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 2946 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
Linux 47.35 499 758 980 1018 1057 1104 1130 1178 1240 1255 1268 1304 1325 1360 1397
Windows Server 2003 25.74 97 217 488 508 532 553 564 604 659 689 699 722 744 762 785
unknown 8.24 139 194 171 185 185 175 175 174 195 194 211 219 230 251 266
Windows 2000 7.09 349 352 213 209 203 202 198 198 194 189 187 186 177 174 165
F5 Big-IP 4.66 0 5 80 77 80 98 102 115 111 122 124 130 136 142 156
Solaris 9/10 2.00 16 29 53 51 52 52 56 57 59 49 49 53 54 56 56
Solaris 8 1.33 62 54 41 42 41 42 43 39 36 35 35 31 31 31 31
FreeBSD 1.19 17 25 24 28 30 31 30 31 33 31 32 31 34 33 33
NT4/Windows 98 0.70 48 32 26 25 25 24 21 21 22 20 19 18 16 15 13
NetWare 0.32 2 2 4 5 7 5 6 6 8 10 10 10 10 10 9
NetBSD/OpenBSD 0.31 3 6 6 6 6 6 6 7 8 9 9 9 9 9 9
AIX 0.27 14 12 9 8 8 10 8 9 9 8 8 7 6 6 6
HP-UX 0.19 7 7 5 5 5 5 4 4 5 5 6 6 6 5 4
MacOSX 0.16 5 2 4 3 2 2 3 6 5 4 4 5 5 5 4
OS/390 0.11 0 0 3 3 3 3 3 3 3 3 3 3 3 3 3
AS/400 0.09 4 4 2 2 2 2 2 2 2 2 2 2 2 3 3
BSD/OS 0.08 3 2 2 2 3 3 3 3 2 2 2 2 2 2 2
Solaris 2/7 0.06 18 16 2 2 2 1 1 1 1 1 1 1 1 1 1
SCO UNIX 0.04 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Windows Server 2008 0.03 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
MacOS 0.02 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1
Compaq Tru64 0.01 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0
Windows XP 0.00 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
NetApp NetCache 0.00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0