browser.gripe

What your browser tells every site.
You're using
    Your User-Agent string
    /json /headers.json

    Browser & system

    Client hints

    Screen

    Window

    Language & time

    Privacy & storage

    Hardware & network

    Preferences

    Features

    Headers the server saw

    Loading…

    Nothing here is stored. Everything on this page is what any website can already see when you visit it: your browser hands it over with every request or to any script that asks. This page reads it, shows it to you, and keeps nothing: no cookies, no analytics, no logs, no third-party requests. The fun part: ad networks combine exactly these details into a "fingerprint" that can follow you without cookies.

    Part of the tools.gripe networkMore tools →