Learn what your user agent is and what it reveals about your web browser, operating system, and mobile device. Find out how to change or fake your user agent and why some sites may detect it.
February 24, 2025 - The Chrome (or Chromium/Blink-based engines) user agent string is similar to Firefox's.
February 7, 2025 - 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 ...
Learn what a user agent is, how it identifies itself with a user agent string, and how it can be spoofed. A user agent can be a browser, a bot, or another app accessing the Web.
Learn what a user agent is, how it identifies browsers and devices to web servers, and how to find and switch your user agent in different browsers. See a list of common user agents for desktop and mobile devices.
Spoofs & Mimics User-Agent strings.
1 day ago - AG-UI (Agent-User Interaction Protocol) is an open, event-driven protocol designed to address this need. It establishes a structured communication layer between backend AI agents and frontend applications, enabling real-time interaction through a stream of structured JSON events.
2 days ago - AG-UI Protocol, developed by CopilotKit, is an open and lightweight event-based protocol that standardizes AI agent communication with front-end applications using real-time JSON event streams. It enhances responsiveness and user-awareness through structured Server-Sent Events, allowing seamless ...
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Find out your user agent string, browser, opera system, device and more with this tool. Learn what a user agent is and how it is used for feature detection and compatibility.
Learn what the User-Agent header is, how it identifies the browser, operating system, and other details of the requesting user agent, and how to parse it. See examples of different User-Agent strings for various browsers, crawlers, and tools.
Learn how to decode and understand any user agent string sent by your web browser or other software. Use this tool to parse user agents by browser, OS, platform, hardware, software type and layout engine.
The HTTP header User-Agent is a request header that sends a characteristic string to web servers, allowing them to identify the Operating System (OS) and browser of the client making the request. Every time your browser connects to a website, it includes the User-Agent field in the HTTP header. This information helps websites serve content ...
Learn why feature detection is better than browser detection and how to use it with modern APIs and CSS. Avoid the pitfalls of parsing the user agent string (UA sniffing) and the alternatives to UA sniffing.
User agent is a term for the Web browser or application that connects to a website or service through the Internet. Learn how user agent works, what information it sends to the server, and how some browsers used to spoof other browsers in the past.
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Understand what information is contained in a Chrome user agent string. Get an analysis of your or any other user agent string. Find lists of user agent strings from browsers, crawlers, spiders, bots, validators and others..
1 week ago - The User-Agent (UA) string is contained in the HTTP headers and is intended to identify devices requesting online content. The User-Agent tells the server what the visiting device is (among many other things) and this information can be used to determine what content to return.
Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want
Detect user-agent, operating system, browser, and device using several libraries, including ua-parser, ua-parser-js, and platform.
This tool can parse HTTP headers (such as the User-Agent and User-Agent Client Hints) to provide information on the associated device, operating system, and browser.
March 12, 2025 - User-Agent reduction limits passively shared browser data to reduce the volume of sensitive information which leads to fingerprinting. The reduction is now complete.
February 8, 2024 - Online privacy can be confusing. In this easy-to-read list, you'll find short definitions of essential privacy and Internet terms including User Agent. Check out the Brave Privacy Glossary here.
Accessibility resources free online from the international standards organization: W3C Web Accessibility Initiative (WAI).
DeviceAtlas identifies and verifies connected devices in real time for rich, actionable intelligence across every customer touchpoint.
February 25, 2004 - This is the latest accepted revision, reviewed on 12 February 2025. In computing, the User-Agent header is an HTTP header intended to identify the user agent responsible for making a given HTTP request. Whereas the character sequence User-Agent comprises the name of the header itself, the header ...