{
  "client_ip": "216.73.216.128",
  "timestamp": "2026-04-11T12:57:10Z",
  "reverse_dns": {
    "hostname": "",
    "mobile_keywords_found": null,
    "fixed_keywords_found": null
  },
  "mobile_headers": {},
  "user_agent": {
    "raw": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
    "signals": null,
    "likely_mobile_device": false
  },
  "cgnat": {
    "ip": "216.73.216.128",
    "is_cgnat_range": false,
    "is_private": false
  },
  "syn_fingerprint": {
    "ip": "216.73.216.128",
    "ttl": 120,
    "ttl_initial_guess": 128,
    "hops": 8,
    "ip_flags": "DF",
    "ip_id": 23178,
    "ip_total_length": 60,
    "mss": 1460,
    "window_size": 62727,
    "window_scale": 7,
    "sack_permitted": true,
    "timestamps": true,
    "tcp_options_order": [
      "MSS",
      "SACK",
      "TS",
      "NOP",
      "WS"
    ],
    "dont_fragment": true,
    "src_port": 16887,
    "is_ipv6": false,
    "captured_at": "2026-04-11T12:57:10.277068518Z"
  },
  "tls_fingerprint": {
    "ja3_hash": "9c2034e6f8a7cba2e44b9813adbd8d96",
    "ja3_string": "771,4866-4865-4867-49196-49195-52393-49200-49199-52392,5-0-45-10-13-23-43-35-16-51-11,29-23-24,0",
    "ja4": "t12d0911_5a0d15427bfb_3b202e1506af",
    "tls_version": 771,
    "cipher_count": 9,
    "extension_count": 11,
    "sni": "how.fast",
    "alpn": [
      "h2",
      "http/1.1"
    ]
  },
  "tcp_ip_analysis": {
    "os_guess": "Windows (likely)",
    "os_mismatch": false,
    "ttl_analysis": "TTL=120 (initial~128, 8 hops) — Windows range",
    "mss_analysis": "MSS=1460 — standard broadband",
    "window_note": "win=62727 scale=7",
    "tcp_options_note": "[MSS,SACK,TS,NOP,WS]"
  },
  "racing_connections": null,
  "client_signals": null,
  "cgn_analysis": {
    "total_probes": 0,
    "unique_ports": 0,
    "port_range": 0,
    "reuse_percent": 0,
    "min_port": 0,
    "max_port": 0,
    "likely_cgn": false,
    "note": "not enough probes yet"
  },
  "syn_ack_rtt_ms": 22.032807000000002,
  "ip_info": {
    "ip": "216.73.216.128",
    "org": "AS16509 Amazon.com, Inc.",
    "city": "Columbus",
    "region": "Ohio",
    "country": "US"
  },
  "tethering": {
    "likely_tethering": false,
    "note": ""
  },
  "inter_packet_timing": {
    "mean_iat_ms": 393.16,
    "stddev_iat_ms": 1518.84,
    "burst_count": 42,
    "burst_ratio": 1
  },
  "retransmission_stats": {
    "retransmission_count": 56,
    "retransmission_intervals_ms": [
      0.01,
      0.31,
      0.01,
      0.02,
      0.01,
      0.01,
      0.05,
      0.05,
      0.01,
      0.02,
      0.02,
      0.01,
      0.01,
      0.03,
      0.01,
      0.03,
      0.07,
      0.01,
      0.02,
      0.02,
      0.02,
      0.01,
      0.01,
      0.02,
      0.03,
      0.01,
      0.01,
      0.01,
      0.4,
      0.01,
      0.01,
      0.01,
      0.01,
      0.01,
      0.01,
      0.01,
      0.01,
      0.01,
      0.02,
      0.05,
      0.01,
      0.01,
      0.03,
      0.05,
      0.01,
      0.01,
      0.02,
      0.01,
      0.01,
      0.02,
      0.13,
      0.02,
      0.02,
      0.02,
      0.01,
      0.02
    ]
  },
  "verdict": {
    "device": {
      "score": 0,
      "reasons": null,
      "verdict": "Uncertain"
    },
    "connection": {
      "score": -1,
      "reasons": [
        "-1 standard MSS=1460",
        "(info) IP ID=23178 — confirms Windows (likely) TCP stack",
        "(info) SYN-ACK RTT=22ms — not scored (measures distance, not connection type)"
      ],
      "verdict": "Likely Fixed Network"
    },
    "combined_verdict": "Desktop on Fixed Network",
    "is_bot": false
  },
  "country_speed": {
    "country": "US",
    "p10": 9.9,
    "p25": 43.1,
    "median": 135.6,
    "p75": 338,
    "p90": 563.1,
    "tests": 49941090
  },
  "all_headers": {
    "Accept": "*/*",
    "Accept-Encoding": "gzip, br, zstd, deflate",
    "User-Agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  }
}