What is the server OS market share?

September 6, 2009 10:35 PM

Where can I find estimates of server operating system market shares? To be concrete, I'd like to know what percentage of web servers, either by absolute numbers or popularity, use Linux, Windows, etc.
posted by espertus to computers & internet (3 comments total)

netcraft used to be reliable. I don't know if they still are.
posted by rdr at 10:49 PM on September 6

Tool sharpening tip: in addition to defining "server" carefully, you'll also need to differentiate between public-facing Internet web servers and closed or intranet ones. Windows will have a disproportionately high share of the latter.
posted by rokusan at 11:00 PM on September 6

The netcraft survey gives the server program (e.g., Apache) but not the OS. I think Apache has been ported to Windows, so I don't think I can assume all of the Apache servers are running under Linux.
posted by espertus at 7:41 AM on September 7