User Agent String.Com 

User Agent String explained :

Opera 10.10
Opera	Name : Opera
9.80	Opera version -> old version, for compatiblity reasons only. See Version below
X11	X Window System a windowing system for bitmap displays
U	Security values: N for no security U for strong security I for weak security
Linux i686	Operating System: Linux running on a Intel Pentium Pro CPU
en-US	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) en-US = English - United States
rv:1.9.2.3	CVS Branch Tag The version of Gecko being used in the browser
Presto	Layout engine for Opera
2.2.15	Presto version
Version	Browser version
10.10	Version 10.10
First visit:	2010.09.03 12:51
Last visit:	2025.06.28 06:50
All Opera user agent strings