測試，使用 curl header:
curl http://line.me/R/shop/detail/8072
傳回結果：
<html> <head><title>302 Found</title></head> <body bgcolor="white"> <center><h1>302 Found</h1></center> <hr><center>nginx</center> </body> </html>
測試 iOS 平台 Header
curl -v -H 'User-Agent: Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10' http://line.me/R/shop/detail/8072
執行結果：
<!DOCTYPE html> <html dir="ltr"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1"> <title>LINE</title> <link rel="stylesheet" href="//scdn.line-apps.com/n/line_urlscheme/css/line_urlscheme_1464238694.css"> <script src="//scdn.line-apps.com/n/line_urlscheme/js/lc.line.scheme_1464238694.js"></script> </head> <body> <!--CONTENTS-AREA--> <div class="LyContents" role="main"> <section class="MdCMN01Cont"> <p class="mdCMN01Desc"> Open the LINE app to continue. </p> <div class="mdCMN01Img"><img src="//scdn.line-apps.com/n/line_urlscheme/img/img_line_160830.png" alt="LINE" width="75" height="75"></div> <div class="mdCMN01Btn"> <button type="button" class="MdBtn03Gn01" id="jsLaunchApp" data-href="line://shop/detail/8072"> Open LINE App </button> <button type="button" class="MdBtn03Gr01" id="jsInstallApp" data-href="itms-apps://itunes.apple.com/app/line-for-ipad/id913855602"> Download LINE App </button> </div> </section> <!--/LyContents--></div> <!--/CONTENTS-AREA--> <!--/SCRIPT--> </body> </html>
測試 Android 平台 Header:
curl -H 'User-Agent: Mozilla/5.0 (Linux; U; Android 4.1.1; en-gb; Build/KLP) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Safari/534.30' http://line.me/R/shop/detail/8072
取得結果：
<!DOCTYPE html> <html dir="ltr"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1"> <title>LINE</title> <link rel="stylesheet" href="//scdn.line-apps.com/n/line_urlscheme/css/line_urlscheme_1464238694.css"> <script src="//scdn.line-apps.com/n/line_urlscheme/js/lc.line.scheme_1464238694.js"></script> </head> <body> <!--CONTENTS-AREA--> <div class="LyContents" role="main"> <section class="MdCMN01Cont"> <p class="mdCMN01Desc"> Open the LINE app to continue. </p> <div class="mdCMN01Img"><img src="//scdn.line-apps.com/n/line_urlscheme/img/img_line_160830.png" alt="LINE" width="75" height="75"></div> <div class="mdCMN01Btn"> <button type="button" class="MdBtn03Gn01" id="jsLaunchApp" data-href="intent://shop/detail/8072#Intent;scheme=line;action=android.intent.action.VIEW;category=android.intent.category.BROWSABLE;package=jp.naver.line.android;end"> Open LINE App </button> <button type="button" class="MdBtn03Gr01" id="jsInstallApp" data-href="market://details?id=jp.naver.line.android"> Download LINE App </button> </div> </section> <!--/LyContents--></div> <!--/CONTENTS-AREA--> <!--/SCRIPT--> </body> </html>
Mobile Browser會將所有與 User Agent(簡稱 UA)相關的資訊包含在User Agent String裡（平台、OS、瀏覽器、版本等），除了可以使用javascript偵測User Agent String裡的關鍵字，也可以在Web Server 上處理。
熱門行動的裝置的User Agent String:
iPad:
Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10
iPhone:
Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A341 Safari/528.16
Chrome for Android Phone:
Mozilla/5.0 (Linux; <Android Version>; <Build Tag etc.>) AppleWebKit/<WebKit Rev> (KHTML, like Gecko) Chrome/<Chrome Rev> Mobile Safari/<WebKit Rev>
Chrome for Android Tablet UA:
Mozilla/5.0 (Linux; <Android Version>; <Build Tag etc.>) AppleWebKit/<WebKit Rev>(KHTML, like Gecko) Chrome/<Chrome Rev> Safari/<WebKit Rev>
- Phone pattern:
'Android' + 'Chrome/[.0-9]* Mobile' - Tablet pattern:
'Android' + 'Chrome/[.0-9]* (?!Mobile)'
電腦版 Chrome 41.0.2228.0 在 Windows 的 User Agent string:
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36
電腦版 Chrome 在 Mac OS X 的 User Agent string:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
相關文章：History of the browser user-agent string
為什麼瀏覽器 user-agent string 總是包含 Mozilla/5.0 ?
http://webaim.org/blog/user-agent-string-history/
下指令：
curl -v -H ‘User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36’ http://line.me/R/shop/detail/8072
執行結果：
< HTTP/1.1 302 Moved Temporarily < Server: nginx < Date: Thu, 02 Mar 2017 20:23:57 GMT < Content-Type: text/html < Content-Length: 154 < Connection: keep-alive < Location: http://line.me < Cache-Control: no-cache
網址移動到 http://line.me , 應該是不支援的意思。
結論：
- Android系統的行動裝置幾乎都有“Android”字眼，且多搭配webkit引擎的瀏覽器，所以可用這兩者作為關鍵字。
- 而Apple產品的User Agent String幾乎都包含iPhone字眼。