useragent插件

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whatmyuseragent.com

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 system you are using, an...

www.whatismybrowser.com

What is my User Agent? - WhatIsMyBrowser.com

Jun 25, 2024 · Every request your web browser makes includes your User Agent; find out what your browser is sending and what this identifies your system as.

developer.mozilla.org

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

Oct 28, 2025 · To mitigate such concerns, supporting browsers provide a reduced set of information in their User-Agent header, and in related API features such as Navigator.userAgent, Navigator.appVersion, and Navigat...

webbrowsertools.com

What is my User Agent - WebBrowserTools

Detect the user-agent string that web servers and client codes see when you are visiting a website. Usually, this string is used by the website owner to facilitate the end user experience, however, it can also be used...

en.wikipedia.org

User agent - Wikipedia

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,...

whatismyuseragent.com

What is my user agent

What is my user agent? Your user agent is… No silly, I’m Mozzarrella Furryfox, when it comes to “user agents” you're thinking of my less cool brother, Mozilla Firefox. A user agent is a string that web browsers and ot...

explore.whatismybrowser.com

Parse a user agent - WhatIsMyBrowser.com

Every time your web browser makes a request to a website, it sends a HTTP Header called the " User Agent ". The User Agent string contains information about your web browser name, operating system, device type and lot...

www.geeksforgeeks.org

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 client making the request. Every ...

developer.mozilla.org

Navigator: userAgent property - Web APIs | MDN

Oct 28, 2025 · The userAgent property provides the current browser's UA string. The UA string is built on a formal structure, which can be decomposed into several pieces of information. The browser also provides the U...