twitter, how did you do it?

Browsing:

  • Chrome:
  1. I’m logged with my Google account.
  2. I’m not logged in twitter
  3. searching for buying a new car. It is my first time looking VW web page.
  • Firefox:
  1. I’m not logged in any Google service.
  2. I’m logged in twitter
  3. i didn’t use this browser to search any car.

and finally……..:    First twitter ads promoted in my timeline:  VW Polo car

Twitter, did you look for cookies of another browsers?