The data collected such as the amount website visitors, the source in which they've originate from, as well as web pages visted in an nameless kind. B?n có th? ngh? v? b? c?c nh? m?t lo?i ph??ng ti?n tr?ng có th? ???c s?a ??i cho phù h?p v?i b?t k? m?c ?ích n&agrav