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How the Meta Pixel Tracks You Across the Internet in 2026 (And What Happens to That Data)

Meta Pixel is an invisible piece of JavaScript code embedded on millions of websites that tracks your behaviour across the internet and sends that data back to Meta's servers. Unlike tracking confined to a single site, Meta Pixel follows you from website to website, recognising you through a unique identifier stored in your browser and building a detailed profile of your interests, purchases and online activity. This data is then used to power targeted advertising, retargeting campaigns and audience insights that help businesses optimise their ad spending - but it also raises significant privacy concerns about who has access to your browsing history and how that information is used without your explicit knowledge. Understanding how Meta Pixel works, what data it collects and where that data goes is essential for anyone concerned about digital privacy and the invisible mechanisms shaping the ads you see every day.

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