如果出價方需要自訂地理位置資料，建議使用 lat、lon 和 accuracy 欄位執行空間地理位置查詢。我們不建議使用 BidRequest.device.ip 欄位進行地理定位，因為 Google 只會以經過截斷的形式分享 IP 位址；如果使用經過截斷的 IP 位址進行地理定位，可能會導致結果不準確。
地理表 (已淘汰)
BidRequest.device.geo.ext.geo_criteria_id 欄位會以數字 ID 表示地理位置，並對應至 geo-table.csv 中的地理位置，您可以在 Protos 與參考資料頁面的參考資料表格部分下載該檔案。這個欄位和對應的資料表現已淘汰。您可以使用 BidRequest.device.geo 取得類似的地理位置資訊。
舉例來說，如果出價要求以城市級精確度填入 geo，geo_criteria_id 就會包含對應城市的代碼。您可以使用該 ID 在地理表中找出記錄。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-06-10 (世界標準時間)。"],[[["Google uses IP geolocation to provide coarse location data in bid requests, prioritizing user privacy by generalizing the location."],["The `Geo` object contains civil location fields (country, region, etc.) and geographical coordinates (lat, lon, accuracy) representing the same location."],["For custom geolocation targeting, utilize the `lat`, `lon`, and `accuracy` fields for spatial lookups instead of the truncated `ip` field."],["The `geo_criteria_id` and associated geo-table are deprecated; migrate to the `Geo` object for location information."],["While some locations may appear in reports, they might be non-targetable due to advertising regulations, like those in China."]]],[]]
