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 8843 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 47.70 1390 2073 2796 2868 2978 3104 3277 3415 3637 3740 3835 3953 4070 4193 4328
Windows Server 2003 21.02 171 429 1186 1157 1199 1277 1346 1499 1637 1689 1726 1786 1860 1848 1927
unknown 12.03 318 591 706 824 833 767 783 784 923 946 972 1003 1010 1117 1070
Windows 2000 6.99 1082 1147 603 584 581 570 557 566 588 563 557 536 528 504 495
FreeBSD 2.62 84 120 177 171 181 186 193 208 202 206 210 211 217 223 224
Solaris 8 2.51 245 258 217 217 216 213 213 215 212 198 196 191 187 186 182
F5 Big-IP 2.48 0 4 108 104 106 132 135 166 174 176 193 210 232 244 261
Solaris 9/10 1.70 9 57 106 106 106 107 113 118 127 136 144 151 145 151 149
Solaris 2/7 0.93 117 90 94 94 89 91 84 80 74 70 65 64 68 68 70
NT4/Windows 98 0.81 293 166 101 96 83 81 68 64 63 58 57 57 53 49 46
MacOSX 0.43 27 27 30 29 31 30 30 31 35 37 35 38 33 35 38
AIX 0.17 93 48 17 17 14 13 14 12 12 14 14 12 10 11 9
HP-UX 0.16 16 16 15 14 14 14 11 11 12 11 11 14 13 13 12
AS/400 0.09 9 8 9 8 8 7 8 7 7 6 6 6 6 7 6
NetWare 0.08 5 8 8 7 7 7 7 7 6 6 6 6 6 6 4
NetBSD/OpenBSD 0.07 2 2 1 1 2 3 3 3 5 4 7 7 7 7 7
NetApp NetCache 0.05 4 3 5 5 5 5 3 3 3 3 4 4 4 4 4
SCO UNIX 0.05 10 5 5 5 5 5 5 4 4 4 4 4 3 3 3
OS/390 0.03 0 0 3 3 3 3 3 1 3 3 3 1 3 1 2
MacOS 0.03 8 7 3 3 3 3 3 3 4 4 2 3 2 2 2
BSD/OS 0.02 41 18 3 3 3 3 3 3 2 2 0 0 0 1 1
Compaq Tru64 0.02 4 2 3 3 3 2 2 2 2 2 2 2 1 1 1
Windows XP 0.01 0 0 0 0 0 0 0 0 1 2 2 1 1 2 1
OpenVMS 0.01 0 0 0 0 1 1 0 1 1 1 1 0 1 0 1
IRIX 0.00 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
NT3/Windows 95 0.00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0