What 是 my user agent?
Find your browser user agent string 和 see what it says about your browser、rendering engine, operating system、device. You can also paste any other user agent 至 decode it.
Leave it empty 至 see your own browser’s user agent.
关于What 是 my user agent?
Find your browser user agent string 和 see what it says about your browser、rendering engine, operating system、device. You can also paste any other user agent 至 decode it.
属于 SmartCalcy“数据与网络”板块。它在你的浏览器中运行，无需账号，使用你自己的货币和单位（可在页面顶部更改），所给结果仅为估算、仅供参考，因此在依赖结果之前请查阅官方指引。
如何使用What 是 my user agent?
它计算什么，何时使用
Shows your browser’s user agent string 和 explains what it says: the browser 和 version、rendering engine, operating system、device type. You can paste any other user agent string 至 decode it. Useful件support requests、testing、checking what a site sees.
使用步骤
- Open the page 至 see your own user agent.
- Read the browser、engine, operating system、device type.
- 到 解码 another string, paste it into the 箱.
- Press “复制 结果” 至 复制 the user agent.
各输入项的含义
- 解码 a different user agent – Optional. Paste a string from a log 或 a bug report. Leave empty件your own.
如何阅读结果
- User agent string – The full text your browser sends with 每件 request.
- What it says – Browser、engine, operating system、device type.
- Client hints – Brands、mobile flag、platform, shown when your browser supports them.
公式
No calculation. The string 是 matched against patterns件known browsers 和 systems. Edge、Opera、their strings, so they are checked first. 的 Samsung Internet contain “Chrome”
计算示例
A string containing Edg/141 和 Windows NT 10.0 是 decoded as Microsoft Edge on Windows 10 或 11, using the Blink engine.
假设与局限
- Browsers reduce 或 freeze parts the string件privacy、so 窗户 11 still reports 窗户 10、macOS versions 罐 look old.
- Strings 罐 be 修改后 by the user, so they are not proof what a device 是.
常见错误
- Using the user agent alone 至 decide features. Test件the feature instead.
- Believing the version macOS 或 Windows shown, which browsers freeze.
- Treating a bot string as human traffic.
常见问题
What 是 a user agent?
A text string your browser sends 至 every website 至 identify itself、its engine、your operating system.
罐 I 变化 my user agent?
Yes. Developer 个工具 和 extensions 罐 override it.
Why does Chrome say Safari 和 Mozilla?
For historic compatibility. Browsers kept old names so sites would still serve them modern pages.
Why does 窗户 11 显示 as 窗户 10?
Browsers 保留 the version token NT 10.0件第 bo 次.
相关工具
User agent string
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/141.0.7390.37 Safari/537.36
What it says
- Browser
- Chrome 141.0.7390.37
- Engine
- Blink
- Operating system
- Linux
- Device type
- Desktop 或 laptop
Client hints 从 your browser
- Brands
- HeadlessChrome 141, Not?A_Brand 8, Chromium 141
- Mobile
- 否
- Platform
- Linux