__utmz
Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server
目的
Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server
GDPR 合規性
法律依據: 合法利益（GDPR 第 6(1)(f)條）
根據 GDPR，此 cookie 需要使用者同意，除非此 cookie 對網站的核心功能而言是絕對必要的。
參考 ID: 256c2c3e-d881-11e9-8a34-2a2ae2dbcce4