User Agent String.Com 

User Agent String explained :

Opera 9.21
Opera	Name : Opera
9.21	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
de	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) de = German
Last visit:	2018.07.29 01:21
All Opera user agent strings