Life & fun · September 12, 2026
Everything a web page can learn about you, in plain English
Everything a single web page can work out about the browser, device and person that requested it — stated in plain English, with the raw values behind every claim.
Everything a web page can learn about you, in plain English launched on September 12, 2026 with 18 votes, #831 of 8,094 launches that month and more than 90% of that year's launches.
In plain words
This tool reveals what information a single webpage can discover about a user's browser, device, and identity, presenting findings in plain language alongside the underlying technical values. Designed for anyone curious about online privacy and tracking, it demonstrates data collection techniques without storing or transmitting personal information off the user's device. The tool displays script-based detection methods and explains how each technique works, offering transparency into invisible tracking mechanisms.
written from the facts on this page · September 2026
From the sources
Everything a single web page can work out about the browser, device and person that requested it. The plain-English findings come first — each expands to the exact values behind it — and the complete field-by-field record follows. Almost every value here is measured in your browser and never leaves it. No part of this page contacts another company, and nothing about you is written to disk. Two demonstrations do need this server to remember you for a while, and both say so where they appear. How each technique works → The findings below normally come from scripts, and those are not running. Everything in this list arrived anyway — sent by your browser before any code could execute, or…from sessioncontext.org
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