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.
A user agent is a small piece of data sent by your web browser when accessing a website or application. It identifies the type of browser, device, operating system, and browser version.
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Mozilla/5.0 (Linux; Android 6.0.1; Pixel C) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.117 Safari/537.36 · Mozilla/5.0 (Linux; Android 10; CPH1931 ...
Latest Browser User Agents (Oct 2026) Grab the most up-to-date user agents for Chrome, Safari, Firefox, and Edge. These are essential for web scraping, automated screenshots, and bypassing bot blocks.
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.
What is a user agent string, and how do websites use it to track you? Learn how to inspect and safely change your browser user agent with Gologin.
The User Agent Accessibility Guidelines (UAAG) documents explain how to make user agents accessible to people with disabilities. User agents include browsers, ...
Spoofs & Mimics User-Agent strings. Spoofs & Mimics User-Agent strings. Ever needed to quickly switch between user-agent strings on the fly? Developing a site that needs to work on both mobile browsers and desktop browsers? Sick of some archaic site blocking you because you're not using Netscape 4? The User-Agent Switcher for Chrome is the answer. With this extension, you can quickly and ...
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.
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.
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.
Jul 11, 2025 ... Besides a browser, a user agent could be a bot scraping webpages, a download manager, or another app accessing the Web. Along with each request ...
Every time your browser or an automation script makes an HTTP request, it sends a User-Agent header. This header contains a structured string that informs the server of the type of client making the request. It typically includes the browser name and version, the operating system, the device type, and the rendering engine.
This extension is designed to shield your online privacy and make it super easy to appear as if you're browsing from different devices.
A user agent is a string sent by a web client in an HTTP request header. It can identify the application, operating system and device. Information may be ...
Agents that use the browser. Browser Use Agents finish the task. Browser Infrastructure is the simple cloud browser for your own agents. ... $1 free credit for ...
Usage example: You can alter your user-agent string to indicate you?re on a mobile device if you prefer seeing mobile versions of sites so they load quicker. -- This extension allows you to spoof your browser "user-agent" string to a custom designation, making it impossible for websites to know specific details about your browsing arrangement.
The What is My User Agent tool is an absolutely free-to-use dev utility on BetterBugs.io. This tool instantly reads the User-Agent header your browser is ...
A product that can load arbitrary content from the public web is a user agent. A person can use many different user agents in their day-to-day life. In other contexts, the term "user agent" is used to refer to software entities that help users accomplish tasks.
Apr 13, 2024 ... For example, a user agent string might look like this: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ ...
Overriding the user agent string changes how the browser identifies itself to web servers.
Details · Version. 0.7.2 · Updated. September 30, 2026 · Flag concern · Offered by. rynu.smith · Size. 831KiB · Languages. 3 languages. English, русский, 中文（ ...
The user agent string explained in under a minute (most devs get this wrong)
>>> from user_agent import generate_user_agent, generate_navigator >>> from pprint import pprint >>> generate_user_agent() 'Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.3; Win64; x64)' >>> generate_user_agent(os=('mac', 'linux')) 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:36.0) Gecko/20100101 Firefox/36.0' >>> pprint(generate_navigator()) {'app_code_name': 'Mozilla', 'app_name': 'Netscape', 'appversion': '5.0', 'name': 'firefox', 'os': 'linux', 'oscpu': 'Linux i686 on x86_64', 'platform': 'Linux i686 on x86_64', 'user_agent': 'Mozilla/5.0 (X11; Ubuntu; Linux i686 on x86_64; rv:41.0) Gecko/20100101 Firefox/41.0', 'version': '41.0'} >>> pprint(generate_navigator_js()) {'appCodeName': 'Mozilla', 'appName': 'Netscape', 'appVersion': '38.0', 'platform': 'MacIntel', 'userAgent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:38.0) Gecko/20100101 Firefox/38.0'}
Library to build content for User-Agent HTTP header
Open this URL in a browser tab and search for general.useragent.overridepreference preference. Set the exact user-agent string as the one you have set for this ...
A user agent is a small text description of your device that is sent with every web request. Websites can detect the browser you’re using and serve different content - this is why iPhone and Android users see special mobile websites when they ...
A User-Agent refers to the software used on the client side to access servers based on specific protocols.
Sep 28, 2016 ... The contents of the user agent field vary from browser to browser. Each browser has its own, distinctive user agent. Essentially, a user agent ...
Apr 17, 2013 ... How to read useragent details · Syntax. User-Agent: <product> / <product-version> <comment> Common format for web browsers: User-Agent: Mozilla/ ...
Many sites have a "mobile" and "desktop" version and use the user-agent string to decide which to present.
How To Change Your Browser User-Agent String to bypass restrictions and protect your privacy.☕️ SUPPORT ► Buy me a coffee: https://buymeacoffee.com/kmdtechTh...
When a scraper gets blocked, changing the user agent is the first thing most people try. Years ago that was real stealth advice. In 2026 it barely moves the ...
Every bot — and every browser — identifies itself with something called a user agent.When a crawler or visitor requests a page, it sends a user agent string ...
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In this video, I look at the difference between single-user agents like OpenAI and systems that people are building for themselves versus multi-user agents, ...