Spot spoofed browsers by their internal contradictions
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A free test page that shows what any site can quietly learn from your browser
Shows in plain English what any site silently learns from your browser, a quick way to explain fingerprinting risk to users or your own team.
Session Context is a free, open-source page that measures what a single website can learn about you and explains each finding in plain English before showing the raw data. It covers browser and device details, screen and timezone, canvas and font fingerprinting, HTTP headers, connection type and battery status, with permission-gated signals such as location kept optional. Almost everything is measured in your browser and never leaves it; there are no analytics or third parties. MIT licensed.
Spot spoofed browsers by their internal contradictions
Lightweight analytics and session replay for web and mobile apps
Big text, timers and QR codes, with the whole message held in the link
A Chrome extension that turns your logged-in browser into an agent
Claude Code and Codex usage limits on your iPhone home screen and Mac menu bar
A Mac browser with a separate agent in every Space