Tracking Excavator: Uncovering Tracking in the Web's Past


Adam Lerner, Anna Kornfeld Simpson, Tadayoshi Kohno, and Franziska Roesner

Security & Privacy Research Lab, Department of Computer Science & Engineering, University of Washington



For Researchers


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Not yet, but we plan to make it available in the future. Please contact us if you are interested and would like to be notified. You can download our data now!


Can I download your data?
Yes! See below.


Download Our Data

We have made our input files (which sites we used in our measurements), data for our live and archival measurement runs, and the code we used for our analysis available for re-use. Please let us know if you do anything with it!

Input Files

Input files for our live runs in 2015 and 2016 are available here and were generated by examining the top 500 websites on the Alexa top sites list.

For our archival input files, which are available here, we did the following (as described in Section 5 of our paper):

Collected Data

Download Python .pickle files of our collected data:

Analysis Scripts

Download the Jupyter notebook and associated Python scripts we used to analyze the data (zip file, 40KB).