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Web tracking and privacy: explained
Simple and precise explanations of the technologies that power web experiences, and the laws that govern them.
Cookies, Tags & Tracking
How different web technologies work.
What Are Third-Party Cookies?
How cookies set by external domains track users across the web.
ReadWhat Is a Tracking Pixel?
How invisible images collect data about user behavior.
ReadWhat Is Cookie Consent?
Why websites ask permission before setting cookies, and what the law requires.
ReadHow Do Tracking Pixels Set Cookies?
The HTTP mechanism that lets a 1x1 image write persistent identifiers into your browser.
ReadPrivacy & Regulation
The laws and frameworks that govern data collection on the web.