It's a short, technical description of the web browser, operating system, (and maybe mobile device) that you're using as you access the internet. Your web browser sends it to every website you visit.
With this extension, you can quickly and easily switch between user-agent strings. Also, you can set up specific URLs that you want to spoof every time. Please note that this does not provide improved privacy while browsing the Internet and that some sites might have other means to figure out that the browser is not what it pretends to be.
For example, a website might use the user agent string to determine if you’re on a mobile device. If so, it will serve you the mobile-optimized version of the site, which is designed to load quickly and be easy to navigate on a smaller screen. Similarly, if you’re using an older browser, the website might serve you a simpler version of the site that’s compatible with your browser’s capabilities.
Answer: In W3C usage, a user agent is a browser, media player, or extension. It is the software that delivers the content, not the content itself. The W3C User Agent Accessibility Guidelines (UAAG) 2.0 definition of a user agent.
In short, a User Agent (UA) is a text string that acts like a “digital ID card” or “passport” your web browser (or any internet connected software) automatically sends to the server of each website you visit.
A user agent is a type of software that acts as an intermediary between a user and a network service, like a website.
User-agent checker instantly tells your browsers user agent. User-agent is the identifier which lets the server know what browser is requesting the resource or what operating system the request initiator uses.
The HTTP User-Agent request header is a characteristic string that lets servers and network peers identify the application, operating system, vendor, and/or version of the requesting user agent.
Get your users agent string, web browser, opera system, device information and more... Useragent is a small piece of data that is sent by your web browser when accessing a website or application.
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 ...
The user agent string format is currently specified by section 10.1.5 of HTTP Semantics. The format of the user agent string in HTTP is a list of product tokens (keywords) with optional comments. For example, if a user's product were called WikiBrowser, their user agent string might be WikiBrowser/1.0 Gecko/1.0. The "most important" product component is listed first. The parts of this string ...
The extension enables user-agent spoofing on specific domains only; it is conversely possible to exclude certain domains from spoofing. Check the Options page for more info. 5. You can set per-site user-agent strings 6. There is an option to randomize user-agent strings. 7.
UserAgents.io provides a simple way to parse a user agent and get technical information about it. The database is updated daily and easy to navigate.
This is a simple utility for users who want to discover the 'user-agent' given by the device by default - "Display browser User-Agent and other useful device info." Bloatware is an odd description for a 1.37MB app.
Ein User Agent (englisch user „Benutzer“, agent „Mittler, Stellvertreter, Beauftragter“) ist eine clientseitige Anwendung zur Nutzung eines Netzwerkdienstes.
Understand user agents, their role in bot detection, and how to customize them ethically for scraping and automation. Get tips and tools for testing in 2025.
Since this criterion was written, the HTML Living Standard has adopted specific requirements governing how user agents must handle incomplete tags, incorrect element nesting, duplicate attributes, and non-unique IDs.
Discover what a user agent is and how it facilitates web interactions. Learn about User-Agent strings and their role in web optimization.
Ein User Agent ist eine Softwareanwendung oder ein Programmcode, der auf einem Endgerät wie einem Computer oder einem Smartphone läuft und dazu ...
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.
A User-Agent string is a text value within the User-Agent header that provides detailed information about the client. Although the structure can vary across browsers and devices, most strings share a few common components that help servers interpret the request correctly. Each part of the User-Agent string carries a specific type of information.
Google Admin Toolbox Useragent ; Mozilla Compatibility, Mozilla 5.0 ; Platform, Linux; Android 6.0.1; Nexus 5X Build/MMB29P ; Layout Engine, AppleWebKit 537.36 ...
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.
It's historically used as a signal to which browser you're using or what bot you are. Some sites (looking at you Google) use it or some other technique to ...
We've collected millions of user agents and have categorised a selection of them here for you, based on many of the things we detect about them - Operating System, Browser, Hardware Type, Browser Type, and so on.
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..
A user agent is the raw information relating to the visitor connecting to your site. Whenever someone, or some thing, connects to your website, they are passing information pertaining to the agent used to connect to your site. While most see Internet Explorer as the method of connection, a ...
A user agent is a computer program representing a person, for example, a browser in a Web context.
Your browser sends its user agent to every website you connect to.
A user agent, or UA, is a string of information that identifies a user’s browser and operating system. When you visit a website, your Internet browser sends information to the web page about your web browser, operating system, device, screen resolution, and more.