{
  "generatedAt": "2026-09-19T12:13:01.363Z",
  "period": {
    "start": "2026-08-01T00:00:00Z",
    "endExclusive": "2026-09-16T00:00:00Z",
    "timeZone": "UTC"
  },
  "definition": "Distinct daily selection records containing Portland, linked to a production/human-classified compare-page funnel event within one minute by session identifier and selection hash. Pair session counts deduplicate each partner across the entire period.",
  "limitations": [
    "Human is a user-agent/internal-cookie classification, not verified humanity. Unknown automation may remain.",
    "Session identifiers are browser identifiers, not unique people. A visitor may have several identifiers.",
    "Compare-page records can follow suggested links or preselected comparisons. A recorded selection is not necessarily an independently typed choice.",
    "Editorial and collection page events and rows without qualifying provenance are excluded. This is not a count of all site use.",
    "A three- or four-city selection contributes more than one Portland pair. Pair inclusions must not be labeled selection records.",
    "These records establish co-occurrence only, not residence, relocation intent, motives or outcomes."
  ],
  "aggregates": {
    "selection_records": 228,
    "session_identifiers": 173,
    "pair_inclusions": 337,
    "distinct_partners": 88,
    "top_pairs": [
      {
        "partner": "philadelphia-pa",
        "pair_inclusions": 41,
        "session_identifiers": 35,
        "exact_two_city_selections": 30,
        "exact_two_city_session_identifiers": 30
      },
      {
        "partner": "seattle-wa",
        "pair_inclusions": 38,
        "session_identifiers": 31,
        "exact_two_city_selections": 22,
        "exact_two_city_session_identifiers": 22
      },
      {
        "partner": "denver-co",
        "pair_inclusions": 29,
        "session_identifiers": 27,
        "exact_two_city_selections": 23,
        "exact_two_city_session_identifiers": 23
      },
      {
        "partner": "chicago-il",
        "pair_inclusions": 14,
        "session_identifiers": 13,
        "exact_two_city_selections": 7,
        "exact_two_city_session_identifiers": 7
      },
      {
        "partner": "portland-me",
        "pair_inclusions": 11,
        "session_identifiers": 11,
        "exact_two_city_selections": 11,
        "exact_two_city_session_identifiers": 11
      },
      {
        "partner": "tacoma-wa",
        "pair_inclusions": 7,
        "session_identifiers": 7,
        "exact_two_city_selections": 6,
        "exact_two_city_session_identifiers": 6
      },
      {
        "partner": "buffalo-ny",
        "pair_inclusions": 6,
        "session_identifiers": 5,
        "exact_two_city_selections": 0,
        "exact_two_city_session_identifiers": 0
      },
      {
        "partner": "fort-collins-co",
        "pair_inclusions": 7,
        "session_identifiers": 4,
        "exact_two_city_selections": 0,
        "exact_two_city_session_identifiers": 0
      }
    ]
  }
}