An investigation by The Markup found that pixel collects data from many students using other websites, including high schoolers who sign up for financial aid and college testing. Then the code shares ...

We’ve updated Blacklight, The Markup’s privacy inspector, to help you understand how sites are tracking you.

We’ve updated The Markup’s privacy tool to help you understand how sites are tracking you through TikTok and X pixels.

Find out how TikTok tracks you even if you don't use the app or have a profile: it collects your data and here's what you can do about it.

In the world of digital marketing, tracking pixels have long been the secret sauce for companies trying to understand their customers. These tiny, invisible bits of code are embedded in websites and ...

Since 2020, readers have used Blacklight, our pioneering website privacy inspector tool, to run more than 18 million scans. Previously, Blacklight detected tracking pixels from Google and Meta.