Data Mirror · Blog

The hidden economy of your browsing data

Deep dives into ad tracking, data brokers, real-time bidding, and what you can do about it.

All articles

What is data poisoning for privacy? The next step beyond ad blockers.

Ad blockers hide you. Data poisoning fights back — by feeding false data to trackers. Here's why that changes everything.

How to see exactly who tracks you online (in real-time)

73% of websites have hidden trackers. Here's exactly what's happening and how to see it in seconds.

What is a data broker — and why should you care?

Acxiom, LiveRamp, Oracle Data Cloud. Companies you've never heard of know everything about you.

Best Chrome Privacy Extensions in 2026

Data Mirror, Privacy Badger, uBlock Origin, Ghostery — honest comparison of what each one actually does.

What is Real-Time Bidding (RTB) and how does it work?

The auction that sells your profile in 100ms, every time you load a page.

Browser fingerprinting explained: why deleting cookies doesn't help

Your GPU, fonts, and screen resolution create a unique ID that persists across sessions.

GDPR 7 years later: are we actually more private?

97% of consent banners don't comply with GDPR. Here's what actually changed.

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