What is My Browser

What's My Browser?

Open this page and it shows everything your browser shares with the websites you visit. There's nothing to enter or install. Results are grouped into six sections:

• Browser: name, exact version, engine, operating system and device type
• Connection: IP address, approximate location, internet provider and VPN check
• Display: screen size, browser size, scaling and color depth
• Language and time: preferred languages and time zone
• Hardware: processor threads, memory, touch support and graphics card
• Features and privacy: JavaScript, cookies, storage, privacy signals and more

The full user agent string is at the bottom.

Example result

Browser

Connection

Display

Language and time

Hardware

Features and privacy

User agent

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.36

What the results mean

Browser

Version. Look at the user agent at the bottom and it says Chrome 154.0.0.0, while the Browser Version line says 154.0.8037.97. Chrome and other Chromium browsers stopped putting their exact build number in the user agent, to make users harder to track. They still share it when a page asks directly, which is how this tool gets the precise number.

Engine. The engine is what actually draws web pages:

• Blink: Chrome, Edge, Opera, Brave and Vivaldi
• Gecko: Firefox
• WebKit: Safari. On iPhone and iPad, browsers have almost always had to use WebKit, so Chrome on an iPhone shows WebKit here too.

Two browsers on the same engine usually display websites the same way.

Architecture. Shows whether your processor is x86 (Intel and AMD) or ARM (Apple Silicon Macs and Snapdragon laptops). It matters when you're choosing which version of a program to download.

Connection

IP address. This is the address websites see your connection coming from. The location and internet provider are looked up from that address in IP databases. The location is approximate: usually right about the country, less reliable about the city. What's My IP has more detail.

VPN or proxy. The check looks for signs that your address belongs to a VPN service, proxy or data center rather than a home connection. As the note in the results says, a VPN or proxy that routes traffic through a home internet address looks like an ordinary home connection and can't be detected this way.

Display

Screen size and pixel ratio. In the example, the display is 3440 pixels wide and set to 125% scaling, so the pixel ratio is 1.25. Web pages work in CSS pixels, and 3440 ÷ 1.25 = 2752. That's why the browser size is 2752 wide.

Available screen is what's left after the taskbar or dock. When it matches the full screen size, the panel is hidden or set to auto-hide.

Browser size is the area web pages actually get. It's what matters for testing CSS breakpoints. Toolbars, tabs and the address bar take up the rest of the height.

Color depth. 24-bit means 8 bits each for red, green and blue: about 16.7 million colors. Almost every screen reports this.

Language and time

Languages come from your browser settings, in order of preference. Sites use the first one to choose which language to show you, so if a site keeps appearing in the wrong language, reorder this list.

Time zone comes from your computer's clock settings, not from your IP address. A VPN changes your IP but not your time zone. A VPN address in one country combined with a time zone from another is one of the most common ways websites spot VPN users.

Hardware

CPU cores counts logical processors (threads), not physical cores. A 16-core processor with two threads per core reports 32. Some browsers report a capped or rounded number for privacy.

Device memory is rounded and capped by the browser, as the note says. Treat it as a rough indication.

Touch points is the number of fingers the screen can register at once. 0 means no touch screen.

Graphics card. The name comes from WebGL. "ANGLE" is the translation layer Chrome uses to run web graphics on top of your system's graphics drivers. If WebGL shows "No," hardware acceleration is probably off. In Chrome, check Settings > System > "Use graphics acceleration when available."

Features and privacy

JavaScript, cookies and local storage. Almost every modern site needs all three. If JavaScript were off, most of this page couldn't fill itself in. "Cookies Enabled" only shows whether your browser accepts cookies at all. It doesn't tell you whether third-party cookies are blocked, which most browsers now do by default.

WebSockets let a site keep a live connection open for chat, notifications and live scores. This checks whether your browser supports them, which every current browser does, not whether your network allows them.

Do Not Track is an old privacy signal, and almost every site ignores it.

Global Privacy Control is its newer replacement, with more weight behind it. In California and several other US states, sites must treat it as a request not to sell or share your data. Firefox, Brave and DuckDuckGo support it; Chrome needs an extension.

Built-in PDF viewer shows whether PDFs open directly in the browser or get downloaded.

User agent

This is the text your browser sends with every request, and it's full of history. Every browser starts with "Mozilla/5.0," and Chrome also claims to be "like Gecko" and Safari. Those tokens were added decades ago so that websites checking for one specific browser wouldn't lock new ones out. Version numbers in the user agent are now deliberately frozen or shortened, which is why the more precise values above come from other sources.

When it's useful

Reporting a problem. Support teams and developers almost always ask which browser and version you're using. Copy the Browser section into your message. Leave out your IP address, especially on public forums.

Checking for updates. Compare your exact version with the latest release. Chrome, Edge and Firefox put out a new major version roughly every four weeks.

Web development. Browser size and pixel ratio tell you what your layout and images actually have to work with. A pixel ratio above 1 means visitors on similar screens see sharper images if you provide higher-resolution versions.

Checking a VPN. Make sure the IP and location belong to your VPN, and check whether your time zone gives you away. Then run the WebRTC Leak Test and DNS Leak Tester, which catch leaks this page can't show.

FAQ

How do I update my browser?

Most browsers update themselves. To check manually:

• Chrome: Help > About Google Chrome
• Firefox: Help > About Firefox
• Edge: Settings > About Microsoft Edge
• Safari: updates come with macOS through System Settings > Software Update
• Linux: Chrome and Firefox usually update through your package manager with the rest of the system

Why does my user agent say Windows 10 when I'm on Windows 11?

Browsers deliberately stopped reporting newer Windows versions in the user agent, so Windows 11 identifies itself as Windows 10. Macs report macOS 10.15 whatever version they run. It isn't a fault with your computer.

Is this information private?

No. Every website you visit can read all of it without asking; this page just shows it to you. None of it reveals your name, but together it can be close to unique. Screen size, scaling, graphics card, processor threads, languages and time zone combine into a profile that few other browsers share. Advertisers use combinations like this to recognize browsers without cookies, a technique called fingerprinting. The Browser Fingerprint Audit shows how identifiable your browser is.

Can I change my user agent?

Yes. Chrome's developer tools have an override under More tools > Network conditions, and there are extensions that do the same. It can make some sites behave oddly, and an unusual user agent usually makes you more identifiable, not less.