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.
28 Oct 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 ...User-Agent reduction · Pre-user-agent reduction...
A user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content.
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.
A user agent is a small piece of text sent by web browsers or automation scripts in HTTP requests to identify the client's software, browser version, and operating system to the web server. What is a user agent header? The user-agent header is the specific HTTP request header that carries the user agent string from the client to the web server.
Useragents.me provides a self-updating list of user agents seen on the web across all device types, operating systems, and browsers. You can view, download, or get the list as JSON or TSV, and see the relative share of each user agent.
This site provides various user agent lists and technical information about them. The information is constantly updated and conveniently structured.
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 an user-agent? The User-Agent request-header field contains information about the user agent originating the request. This is for statistical purposes, the tracing of protocol violations, and automated recognition of user agents for the sake of tailoring responses to avoid particular user agent limitations.
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.
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.
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 ...
Jun 11, 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.
22 Oct 2025 · When your service calls GOV.UK One Login directly it is important to ensure your HTTP client sets a User-Agent header in all HTTP requests.
29 Jul 2025 · A user agent is just a fancy way of saying “a piece of software that acts on your behalf to communicate with websites.” Think of it as your ...
The user agent string can be accessed with JavaScript on the client side using the navigator.userAgent property. ... A typical user agent string ...
User Agent strings come in all shapes and sizes, and the number of unique user agents is growing all the time. ... user agent searches, including ...
User agents include browsers, browser extensions, media players, readers and other applications that render web content. Some accessibility needs ...
... User Agent Accessibility Guidelines 1.0
User agents SHOULD keep these strings short and to the point, but servers MUST accept arbitrary values for each, as they are all values constructed ...
This page has been moved to " Policy:User-Agent policy " on Wikimedia Foundation Governance Wiki where you can provide translations and feedback on ...
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 ...
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, ...