User Agent String explained :
 Opera 9.63 | |
|---|---|
| Opera | Name : Opera |
| 9.63 | Opera version |
| X11 | X Window System a windowing system for bitmap displays |
| Linux x86_64 | Operating System:  Linuxrunning on a Intel CPU running on a 64 bit processor |
| U | Security values:
|
| cs | Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) cs =  Czech |
| Presto | Layout engine for Opera |
| 2.1.1 | Presto version |
| First visit: | 2008.12.26 01:36 |
| Last visit: | 2025.08.21 05:57 |
All Opera user agent strings | |