SmartCalcy.毎日の計算にすぐ答え
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データとネットワーク

Whatはmy user agent?です

Find your browser user agent stringとsee what it says about your browser、rendering engine, operating system、device. You can also paste any other user agent〜decode it.

Leave it empty〜see your own browser’s user agent.

Whatはmy user agent?ですについて

Find your browser user agent stringとsee what it says about your browser、rendering engine, operating system、device. You can also paste any other user agent〜decode it.

SmartCalcyの「データとネットワーク」セクションの一部です。アカウント不要でブラウザ上で動作し、お使いの通貨と単位(ページ上部で変更可)を使います。結果は参考用の目安なので、頼る前に公的な情報をご確認ください。

Whatはmy user agent?ですの使い方

何を計算するか、いつ使うか

Shows your browser’s user agent stringとexplains what it says: the browserとversion、rendering engine, operating system、device type. You can paste any other user agent string〜decode it. Useful個でsupport requests、testing、checking what a site sees.

使い方の手順

  1. Open the page〜see your own user agent.
  2. Read the browser、engine, operating system、device type.
  3. 終了 デコード another string, paste it into the 箱.
  4. Press “コピー 結果”〜コピー the user agent.

各入力項目の意味

  • デコード a different user agent – Optional. Paste a string from a logまたはa bug report. Leave empty個でyour own.

結果の読み方

  • User agent string – The full text your browser sends with 1個あたり request.
  • What it says – Browser、engine, operating system、device type.
  • Client hints – Brands、mobile flag、platform, shown when your browser supports them.

計算式

No calculation. The stringはmatched against patternsです個でknown browsersとsystems. Edge、Opera、their strings, so they are checked first.のSamsung Internet contain “Chrome”

計算例

A string containing Edg/141とWindows NT 10.0はdecoded as Microsoft Edge on Windows 10または11, using the Blink engine.です

前提と限界

  • the string Browsers reduceまたはfreeze parts個でprivacy、so 窓 11 still reports 窓 10、macOS versions 缶 look old.
  • what a deviceは. Strings 缶 be 変更後 by the user, so they are not proof

よくある間違い

  • Using the user agent alone〜decide features. Test個でthe feature instead.
  • macOSまたはWindows shown, which browsers freeze. Believing the version
  • Treating a bot string as human traffic.

よくある質問

Whatはa user agent?です

A text string your browser sends〜every website〜identify itself、its engine、your operating system.

缶 I 変動 my user agent?

Yes. Developerツールとextensions 缶 override it.

Why does Chrome say SafariとMozilla?

For historic compatibility. Browsers kept old names so sites would still serve them modern pages.

Why does 窓 11 表示内容 as 窓 10?

Browsers 継続 the version token NT 10.0個でbo乗.

関連ツール

Your user agent
Chrome 141.0.7390.37 on Linux
Desktopまたはlaptop

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またはlaptop

Client hints 開始 your browser

Brands
HeadlessChrome 141, Not?A_Brand 8, Chromium 141
Mobile
いいえ
Platform
Linux
the user agent Some browsers shortenまたはfreeze parts個でprivacy, so versions 缶 look older than they are.