At present Microsoft is the only member of the Fortune 100 hosting its main public site on Windows 2003 Server, while Tesco Stores is the lone FTSE 100 company on Win2003. Recent data from our SSL Survey suggests that many e-commerce operations previously on WinNT4 are now shifting to to Windows 2003 Server.

The bulk of machines serving pages.ebay.com continue to run on Windows NT4. The auctioneer didn’t completely forego Windows 2000, as many of its specialty sites run on Win2K, while some overseas eBay editions (including Hong Kong and Singapore) are served on Linux.

Netcraft monitors over 23K hostnames for the top 1.5K Enterprises (Fortune 1K, FT European 500, FT Asia Pacific, FT Japan, FT Eastern Europe) on a monthly basis, providing details of web technology. Contact us for details of the commercial dataset.