User Agent String.Com 

User Agent String explained :

Opera 9.51
Opera	Name : Opera
9.51	Opera version
Windows NT 5.1	Operating System: Windows XP
U	Security values: N for no security U for strong security I for weak security
nn	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) nn = Norwegian Nynorsk
Last visit:	2022.03.17 09:40
All Opera user agent strings