Browser Rendering Engines 2011

There are currently several main layout engines

• Gecko (and Gecko like Firefox)
• Webkit (Safari, Chrome, Android)
• Trident (IE)

• Presto (Opera) Browser Rendering Engines

• http://en.wikipedia.org/wiki/Comparison_of_layout_engines
• http://library.forum.nokia.com/index.jsp?topic=/Web_Developers_Library/GUID-D4A33375-8791-4BE7-970E-B839189409A5.html
• http://hygen.net/blog/web-design/web-browser-layout-engines-explained.html

Krestel Rendering Engine http://www.elementsoftware.co.uk/kestrel/

User agent strings for Nokia Phones The user agent strings for the tested devices are listed below. Nokia N97 (version 2.0.019, web browser version BrowserNG/7.1.18124)
Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/20.0.019; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.18124

Nokia N97 Mini device (version 11.0.045, web browser version BrowserNG/7.1.4)
Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-4/11.0.045; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.4

Nokia X6 device (version 11.0.077, web browser version Safari/413)
Mozilla/5.0 (SymbianOS/9.4; U: Series60/5.0 NokiaX6-00/11.0.077; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/413 (KHTML, like Gecko) Safari/413

Nokia N79 device (version 10.046, web browser version Safari/413)
Mozilla/5.0 (SymbianOS/9.3; U; Series60/3.2 NokiaN79-1/10.046; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/413 (KHTML, like Gecko) Safari/413

Nokia 5800 XpressMusic device (version 11.0.008, web browser version Safari/413)
Mozilla/5.0 (SymbianOS/9.4; U; Series60/5.0 Nokia5800d-1/11.0.008; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/413 (KHTML, like Gecko) Safari/413

iPhone (version 3.1.2 (7D11))
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

Nokia N900 (version 2.2009.51-1)
Mozilla/5.0 (X11; U; Linux armv7l; en-GB; rv:1.9.2a1pre) Gecko/20091012 Firefox/3.5 Maemo Browser 1.5.2.1 RX-51 N900

Android (firmware version 1.5, baseband version 62.505.20.17H_2.22.19.261)
Mozilla/5.0 (Linux ; U; Android 1.5; en-us; Android Dev Phone 1 Build/CRC1) AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2 Mobile Safari/525.20.1