On the Web, a user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content. This includes all web browsers, such as Google Chrome and Safari, some email clients, standalone download managers like youtube-dl, and other command-line utilities like cURL.

User-agent spoofing is a form of fraud where the string of data is modified to provide false information or hide details – for example, a bot making multiple automated requests for content from a single device could modify the user agent string to pretend those requests (and the resulting impressions) are from multiple ...

The Navigator. userAgent read-only property returns the user agent string for the current browser. Note: The specification asks browsers to provide as little information via this field as possible. Never assume that the value of this property will stay the same in future versions of the same browser.

Here's how you can check and get the user agent using your browser's console: Open the developer tools in Google Chrome, Microsoft Edge, Mozilla Firefox, Safari or any other browser. You can use F12 or Ctrl+Shift+I on Windows/Linux, or Cmd+Option(⌘)+I on macOS.