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.

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

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 ...

An investigation by The Markup found that some tax-filing websites using pixel code shared its users’ financial information with Facebook. Most websites have code running in the background to help the ...

Healthcare startups are scrambling to reassess how their websites and apps are built, and how third parties may, inadvertently or not, be putting patients’ protected health information at risk. In ...

Two of the biggest hospital networks in Louisiana have been hit by class-action lawsuits alleging their websites used a tracking code that shared sensitive patient information with Facebook and ...

Two hospital networks in Louisiana are being hauled to court in a pair of class-action lawsuits that accuses the hospitals of deploying Meta Pixel ad-tracker code and sharing sensitive medical data ...

New Orleans-based LCMC Health and Shreveport, La.-based Willis-Knighton Health System have been accused of using a tracking code in their websites that shares sensitive patient data without patients’ ...

When you look up a website in Blacklight, it will now report if it finds the TikTok pixel or X pixel. More detailed ...