User Agent String.Com 

User Agent String explained :

Opera 10.54
Opera	Name : Opera
9.80	Opera version -> old version, for compatiblity reasons only. See Version below
X11	X Window System a windowing system for bitmap displays
Linux i686	Operating System: Linux running on a Intel Pentium Pro CPU
U	Security values: N for no security U for strong security I for weak security
it	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) it = Italian
Presto	Layout engine for Opera
2.5.24	Presto version
Version	Browser version
10.54	Version 10.54
First visit:	2010.05.26 10:17
Last visit:	2019.03.17 04:45
All Opera user agent strings