Facebook Pixel Hunt
- Social Media
In a collaboration between journalists at The Markup and Mozilla researchers, this study seeks to map Facebook’s pixel tracking network and understand the kinds of information it collects on sites across the web. The Markup will use the data collected in this study to create investigative journalism around the kinds of information Facebook collects about you, and where.
The study ended July 13, 2022.
Goals of the Study
This Study Will Collect:
This Study will Collect:
The data sent to Facebook pixels as you browse
The URLs of the web pages you browse
The time you spend browsing pages
The presence of Facebook login cookies in your browser
A study survey that the user completes
Metadata on the URLs your visit:
- The full URL of each webpage that you are on
- Time spent browsing and playing media on each webpage
- How far down the webpage you scrolled
In addition, your Rally demographics survey responses will be combined with study data for the analysis.
Note: Only deidentified metrics and models will be exported from our secure environment. For additional information about our data collection, view our metrics definition file in our open source codebase.
How We Protect You:
- This study will not share granular measurements data with third parties.
- All efforts to aggregate and analyze the data will be done in Mozilla’s secure analysis environment. After completion of analysis we will delete all raw data.
- All reporting by The Markup will only use aggregated, anonymized data.
Additional information provided for protection: We are committed to data minimization as a design principle in all of our studies. This means we only try to collect exactly what is required to support our study goals, and nothing more.
About our Collaborator
The Markup is a nonprofit newsroom that investigates how powerful institutions are using technology to change our society. They are a new kind of media organization, staffed with an unparalleled roster of quantitative journalists who pursue meaningful, data-driven investigations. Learn more about The Markup.
For more information contact:
Senior Data Engineer and Investigative Data Journalist