See what information websites can detect about your browser and device
Every time you visit a website, your browser automatically sends a wealth of information about yourself. This includes your operating system, browser type and version, screen resolution, language preferences, time zone, and much more. This information is sent in the HTTP headers and through JavaScript APIs that websites can access.
Browser fingerprinting is a technique where websites combine multiple pieces of browser information to create a unique identifier for you — without using cookies. Your "fingerprint" is created from details like your screen resolution, installed fonts, GPU model, browser version, time zone, and many other factors.
This is powerful because unlike cookies (which you can clear), your browser fingerprint is very hard to change and persists even in incognito mode. This is why fingerprinting is considered one of the most effective tracking methods on the internet.
Your User Agent string tells websites what browser and operating system you're using. While most websites don't care about the User Agent, some sites may serve different content based on your browser. You can change your User Agent using browser extensions or built-in settings.
Your screen resolution is the number of pixels displayed on your screen, typically expressed as width × height (e.g., 1920×1080). Websites use your screen resolution to determine how to layout their content. It's also one of the factors used in browser fingerprinting.
Common screen resolutions in 2026: 1920×1080 (Full HD, most common), 2560×1440 (QHD), 3840×2160 (4K), and mobile resolutions like 1080×2340.
Websites collect your browser type/version, operating system, screen resolution, language, time zone, installed fonts, GPU model, and many other details — all automatically sent with every page load.
Browser fingerprinting combines multiple browser characteristics to create a unique identifier. Unlike cookies, fingerprints are hard to change and persist even in incognito mode.
Use browser extensions like "User-Agent Switcher" for Chrome or Firefox, or use the built-in developer tools to toggle device mode.
Use a privacy-focused browser (Firefox with Enhanced Tracking Protection, Brave, Tor), install an ad blocker (uBlock Origin), clear cache regularly, and consider using a VPN.
A browser environment check analyzes and displays information about your web browser and device configuration. This includes browser type and version, operating system, screen resolution, installed plugins, font support, canvas fingerprinting, WebGL renderer, and other identifying information that websites use for compatibility testing, content optimization, and fingerprinting.
The User-Agent (UA) string is a piece of text that your browser sends to every website you visit. It identifies your browser type, version, operating system, and device. For example, Chrome on Windows 10 sends a different UA than Safari on macOS. Websites use the UA string to serve optimized content (mobile vs desktop versions, browser-specific features) and for analytics tracking. Your UA can be spoofed, but browsers like IPIPAI's browser check show the real, unmodified UA.
Browser fingerprinting is a tracking technique that creates a unique identifier based on your browser's configuration — screen resolution, installed fonts, browser version, canvas rendering, WebGL renderer, timezone, and other subtle characteristics. Unlike cookies, fingerprints are harder to clear and can uniquely identify you across sessions. IPIPAI's browser check shows your fingerprint hash so you can understand how trackable you are online.
Screen resolution refers to the number of pixels displayed horizontally and vertically (e.g., 1920x1080, 2560x1440). It affects how websites render content, which layout to use (responsive design), and is one component of browser fingerprinting. Higher resolution screens display more content and enable sharper images but require more processing power. The browser check also shows the device pixel ratio (DPR), which indicates whether your screen is a Retina/HiDpi display.
WebGL is a JavaScript API that enables 3D graphics rendering in web browsers without plugins. The WebGL renderer string (e.g., "ANGLE (Intel HD Graphics, OpenGL)") reveals your GPU model, which is highly unique and commonly used for browser fingerprinting. IPIPAI's browser check displays your WebGL renderer so you can see what information websites can extract about your graphics hardware.
Checking your browser information is useful for: troubleshooting website compatibility issues (is your browser too old?), verifying browser identity when using privacy tools, understanding what information websites can see about you, comparing browser fingerprints across different browsers, and testing privacy settings (cookies disabled, Do Not Track enabled). It's an essential tool for developers, privacy-conscious users, and anyone trying to understand their digital footprint.
To reduce your fingerprint uniqueness: use browsers designed for privacy (Tor Browser, Brave with shields), install extensions that block fingerprinting scripts (CanvasBlocker, ClearURLs), use uniform add-ons across browsers (fingerprinting relies on differences), clear cookies and site data regularly, disable WebGL in browser settings if not needed, use VPN to mask your IP address, and enable Do Not Track in browser settings. Note that complete fingerprint protection requires trade-offs in functionality.
Browser check shows information about your device and software (browser, OS, screen, GPU). IP lookup shows information about your network connection (IP address, location, ISP, ASN). Together, they provide a complete picture of how websites see you: IP lookup reveals where you connect from, while browser check reveals what device you use. For comprehensive privacy analysis, use both tools alongside IPIPAI's WebRTC leak test.
Your browser fingerprint is a unique combination of browser settings, device characteristics, and installed software. IPIPAI's browser check calculates your fingerprint hash and shows how unique your browser is compared to others.
Yes, browser fingerprinting is a powerful tracking technique that can identify you across sessions even without cookies. It's harder to block than cookies but less precise than a unique account login.
Your User-Agent string tells websites your browser type, version, operating system, and device type. This helps websites serve optimized content but also reveals your software configuration for fingerprinting.
Use privacy-focused browsers (Tor Browser, Brave), install fingerprinting blockers, keep browser extensions consistent, disable WebGL if not needed, and use a VPN. Complete fingerprint protection requires trade-offs in functionality.