On the Web, a user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content. [1] 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.
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.
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.
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.
Spoofing user agents carries both legal and ethical risks. Responsible use means maintaining consistency, transparency, and avoiding the impersonation of protected services. Introduction A user agent is a text string sent by your browser or script during an HTTP request to identify the client's software and operating environment to the server.
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.
Un user agent est un identifiant qui permet à un « agent » de s'identifier sur le web et de donner des informations sur lui-même.
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 tailored to different browsers and operating systems ...
Un user agent ou agent utilisateur est une application logicielle cliente qui utilise un protocole réseau particulier ; l'expression est principalement employée ...
Understand User Agents in 2025: learn what they are, how they work, their impact on web content & automation, and ethical considerations. A complete guide for developers, marketers, and data professionals.
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 ...
Discover what a user agent is and how it facilitates web interactions. Learn about User-Agent strings and their role in web optimization.
Les agents utilisateurs, ou user-agent en anglais, servent à identifier le logiciel utilisé pour accéder à un site web ou à un autre service en ligne.
Your user agent is a string that web servers use to identify your browser and optimize content delivery. Learn what a user agent is, how to troubleshoot browser issues, and see your user agent details on this site.
& User Centric. Nous concevons, designons et développons des produits et des expériences digitales sur-mesure : sites web, applications mobiles, apps dans ...
Discover what a User-Agent is and how to check User-Agent strings. Learn how to manage your User-Agent for better privacy, security, and optimized browsing experiences with our comprehensive guide.
The User-Agents.Net website provides various user agent lists and technical information about them.