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Survey Data Mining: Home | FAQ | Archive | Glossary |
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Web server surveys have been around for a long time. One of the problems with running a survey is how to produce meaningful results given the number of choices with the collection and reporting methodologies. Some examples:
This particular report addresses this in part by counting unique IP addresses in an attempt at answering the question of how many installations of a particular server might exist. By using the IP address as a proxy for the physical hardware on which a server is running, we still need to be aware that it is not a perfect 1 to 1 mapping:
While not a perfect solution, we feel that counting web servers by IP will give a much closer view of the number of server installs for a given technology.
Click any server to see detailed graphs and histories.
Server | February 2005 Count |
February 2005 % |
January 2005 Count |
January 2005 % |
Growth % |
Apache | 1,426,548 | 55.04 | 1,419,871 | 55.02 | 0.05 |
Microsoft-IIS | 848,716 | 32.75 | 846,358 | 32.80 | -0.14 |
null | 73,471 | 2.83 | 70,772 | 2.74 | 3.38 |
Rapidsite | 72,932 | 2.81 | 73,969 | 2.87 | -1.82 |
Netscape-Enterprise | 21,988 | 0.85 | 22,496 | 0.87 | -2.67 |
Lotus-Domino | 15,711 | 0.61 | 15,725 | 0.61 | -0.51 |
Apache-AdvancedExtranetServer | 10,445 | 0.40 | 10,387 | 0.40 | 0.13 |
A | 9,987 | 0.39 | 9,895 | 0.38 | 0.50 |
Zeus | 5,650 | 0.22 | 5,663 | 0.22 | -0.65 |
IdeaWebServer | 5,518 | 0.21 | 5,407 | 0.21 | 1.62 |
Apache-Coyote | 4,642 | 0.18 | 4,316 | 0.17 | 7.10 |
WebSTAR | 3,900 | 0.15 | 4,036 | 0.16 | -3.78 |
WN | 3,729 | 0.14 | 3,819 | 0.15 | -2.77 |
Ipswitch-IMail | 3,609 | 0.14 | 3,577 | 0.14 | 0.47 |
WebSitePro | 3,517 | 0.14 | 3,583 | 0.14 | -2.26 |
IBM_HTTP_SERVER | 3,059 | 0.12 | 3,027 | 0.12 | 0.63 |
Zope | 2,889 | 0.11 | 2,838 | 0.11 | 1.37 |
WebSite | 2,558 | 0.10 | 2,636 | 0.10 | -3.37 |
Sun-ONE-Web-Server | 2,516 | 0.10 | 2,379 | 0.09 | 5.31 |
Stronghold | 2,508 | 0.10 | 2,631 | 0.10 | -5.08 |
IBM_HTTP_Server | 2,130 | 0.08 | 2,153 | 0.08 | -1.49 |
WebServer | 2,006 | 0.08 | 1,949 | 0.08 | 2.49 |
Oracle | 2,003 | 0.08 | 2,020 | 0.08 | -1.26 |
FileMakerPro | 1,998 | 0.08 | 1,995 | 0.08 | -0.27 |
NetWare-Enterprise-Web-Server | 1,930 | 0.07 | 1,982 | 0.08 | -3.03 |
Resin | 1,874 | 0.07 | 1,833 | 0.07 | 1.81 |
4D_WebSTAR_S | 1,458 | 0.06 | 1,436 | 0.06 | 1.10 |
FirstClass | 1,393 | 0.05 | 1,408 | 0.05 | -1.48 |
Netscape-FastTrack | 1,378 | 0.05 | 1,432 | 0.06 | -4.18 |
Jetty | 1,251 | 0.05 | 1,222 | 0.05 | 1.94 |
squid | 1,231 | 0.05 | 1,214 | 0.05 | 0.97 |
IBM-HTTP-Server | 1,219 | 0.05 | 1,234 | 0.05 | -1.63 |
WebLogic | 1,175 | 0.05 | 1,158 | 0.04 | 1.04 |
httpd+ssl | 1,100 | 0.04 | 1,091 | 0.04 | 0.40 |
Oracle9iAS | 1,100 | 0.04 | 1,114 | 0.04 | -1.67 |
WDaemon | 1,027 | 0.04 | 994 | 0.04 | 2.88 |
Cougar | 1,020 | 0.04 | 1,000 | 0.04 | 1.57 |
Boa | 930 | 0.04 | 909 | 0.04 | 1.88 |
thttpd | 890 | 0.03 | 889 | 0.03 | -0.31 |
NCSA | 888 | 0.03 | 918 | 0.04 | -3.68 |
III | 888 | 0.03 | 884 | 0.03 | 0.03 |
IceWarp | 879 | 0.03 | 869 | 0.03 | 0.72 |
AnWeb | 820 | 0.03 | 846 | 0.03 | -3.48 |
CommuniGatePro | 819 | 0.03 | 818 | 0.03 | -0.30 |
AppleShareIP | 789 | 0.03 | 815 | 0.03 | -3.60 |
SAMBAR | 775 | 0.03 | 779 | 0.03 | -0.93 |
AOLserver | 746 | 0.03 | 748 | 0.03 | -0.69 |
Web | 743 | 0.03 | 732 | 0.03 | 1.07 |
Oracle-Application-Server-10g | 674 | 0.03 | 598 | 0.02 | 12.23 |
Orion | 587 | 0.02 | 598 | 0.02 | -2.25 |
Xitami | 560 | 0.02 | 581 | 0.02 | -4.02 |
DeleGate | 499 | 0.02 | 499 | 0.02 | -0.42 |
Roxen | 484 | 0.02 | 505 | 0.02 | -4.56 |
OSU | 483 | 0.02 | 483 | 0.02 | -0.42 |
WebSphere | 481 | 0.02 | 445 | 0.02 | 7.63 |
Simple, | 477 | 0.02 | 466 | 0.02 | 1.93 |
HPWB | 455 | 0.02 | 460 | 0.02 | -1.50 |
4D_WebStar_D | 449 | 0.02 | 450 | 0.02 | -0.64 |
EZproxy | 445 | 0.02 | 421 | 0.02 | 5.25 |
oXeo | 426 | 0.02 | 415 | 0.02 | 2.22 |
cpsrvd | 395 | 0.02 | 385 | 0.01 | 2.16 |
Roxen·Challenger | 393 | 0.02 | 397 | 0.02 | -1.43 |
Squid | 381 | 0.01 | 392 | 0.02 | -3.22 |
CERN | 352 | 0.01 | 374 | 0.01 | -6.28 |
Oracle_Web_Listener | 343 | 0.01 | 355 | 0.01 | -3.79 |
AkamaiGHost | 343 | 0.01 | 304 | 0.01 | 12.35 |
NetCache | 341 | 0.01 | 331 | 0.01 | 2.59 |
Ultraseek | 334 | 0.01 | 335 | 0.01 | -0.72 |
WebtoB | 297 | 0.01 | 294 | 0.01 | 0.59 |
Tcl-Webserver | 295 | 0.01 | 284 | 0.01 | 3.44 |
Apache-NeoNova | 282 | 0.01 | 283 | 0.01 | -0.77 |
Statistics | 266 | 0.01 | 308 | 0.01 | -14.00 |
OpenSA | 246 | 0.01 | 248 | 0.01 | -1.22 |
Domino-Go-Webserver | 239 | 0.01 | 249 | 0.01 | -4.42 |
Abyss | 237 | 0.01 | 239 | 0.01 | -1.26 |
Powered | 232 | 0.01 | 217 | 0.01 | 6.46 |
UserLand | 225 | 0.01 | 226 | 0.01 | -0.86 |
Novell-HTTP-Server | 222 | 0.01 | 216 | 0.01 | 2.34 |
Netscape-Communications | 222 | 0.01 | 233 | 0.01 | -5.12 |
GWS | 220 | 0.01 | 216 | 0.01 | 1.42 |
Inktomi | 219 | 0.01 | 229 | 0.01 | -4.77 |
JRun | 206 | 0.01 | 198 | 0.01 | 3.60 |
Blocked | 206 | 0.01 | 0 | 0.00 | N/A |
Red | 204 | 0.01 | 206 | 0.01 | -1.39 |
Lasso | 197 | 0.01 | 207 | 0.01 | -5.23 |
IBM | 179 | 0.01 | 158 | 0.01 | 12.81 |
Web_Server_4D | 176 | 0.01 | 177 | 0.01 | -0.98 |
Caudium | 167 | 0.01 | 170 | 0.01 | -2.18 |
OmniHTTPd | 166 | 0.01 | 162 | 0.01 | 2.04 |
Internet | 165 | 0.01 | 162 | 0.01 | 1.42 |
Indy | 164 | 0.01 | 159 | 0.01 | 2.71 |
httpd | 161 | 0.01 | 162 | 0.01 | -1.04 |
SilverStream | 160 | 0.01 | 160 | 0.01 | -0.42 |
MacHTTP | 148 | 0.01 | 151 | 0.01 | -2.40 |
WindWeb | 147 | 0.01 | 162 | 0.01 | -9.64 |
QuidProQuo | 144 | 0.01 | 0 | 0.00 | N/A |
Purveyor | 142 | 0.01 | 143 | 0.01 | -1.12 |
JavaWebServer | 142 | 0.01 | 145 | 0.01 | -2.48 |
Polaris | 141 | 0.01 | 0 | 0.00 | N/A |
Jeus | 140 | 0.01 | 0 | 0.00 | N/A |
Note: Readers are cautioned that the Growth percentages are based on a server's market share penetration rather than the absolute number of servers we detected. Thus, it is possible for the number of servers to increase, while the growth is actually a negative value.