OS Detector

This page demonstrates how much a web server and browser script can learn about your device just from an ordinary page visit — no permissions requested, no cookies dropped.

Operating System

Detecting…

From the server (User-Agent header)

OS—

OS version—

BrowserWebKit

Browser version537.36

Device typedesktop

From the browser (JavaScript)

OSdetecting…

OS versiondetecting…

Browserdetecting…

Browser versiondetecting…

Client Hints APIdetecting…

Raw User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Browser Configuration

Language—

All languages—

Timezone—

UTC offset—

Screen resolution—

Viewport size—

Color depth—

Pixel ratio—

Platform—

CPU cores—

Device memory—

Touch points—

Cookies—

Do Not Track—

Preferred color scheme—

Connection—

Network

IP addresslooking up…

ISP / Organization—

ASN—

Connection type—

Location—

Postal code—

Coordinates—

Timezone (by IP)—

Source—