The Backend of Tribal Fusion

I was in Drudge report when I saw an advertisement spot occupied by advertisement giant TribalFusion filled with Apache error message instead. The error message was rather interesting.

The requested URL /f.ad was not found on this server.
Apache/2.0.53 (Win32) PHP/5.0.3RC2 Server at a.tribalfusion.com Port 80

It uses Apache 2.x and PHP 5.0.x, so far so good. But then on Windows platform?

No wonder it fails