引用。"
  ],
  "limitations": [
    "查询从最近 500 条自动程序候选中过滤本地日期窗口；不覆盖站点所有访问者，也不展示完整原始 User-Agent。",
    "仅公开脱敏 IP 和少量代表记录；DNS 与平台公开 IP 范围会变化，结果只对应核验时点。",
    "没有将候选事件数解释为唯一访客数或独立爬虫数。"
  ],
  "redaction": { "ip": "IPv4 最后一段以 x 替代", "accountData": "未包含" }
}