User Agent String.Com 

User Agent String explained :

Opera 9.63
Opera	Name : Opera
9.63	Opera version
X11	X Window System a windowing system for bitmap displays
FreeBSD 7.1-RELEASE i386	Operating System: FreeBSD running on a Intel 80386 CPU
U	Security values: N for no security U for strong security I for weak security
en	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) en = English
Presto	Layout engine for Opera
2.1.1	Presto version
First visit:	2009.02.08 04:55
Last visit:	2024.08.03 06:36
All Opera user agent strings