__utmb
Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.
目的
Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.
遵守 GDPR
法律依据: 合法权益（《欧洲个人信息权公约》第 6(1)(f)条）
根据 GDPR 规定，除非是网站核心功能所严格需要的，否则该 cookie 必须征得用户同意。
参考编号: 256c29c8-d881-11e9-8a34-2a2ae2dbcce4