User Agent String.Com 

User Agent String explained :

Netscape 4.76
Mozilla	MozillaProductSlice. Claims to be a Mozilla based user agent, which is only true for Gecko browsers like Firefox and Netscape. For all other user agents it means 'Mozilla-compatible'. In modern browsers, this is only used for historical reasons. It has no real meaning anymore
4.76	Browser version
en	Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) en = English
X11	X Window System a windowing system for bitmap displays
U	Security values: N for no security U for strong security I for weak security
SunOS 5.8 i86pc	Operating System: SunOS version 5.8 Solaris version 8 running on a i86pc
Last visit:	2023.10.27 05:51
All Netscape user agent strings