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  1. User-Agent header - HTTP | MDN - MDN Web Docs

    Oct 28, 2025 · 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 …

  2. What's My User Agent?

    Useragent is a small piece of data that is sent by your web browser when accessing a website or application. It is used to identify the type of browser you are using, what device and operating …

  3. User agent - Wikipedia

    The HTTP User-Agent header is intended to clearly identify the agent to the server. [2] However, this header can be omitted or spoofed, [2] so some websites use other detection methods.

  4. What is my User Agent? - WhatIsMyBrowser.com

    Jun 25, 2024 · Each bit of your user agent indicates something particular about your system. There's no "standard" way of writing a user agent string, so different web browsers use …

  5. What Is a User-Agent in Browser Network Requests? - Medium

    Oct 12, 2025 · 🧠 What Exactly Is a User-Agent? A User-Agent is a small piece of text (a string) sent by your browser to a web server as part of an HTTP request header. It tells the server who the …

  6. What Is a User Agent? A Complete Guide for 2025

    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. It typically includes the browser …

  7. HTTP Headers - User-Agent - GeeksforGeeks

    Sep 30, 2024 · 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 …

  8. What is a User Agent? - Huntress

    Jul 29, 2025 · Ever wonder how your browser or app talks to the website? That’s where user agents come in. A user agent is just a fancy way of saying “a piece of software that acts on …

  9. From a technical point of view, examining the User-Agent string is straightforward and can be done using navigator.userAgent in JavaScript or the HTTP User-Agent header on web servers.

  10. What Is User Agent – Definition, Examples

    Sep 30, 2024 · A user agent is a piece of software that acts on behalf of a user when interacting with websites and other online services. It is most commonly a web browser, but can also be …