How it works
When you open a webpage, your browser usually sends its User Agent along with the request. The website reads it before loading the page, giving it a basic idea of what browser or device is visiting.
Browser information detected
Your User Agent
This is the short description your browser shares with websites. You can select it yourself or copy it with one click.
Detected User Agent String
Detecting your browser...
- Platform
- Detecting...
- Language
- Detecting...
- Cookies
- Logical Processors
- Detecting...
The simple explanation
What is a User Agent?
Think of a User Agent as your browser’s name tag. It is a line of text that tells a website which browser and operating system you are using. It may also include your browser version, general device type, and a few compatibility details.
Why websites check it
A website can use this information to adjust its layout, give the right setup instructions, diagnose browser problems, or avoid using a feature that an older browser may not handle correctly.
It is not an ID card
A User Agent does not prove who you are or exactly which device you own. Browsers, privacy tools, bots, and users can change or copy the text, so websites should treat it as a useful clue rather than guaranteed proof.
Why the text looks weird
The string may name several browsers or technologies that you are not actually using. Much of that odd wording is left over from older web compatibility rules, and removing it could still confuse some websites.
A quick privacy note
Your User Agent usually does not include your name, email address, or home address. However, websites can combine it with details such as screen size, language, browser features, and network information to help recognize a browser. Modern browsers often reduce or standardize some of these details to limit tracking.