About

   .-----------------------------------------------------.
   |  "What Can I Learn About You?"                       |
   |  A privacy demonstration disguised as a 2003 relic.  |
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What is this?

A single-purpose website that shows you, in real time, how much a completely ordinary web page can figure out about a visitor. No exploits. No malware. No permission prompts. Just the information your browser hands over by default, plus a handful of standard JavaScript APIs.

Why does it exist?

Because privacy policies are boring and nobody reads them. It is far more convincing to simply show you what happens the instant you load a page: your IP, your rough location, your ISP, your browser and OS, your hardware, and a cookie-free fingerprint that can follow you across the web.

Once you have seen it, you cannot un-see it. And maybe you finally install that tracker blocker you have been meaning to.

How was it built?

Thing	Choice
Language	Plain PHP 7.4.33 (8+)
Frontend	Hand-written HTML, CSS, and vanilla JavaScript
Frameworks	None. Not one.
Database	None. Flat text files for the counter and guestbook.
Build tools	None. No Node, no Composer, no bundler.
Fonts	VT323, falling back to Courier New / Lucida Console
Deployment	Upload the files to any PHP shared host. That's it.
Aesthetic	Deliberately 1999–2005. Black screens, cyan links, borders, tables.

What it does NOT do

It does not set cookies.
It does not run analytics or load third-party trackers.
It does not log your IP or your fingerprint.
It does not use a database.
It does not phone home. The only outbound call is a geo-IP lookup for your report.

Changelog

Date	Update	Details
2026-07-12	Guestbook opened	Sign the guestbook like it is 2002. Flat-file, no database, no email harvesting.
2026-07-10	Interactive terminal shipped	A fake-but-functional shell. Try: help, scan, neofetch, fortune, whoami, export.
2026-07-08	Fingerprinting module	Canvas, audio, WebGL, and font fingerprints combined into a local SHA-256 ID.
2026-07-05	Privacy score engine	A 0-100 score across Tracking, Identity, Fingerprint, Security, Permissions, Network.
2026-07-01	Site launched	Initial release of "What Can I Learn About You?" -- built like it is still 2003.

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Credits & License

Released to the public domain. Take it, learn from it, host your own copy. Greetz to everyone still running a CRT, everyone who remembers dial-up, and everyone who ever signed a guestbook.