![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgeOVFN4RkVsQqE0ex3u0ujV7aRyYlQ5DKLP_t9G6D_XnqXj3CE4RPJN1Vs4vgrpLGr4g34__mFH9ciq7BLG5NzLfry4_XarhHS6FAAxMjRoAfVkoyA2QTW6s_PElFeWSfgKq3aYg/s400/Snapshot+2008-05-31+10-36-34.png)
I know that there is a small, and vocal, community of OS/2 users out there, and that IBM has been trying to prod them gently into moving on, but I was highly skeptical that someone might be browsing my site with such an ancient operating system. Then I looked at the browser string.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEif2Cn8P5wmbZ_8c7uJsmTd5qSD30U09GKwQv5LxHnuyVwfoutRZX8Vtmiz7UlFBCXPtg5UFNM7d3O9TfnAby9AtAqa2PHN71t7VvOKzDGbJmdX1sYmWBUGt7dL0eRv6nuSzzKEew/s400/Snapshot+2008-05-31+10-41-35.png)
Apparently SiteMeter parsed the rendering engine version information, found "OS/2" in the string and concluded that must be the OS, even though the platform in parentheses is X11/Linux.
Admittedly it must be tough to write heuristic algorithms that can interpret these strings, given that there isn't a formal standard for them. Heck , even Microsoft's Internet Explorer 7 still uses "Mozilla" in its identifying string "for historical reasons" that date back over a decade.