Browser signals your browser reveals
Your browser volunteers a surprising amount before you click anything: its name and version, the language it is set to, whether cookies are allowed, and the operating system underneath. None of it needs a permission prompt. Together these are the baseline profile almost every website builds on your first request.
Browser
What your browser announces about itself on every request.Frequently asked questions
What browser signals does ReadMyBrowser check?
ReadMyBrowser checks 5 browser signals: User agent, Browser, Operating system, Language, Cookies enabled. Each has its own explainer page with more detail.
Do any of these need my permission?
None of them do. Every browser signal here is read automatically as soon as the page loads, with no prompt.