According to Netcraft, it looks like a lot of people jumped ship from IIS to Apache. Apache gained 2.8% of the market, while MS/IIS lost 2.44%. Here’s why:
Apache has a significant percentage gain this month as register.com, a leading domain registrar with a domain parking system serving responses for over one million domains eliminated its Windows front end, and reverted to Linux and Apache which it ran previously. Barely weeks ago its largest rival, Network Solutions made a similar switch from Microsoft-IIS back to SunOne, nee Netscape-Enterprise, for its own domain parking system.