Operating System Software used at Sites in January 2008

This analysis relates to those sites found in the survey where the common name in the certificate matched the hostname, and the certificate's digital signature was not detected as being self-signed.

Responses were obtained from 3010 sites, with the following distribution of operating system software.

Other views of this data are on separate pages:

The following pie chart shows the moving average shares over time.

The next graph shows the actual development of shares over time.

Market Shares by Operating System Version to January 2008

Operating System Moving
Avg. %
2005 2006 2007 2008
Jan Jan Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan
Windows Server 2003 44.83 157 351 777 814 854 892 930 972 1150 1171 1217 1259 1305 1343 1397
Linux 29.40 312 450 565 585 600 621 643 661 759 774 787 816 835 858 868
Windows 2000 8.38 467 434 235 234 228 229 219 214 225 217 212 214 205 204 201
unknown 7.52 55 110 125 140 129 135 132 147 168 175 188 205 226 244 252
FreeBSD 2.86 49 51 56 63 64 63 64 70 75 74 76 79 82 77 84
F5 Big-IP 2.47 0 1 35 34 38 42 45 58 62 67 69 68 75 80 82
Solaris 9/10 1.56 10 17 23 23 28 29 30 36 37 39 42 43 45 50 51
Solaris 8 1.48 50 46 43 41 37 40 39 41 38 42 37 39 36 36 37
NT4/Windows 98 0.27 35 16 8 8 8 8 8 8 6 6 6 7 7 6 6
AS/400 0.27 7 8 6 6 6 6 6 6 6 6 6 7 8 8 9
NetBSD/OpenBSD 0.27 4 4 7 6 7 7 6 6 7 7 8 8 7 7 7
Solaris 2/7 0.20 12 7 5 5 5 5 5 4 5 5 5 5 5 5 5
NetWare 0.16 2 3 6 6 6 6 4 4 4 4 4 4 4 4 4
OS/390 0.11 0 0 4 3 3 3 3 3 3 3 3 3 3 3 3
MacOSX 0.08 2 4 1 1 2 2 3 3 2 2 2 2 3 2 2
AIX 0.06 5 6 3 1 1 1 1 2 2 2 2 1 1 1 1
Windows XP 0.04 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
HP-UX 0.01 2 3 2 2 1 1 1 0 0 0 0 0 0 0 0
BSD/OS 0.00 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MacOS 0.00 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0