Every website you open can read your IP address, location, hardware and a fingerprint of your device before you click anything. This report shows you exactly what that looks like from the other side.
Everything runs in your browser. This page stores nothing and sends nothing to us. Its only outbound requests are fonts, the map library and tiles, and a single IP lookup, all made directly by your browser.
Everything above was read from your browser in a couple of seconds, without a form and without a click. None of it is inevitable. These are mainstream tools used by millions of people who decided they didn't want to be profiled.
privacy.resistFingerprinting (about:config) randomises canvas output, masks the GPU, normalises fonts and sets the timezone to UTC, defeating most of what this page demonstrates in one setting.