User Agent String.Com 

User Agent String explained :

Opera 10.63
Opera	Name : Opera
9.80	Opera version -> old version, for compatiblity reasons only. See Version below
Windows NT 5.2	Operating System: Windows Server 2003
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
2.6.30	Presto version
Version	Browser version
10.63	Version 10.63
First visit:	2010.12.21 10:37
Last visit:	2019.05.08 09:07
All Opera user agent strings