Google knows what you have been buying online, here’s how

SAN FRANCISCO: Google is quietly keeping track of every single purchase you have made in years, thanks to purchase receipts sent to your personal Gmail account.
According to a report in CNBC on Friday, the information is made available to users via a private web tool which, the company claims, keeps your data private.
Google, however, stressed it does not use the information for personalized ad tracking.
In 2017, the tech giant said it would stop using data collected from Gmail messages to personalize ads.