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 4508 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 58.32 348 987 2028 2054 2120 2131 2202 2309 2493 2349 2402 2447 2526 2575 2645
Linux 17.19 341 449 561 572 591 597 613 635 690 708 714 725 752 773 796
unknown 8.32 88 177 206 232 238 242 239 237 293 323 341 357 387 409 437
Windows 2000 7.56 796 837 355 343 330 325 319 314 325 310 308 303 294 280 270
FreeBSD 4.28 84 146 169 156 161 161 165 165 172 176 179 180 178 182 186
Solaris 8 0.98 50 53 50 50 48 48 45 43 42 39 40 40 37 38 35
Solaris 9/10 0.59 11 17 18 18 18 19 21 26 27 26 28 26 26 25 25
NetWare 0.52 11 12 22 22 22 24 24 22 23 23 23 21 21 22 20
F5 Big-IP 0.50 0 0 12 14 15 15 16 18 16 18 25 24 23 23 25
AIX 0.38 16 15 13 12 16 16 16 16 16 16 16 17 17 15 15
NT4/Windows 98 0.37 60 39 21 20 19 17 16 16 16 15 15 14 14 12 12
MacOSX 0.26 1 7 3 4 3 4 6 10 10 11 11 13 12 13 14
OS/390 0.17 0 0 7 7 7 7 7 7 7 7 7 7 7 7 7
NetBSD/OpenBSD 0.16 7 5 5 5 5 5 6 7 8 8 7 8 6 6 6
AS/400 0.12 25 14 6 4 4 5 5 4 3 5 4 4 5 5 5
HP-UX 0.10 7 9 3 5 5 5 4 4 3 3 4 4 4 4 4
Compaq Tru64 0.06 5 3 2 2 2 2 2 3 3 2 2 2 2 3 2
Solaris 2/7 0.05 11 9 4 4 4 4 4 2 2 1 1 1 1 1 1
Windows XP 0.02 0 0 0 0 1 1 0 1 1 1 1 1 1 1 1
IRIX 0.02 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
OS/2 0.02 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
BSD/OS 0.00 2 0 0 1 0 0 1 0 0 0 0 0 0 0 0
Windows Server 2008 0.00 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0