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  "vantages": [
    "ams3",
    "sfo3",
    "nyc3",
    "ca-tunnel",
    "sgp1"
  ],
  "hosts": 100000,
  "per_vantage": {
    "ams3": {
      "hosts_probed": 100000,
      "has_aaaa": 39329,
      "has_aaaa_pct": 39.3,
      "v6_reachable": 38025,
      "v6_reachable_pct": 38.0,
      "median_v6_connect_ms": 1.6,
      "median_v4_connect_ms": 1.3
    },
    "sfo3": {
      "hosts_probed": 100000,
      "has_aaaa": 39453,
      "has_aaaa_pct": 39.5,
      "v6_reachable": 38082,
      "v6_reachable_pct": 38.1,
      "median_v6_connect_ms": 3.6,
      "median_v4_connect_ms": 3.2
    },
    "nyc3": {
      "hosts_probed": 100000,
      "has_aaaa": 39470,
      "has_aaaa_pct": 39.5,
      "v6_reachable": 38012,
      "v6_reachable_pct": 38.0,
      "median_v6_connect_ms": 2.2,
      "median_v4_connect_ms": 1.9
    },
    "ca-tunnel": {
      "hosts_probed": 100000,
      "has_aaaa": 39126,
      "has_aaaa_pct": 39.1,
      "v6_reachable": 38017,
      "v6_reachable_pct": 38.0,
      "median_v6_connect_ms": 3.5,
      "median_v4_connect_ms": 1.7
    },
    "sgp1": {
      "hosts_probed": 100000,
      "has_aaaa": 39581,
      "has_aaaa_pct": 39.6,
      "v6_reachable": 37956,
      "v6_reachable_pct": 38.0,
      "median_v6_connect_ms": 3.4,
      "median_v4_connect_ms": 2.9
    }
  },
  "hosts_probed_from_all_vantages": 100000,
  "consensus": {
    "hosts_with_aaaa_anywhere": 40206,
    "aaaa_presence_distribution": {
      "aaaa_at_0_of_5": 59794,
      "aaaa_at_1_of_5": 766,
      "aaaa_at_2_of_5": 189,
      "aaaa_at_3_of_5": 96,
      "aaaa_at_4_of_5": 248,
      "aaaa_at_5_of_5": 38907
    },
    "v6_reachability_distribution": {
      "reachable_from_0_of_5": 1951,
      "reachable_from_1_of_5": 82,
      "reachable_from_2_of_5": 73,
      "reachable_from_3_of_5": 50,
      "reachable_from_4_of_5": 536,
      "reachable_from_5_of_5": 37514
    },
    "reachable_everywhere": 37514,
    "partially_reachable": 741,
    "unreachable_everywhere_but_v4_alive": 1026,
    "unreachable_everywhere_and_v4_dead": 925,
    "geo_dns_divergent": 13174
  },
  "examples": {
    "partially_reachable": [
      {
        "rank": 67,
        "host": "www.ncbi.nlm.nih.gov",
        "reachable_from": [
          "ams3",
          "sfo3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 189,
        "host": "www.gnu.org",
        "reachable_from": [
          "ca-tunnel"
        ]
      },
      {
        "rank": 245,
        "host": "mp.weixin.qq.com",
        "reachable_from": [
          "ams3",
          "sfo3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 541,
        "host": "www.iubenda.com",
        "reachable_from": [
          "ams3",
          "sfo3",
          "nyc3",
          "sgp1"
        ]
      },
      {
        "rank": 561,
        "host": "www.fedex.com",
        "reachable_from": [
          "ams3",
          "sfo3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 591,
        "host": "www.nieuwfinancieel.nl",
        "reachable_from": [
          "ams3",
          "sfo3",
          "nyc3",
          "ca-tunnel"
        ]
      },
      {
        "rank": 602,
        "host": "static.parastorage.com",
        "reachable_from": [
          "sgp1"
        ]
      },
      {
        "rank": 605,
        "host": "www.toeteloet.be",
        "reachable_from": [
          "sfo3",
          "nyc3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 610,
        "host": "www.foxnews.com",
        "reachable_from": [
          "sgp1"
        ]
      },
      {
        "rank": 628,
        "host": "www.ups.com",
        "reachable_from": [
          "ams3",
          "sfo3",
          "sgp1"
        ]
      },
      {
        "rank": 647,
        "host": "fartlabs.org",
        "reachable_from": [
          "ams3",
          "sfo3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 689,
        "host": "www.foxbusiness.com",
        "reachable_from": [
          "sgp1"
        ]
      },
      {
        "rank": 762,
        "host": "cdn.rawgit.com",
        "reachable_from": [
          "ams3",
          "sfo3",
          "nyc3",
          "sgp1"
        ]
      },
      {
        "rank": 800,
        "host": "www.matrassenhuisluc.be",
        "reachable_from": [
          "sfo3",
          "nyc3",
          "ca-tunnel",
          "sgp1"
        ]
      },
      {
        "rank": 835,
        "host": "www.poquoson.k12.va.us",
        "reachable_from": [
          "sfo3",
          "nyc3",
          "ca-tunnel"
        ]
      }
    ],
    "broken_v6_everywhere": [
      {
        "rank": 58,
        "host": "www.reddit.com"
      },
      {
        "rank": 1280,
        "host": "eac-zlatograd.com"
      },
      {
        "rank": 1307,
        "host": "lara-star.com"
      },
      {
        "rank": 1582,
        "host": "www.licaidigital.com"
      },
      {
        "rank": 1689,
        "host": "www.elsevier.com"
      },
      {
        "rank": 1981,
        "host": "www.ebi.ac.uk"
      },
      {
        "rank": 2236,
        "host": "www1.folha.uol.com.br"
      },
      {
        "rank": 2454,
        "host": "blog.csdn.net"
      },
      {
        "rank": 2841,
        "host": "gallica.bnf.fr"
      },
      {
        "rank": 3100,
        "host": "www.ncei.noaa.gov"
      },
      {
        "rank": 3141,
        "host": "www.darpa.mil"
      },
      {
        "rank": 3145,
        "host": "www.fraudlabspro.com"
      },
      {
        "rank": 3314,
        "host": "regex101.com"
      },
      {
        "rank": 3348,
        "host": "www.harpercollins.com"
      },
      {
        "rank": 3548,
        "host": "tv.sohu.com"
      }
    ],
    "geo_dns_divergent": [
      {
        "rank": 1,
        "host": "www.facebook.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 2,
        "host": "fonts.googleapis.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 4,
        "host": "www.googletagmanager.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 5,
        "host": "www.youtube.com",
        "distinct_aaaa_sets": 4
      },
      {
        "rank": 6,
        "host": "www.instagram.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 9,
        "host": "fonts.gstatic.com",
        "distinct_aaaa_sets": 4
      },
      {
        "rank": 11,
        "host": "play.google.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 12,
        "host": "ajax.googleapis.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 13,
        "host": "maps.google.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 16,
        "host": "youtu.be",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 17,
        "host": "docs.google.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 18,
        "host": "en.wikipedia.org",
        "distinct_aaaa_sets": 4
      },
      {
        "rank": 20,
        "host": "support.google.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 21,
        "host": "instagram.com",
        "distinct_aaaa_sets": 5
      },
      {
        "rank": 22,
        "host": "developers.google.com",
        "distinct_aaaa_sets": 5
      }
    ]
  },
  "pairwise_reachability_disagreement": {
    "ams3|sfo3": {
      "hosts": 39605,
      "disagree": 183,
      "disagree_pct": 0.46
    },
    "ams3|nyc3": {
      "hosts": 39635,
      "disagree": 229,
      "disagree_pct": 0.58
    },
    "ams3|ca-tunnel": {
      "hosts": 39468,
      "disagree": 410,
      "disagree_pct": 1.04
    },
    "ams3|sgp1": {
      "hosts": 39790,
      "disagree": 367,
      "disagree_pct": 0.92
    },
    "sfo3|nyc3": {
      "hosts": 39666,
      "disagree": 142,
      "disagree_pct": 0.36
    },
    "sfo3|ca-tunnel": {
      "hosts": 39566,
      "disagree": 319,
      "disagree_pct": 0.81
    },
    "sfo3|sgp1": {
      "hosts": 39844,
      "disagree": 322,
      "disagree_pct": 0.81
    },
    "nyc3|ca-tunnel": {
      "hosts": 39591,
      "disagree": 383,
      "disagree_pct": 0.97
    },
    "nyc3|sgp1": {
      "hosts": 39877,
      "disagree": 378,
      "disagree_pct": 0.95
    },
    "ca-tunnel|sgp1": {
      "hosts": 39759,
      "disagree": 477,
      "disagree_pct": 1.2
    }
  },
  "baseline_delta": {
    "control_vantage": "ca-tunnel",
    "hosts_in_common": 100000,
    "gained_aaaa": 2054,
    "lost_aaaa": 1004,
    "gained_v6_reachability": 2147,
    "lost_v6_reachability": 994,
    "examples": {
      "gained_v6_reachability": [
        {
          "rank": 300,
          "host": "www.ft.com"
        },
        {
          "rank": 321,
          "host": "www.entrepreneur.com"
        },
        {
          "rank": 669,
          "host": "www.suamusica.com.br"
        },
        {
          "rank": 676,
          "host": "thenextweb.com"
        },
        {
          "rank": 825,
          "host": "www.barnesandnoble.com"
        },
        {
          "rank": 840,
          "host": "www.donysterling.co.uk"
        },
        {
          "rank": 941,
          "host": "www.bleepingcomputer.com"
        },
        {
          "rank": 1012,
          "host": "www.karsan.com"
        },
        {
          "rank": 1034,
          "host": "agrimetsoft.com"
        },
        {
          "rank": 1059,
          "host": "www.smethailandclub.com"
        },
        {
          "rank": 1160,
          "host": "nurmijarvi-golf.fi"
        },
        {
          "rank": 1183,
          "host": "rookietraders.com"
        },
        {
          "rank": 1401,
          "host": "softwaregbs.co"
        },
        {
          "rank": 1410,
          "host": "www.briansatwood.com"
        },
        {
          "rank": 1436,
          "host": "www.lawn-squad.com"
        }
      ],
      "lost_v6_reachability": [
        {
          "rank": 541,
          "host": "www.iubenda.com"
        },
        {
          "rank": 685,
          "host": "stmarkministries.com"
        },
        {
          "rank": 762,
          "host": "cdn.rawgit.com"
        },
        {
          "rank": 770,
          "host": "www.engadget.com"
        },
        {
          "rank": 857,
          "host": "www.nieuwekat.nl"
        },
        {
          "rank": 906,
          "host": "www.php.net"
        },
        {
          "rank": 969,
          "host": "mitosfafa.store"
        },
        {
          "rank": 1016,
          "host": "guitarblog.ru"
        },
        {
          "rank": 1019,
          "host": "www.progamer.ru"
        },
        {
          "rank": 1035,
          "host": "www.modevalley.cn"
        },
        {
          "rank": 1056,
          "host": "marketdarknet.org"
        },
        {
          "rank": 1145,
          "host": "marketdarknets.org"
        },
        {
          "rank": 1161,
          "host": "www.femke.design"
        },
        {
          "rank": 1264,
          "host": "pkspingame.com"
        },
        {
          "rank": 1279,
          "host": "www.biotechsonline.com"
        }
      ]
    }
  },
  "v6_vs_v4_latency": {
    "ams3": {
      "dual_stack_hosts": 37948,
      "median_v6_minus_v4_connect_ms": 0.3,
      "v6_faster_pct": 33.9
    },
    "sfo3": {
      "dual_stack_hosts": 38028,
      "median_v6_minus_v4_connect_ms": 0.5,
      "v6_faster_pct": 40.1
    },
    "nyc3": {
      "dual_stack_hosts": 37954,
      "median_v6_minus_v4_connect_ms": 0.4,
      "v6_faster_pct": 34.0
    },
    "ca-tunnel": {
      "dual_stack_hosts": 37980,
      "median_v6_minus_v4_connect_ms": 1.3,
      "v6_faster_pct": 21.4
    },
    "sgp1": {
      "dual_stack_hosts": 37886,
      "median_v6_minus_v4_connect_ms": 0.6,
      "v6_faster_pct": 36.1
    }
  }
}