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"Facebook's new ad service, launched earlier this month, gets around the traditional third-party advertising cookies by doing the tracking on its own. When a pe

"Facebook's new ad service, launched earlier this month, gets around the traditional third-party advertising cookies by doing the tracking on its own. When a person visits a website selling shoes on a work PC, a piece of Facebook code placed on that site—Facebook's own cookie—recognizes that the person has logged into Facebook using that browser before." How does this even work? Is the shoe seller placing some kind of JavaScript snippet on their website in order to allow Facebook to track users? Is this coming from their "Like" button?

sp332 13y ago
Yes. https://developers.facebook.com/docs/plugins/like-button/ https://developers.facebook.com/docs/plugins/like-button/
rbaud 13y ago
Yes, the "Like" button is used by Facebook to track users across third-party sites. Clicking the button is not necessary for information to be transmitted to Facebook. More information straight from Facebook: https://www.facebook.com/help/186325668085084 https://www.facebook.com/help/186325668085084