How does the internet know your race?

“The right message, to the right user, at the right time,” is the gold standard for advertisers. Entire industries, including internet empires, are built on the foundation of advertising dollars, and targeted advertising allows companies to connect people with content in a very granular way. Many of the ads you see online are tailored based on the information you share, knowingly or unknowingly. Your personal data feeds into to a multi-billion dollar industry of profiling and targeted advertising that includes not only information you shared directly, but also characteristics that are gleaned by analyzing aggregate data and behavior.

Read more at https://cdt.org/blog/how-does-the-internet-know-your-race/