以下是我電腦裡目前有的瀏覽器的User Agent

Firefox:
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130514 Firefox/21.0

IE10:
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)

Opera:
Opera/9.80 (Windows NT 6.1; WOW64) Presto/2.12.388 Version/12.15

Chromium:
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1518.0 Safari/537.36

Chromium甚至還告訴網站我是一個像Gecko一樣的引擎