User Agent String.Com 

User Agent String explained :

Opera 10.00
Opera	Name : Opera
10.00	Opera version
Windows NT 5.0	Operating System: Windows 2000
U	Security values: N for no security U for strong security I for weak security
ru	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) ru = Russian
Presto	Layout engine for Opera
2.2.0	Presto version
First visit:	2009.03.23 04:48
Last visit:	2018.07.28 06:57
All Opera user agent strings