Well, all I could find is that it's hosted and served by BSOCOM Webcache (HTTP header); it SEEMS (from a few hints, but no direct proof) that the Web server at least runs on Linux.
We can be pretty sure that it's not Windows-based, though.
OS-X server. that would be pretty funny ... esp considering all the vitriol aimed at apple products and its users by fans of other OS's in the news areas here. you dont like osx? well youre posting your comments with it right ... now.
BSO Communications does seem to own an ip block out of Paris and those French do "think different".
a bit off topic but when i last visited i loved how Parisians would stand directly in front of "no smoking" signs and, you know, smoke. and if you looked at them, then at the sign, then back at them the most theyd do is kinda shrug one shoulder as if to say, what? made me smile.
Even Microsoft's Hotmail ran on FreeBSD for many years. Microsoft waited until the release of a newer Windows Server product before it decided to migrate. Not a good example of 'eating your own dogfood'.
------------------------------...man will occasionally stumble over the truth, but usually manages to pick himself up, walk over or around it, and carry on.
Reply to sub mesa
MS Hotmail ran on FreeBSD for years, because Hotmail was built on FreeBSD long before MS bought it.
At the time, all MS had as a server OS was... NT 4.0.
Remember what happened to the first 'get the FUD about Linux' website MS started? When it was found out that it actually ran Apache on a debian box, they migrated. 6 hours later, the site was down due to 'unrecoverable OS error'.