Secret Tracking

We believe that the Safari Workaround placed the DoubleClick ID Cookie on users' browsers. This allowed Google to obtain and collate private and personal information about users, including the following :

  • Internet surfing habits, including
  • Websites visited
  • The date, time and duration of website visits
  • Pages viewed and time spent on that page
  • IP address of the browser
  • The frequency of the visits to each website
  • Interests, hobbies and pastimes
  • News reading habits
  • Shopping habits
  • Social class
  • Racial or ethnic origin
  • Political affiliation or views
  • Religious beliefs
  • Trade Union membership
  • Physical health
  • Mental health
  • Sexuality
  • Sexual interests
  • Age
  • Gender
  • Financial situation
  • Geographic location


Google then created user groups, such as "football lovers", "current affairs enthusiasts" so that the DoubleClick service could then offer advertisers subscribing to Adsense the opportunity to target them with tailored advertisements.