各式瀏覽器於各式平台上的使用者代理字串（User Agent）
因為Microsoft的Internet Explorer瀏覽器的HTTP標頭，萬年不支援Unicode編碼格式的爛設計下，以至於到了Windows 10時代的Microsoft Edge，後端程式設計師依然要為這個爛設計去進行例外的處理，真的有必要向下相容成這樣嗎？個人覺得都已經拋棄了IE這個名字，就應該沒有什麼好顧忌了才是，唉...
總而言之，這一篇文章名為討論User Agent，因此我把我實驗出來各平台之各瀏覽器的User Agent數據寫在這裡，有需要的人自行取用。要辨識是否為微軟品牌，大家應該不難挑出規則才是。
值得注意的是，Microsoft Edge的Request.Browser.Browser回傳值竟然是「Chrome」，我的下巴差一點掉下來。
Lists of User agent of Browsers on Operation Systems
| Browser Name | Version | System.Web.HttpContext.Current | Windows XP | Windows 7 | Windows 8 | Windows 8.1 | Windows 10 |
|---|---|---|---|---|---|---|---|
| Internet Explorer | 6 | Request.Browser.Browser | IE | ||||
| Internet Explorer | 6 | Request.UserAgent | Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) | ||||
| Internet Explorer | 7 | Request.Browser.Browser | IE | ||||
| Internet Explorer | 7 | Request.UserAgent | Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) | ||||
| Internet Explorer | 8 | Request.Browser.Browser | IE | ||||
| Internet Explorer | 8 | Request.UserAgent | Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729) | ||||
| Internet Explorer | 9 | Request.Browser.Browser | IE | ||||
| Internet Explorer | 9 | Request.UserAgent | Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0) | ||||
| Internet Explorer | 10 | Request.Browser.Browser | IE | IE | |||
| Internet Explorer | 10 | Request.UserAgent | Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0) | Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0) | |||
| Internet Explorer | 11 | Request.Browser.Browser | Mozilla | Mozilla | InternetExplorer | ||
| Internet Explorer | 11 | Request.UserAgent | Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rev:11.0) like Gecko | Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rev:11.0) like Gecko | Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko | ||
| Microsoft Edge | 20 | Request.Browser.Browser | Chrome | ||||
| Microsoft Edge | 20 | Request.UserAgent | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240 | ||||
| Mozilla FireFox | 37 | Request.Browser.Browser | Firefox | Firefox | Firefox | Firefox | Firefox |
| Mozilla FireFox | 37 | Request.UserAgent | Mozilla/5.0 (Windows NT 5.2; rv:37.0) Gecko/20100101 FireFox/37.0 | Mozilla/5.0 (Windows NT 6.0; rv:37.0) Gecko/20100101 FireFox/37.0 | Mozilla/5.0 (Windows NT 6.2; WOW64; rv:37.0) Gecko/20100101 FireFox/37.0 | Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 FireFox/37.0 | Mozilla/5.0 (Windows NT 10.0; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0 |
| Google Chrome | 42 | Request.Browser.Browser | AppleMAC-Safari | AppleMAC-Safari | AppleMAC-Safari | AppleMAC-Safari | 未測試 |
| Google Chrome | 42 | Request.UserAgent | Mozilla/5.0 (Windows NT 5.2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 | Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 | Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 | Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 | 未測試 |
| Opera | 12.16 | Request.Browser.Browser | Opera | Opera | Opera | Opera | 未測試 |
| Opera | 12.16 | Request.UserAgent | Opera/9.80 (Windows NT 5.2) Presto/2.12.388 Version/12.16 | Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.16 | Opera/9.80 (Windows NT 6.2; WOW64) Presto/2.12.388 Version/12.16 | Opera/9.80 (Windows NT 6.2; WOW64) Presto/2.12.388 Version/12.16 | 未測試 |