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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 | March 2005 Count |
March 2005 % |
February 2005 Count |
February 2005 % |
Growth % |
Apache | 1,441,644 | 55.11 | 1,426,548 | 55.04 | 0.12 |
Microsoft-IIS | 855,184 | 32.69 | 848,716 | 32.75 | -0.18 |
null | 76,608 | 2.93 | 73,471 | 2.83 | 3.30 |
Rapidsite | 71,568 | 2.74 | 72,932 | 2.81 | -2.79 |
Netscape-Enterprise | 21,836 | 0.83 | 21,988 | 0.85 | -1.62 |
Lotus-Domino | 15,716 | 0.60 | 15,711 | 0.61 | -0.90 |
Apache-AdvancedExtranetServer | 10,519 | 0.40 | 10,445 | 0.40 | -0.23 |
A | 10,119 | 0.39 | 9,987 | 0.39 | 0.38 |
IdeaWebServer | 5,606 | 0.21 | 5,518 | 0.21 | 0.65 |
Zeus | 5,596 | 0.21 | 5,650 | 0.22 | -1.88 |
Apache-Coyote | 5,069 | 0.19 | 4,642 | 0.18 | 8.18 |
WebSTAR | 3,845 | 0.15 | 3,900 | 0.15 | -2.33 |
WN | 3,684 | 0.14 | 3,729 | 0.14 | -2.13 |
Ipswitch-IMail | 3,602 | 0.14 | 3,609 | 0.14 | -1.12 |
WebSitePro | 3,449 | 0.13 | 3,517 | 0.14 | -2.85 |
IBM_HTTP_SERVER | 3,036 | 0.12 | 3,059 | 0.12 | -1.68 |
Zope | 2,981 | 0.11 | 2,889 | 0.11 | 2.22 |
Sun-ONE-Web-Server | 2,634 | 0.10 | 2,516 | 0.10 | 3.71 |
WebSite | 2,487 | 0.10 | 2,558 | 0.10 | -3.68 |
Stronghold | 2,442 | 0.09 | 2,508 | 0.10 | -3.54 |
IBM_HTTP_Server | 2,176 | 0.08 | 2,130 | 0.08 | 1.21 |
WebServer | 2,093 | 0.08 | 2,006 | 0.08 | 3.36 |
Oracle | 2,004 | 0.08 | 2,003 | 0.08 | -0.88 |
FileMakerPro | 1,996 | 0.08 | 1,998 | 0.08 | -1.03 |
Resin | 1,940 | 0.07 | 1,874 | 0.07 | 2.56 |
NetWare-Enterprise-Web-Server | 1,901 | 0.07 | 1,930 | 0.07 | -2.42 |
4D_WebSTAR_S | 1,467 | 0.06 | 1,458 | 0.06 | -0.32 |
FirstClass | 1,419 | 0.05 | 1,393 | 0.05 | 0.92 |
Netscape-FastTrack | 1,352 | 0.05 | 1,378 | 0.05 | -2.80 |
Jetty | 1,293 | 0.05 | 1,251 | 0.05 | 2.39 |
squid | 1,266 | 0.05 | 1,231 | 0.05 | 1.88 |
IBM-HTTP-Server | 1,191 | 0.05 | 1,219 | 0.05 | -3.21 |
WebLogic | 1,163 | 0.04 | 1,175 | 0.05 | -1.94 |
httpd+ssl | 1,106 | 0.04 | 1,100 | 0.04 | -0.39 |
Oracle9iAS | 1,098 | 0.04 | 1,100 | 0.04 | -1.11 |
Cougar | 1,052 | 0.04 | 1,020 | 0.04 | 2.18 |
WDaemon | 1,035 | 0.04 | 1,027 | 0.04 | -0.16 |
Boa | 937 | 0.04 | 930 | 0.04 | -0.19 |
thttpd | 933 | 0.04 | 890 | 0.03 | 3.85 |
IceWarp | 895 | 0.03 | 879 | 0.03 | 0.87 |
III | 892 | 0.03 | 888 | 0.03 | -0.49 |
NCSA | 883 | 0.03 | 888 | 0.03 | -1.49 |
AnWeb | 843 | 0.03 | 820 | 0.03 | 1.85 |
CommuniGatePro | 835 | 0.03 | 819 | 0.03 | 1.00 |
SAMBAR | 777 | 0.03 | 775 | 0.03 | -0.68 |
AOLserver | 761 | 0.03 | 746 | 0.03 | 1.06 |
AppleShareIP | 760 | 0.03 | 789 | 0.03 | -4.57 |
Web | 746 | 0.03 | 743 | 0.03 | -0.53 |
Oracle-Application-Server-10g | 719 | 0.03 | 674 | 0.03 | 5.68 |
Orion | 579 | 0.02 | 587 | 0.02 | -2.28 |
Xitami | 569 | 0.02 | 560 | 0.02 | 0.66 |
WebSphere | 526 | 0.02 | 481 | 0.02 | 8.34 |
DeleGate | 498 | 0.02 | 499 | 0.02 | -1.13 |
Roxen | 480 | 0.02 | 484 | 0.02 | -1.75 |
OSU | 476 | 0.02 | 483 | 0.02 | -2.37 |
Simple, | 469 | 0.02 | 477 | 0.02 | -2.59 |
EZproxy | 456 | 0.02 | 445 | 0.02 | 1.52 |
4D_WebStar_D | 448 | 0.02 | 449 | 0.02 | -1.15 |
HPWB | 443 | 0.02 | 455 | 0.02 | -3.55 |
cpsrvd | 411 | 0.02 | 395 | 0.02 | 3.08 |
oXeo | 390 | 0.01 | 426 | 0.02 | -9.30 |
Roxen·Challenger | 372 | 0.01 | 393 | 0.02 | -6.23 |
Squid | 357 | 0.01 | 381 | 0.01 | -7.17 |
Ultraseek | 347 | 0.01 | 334 | 0.01 | 2.92 |
NetCache | 347 | 0.01 | 341 | 0.01 | 0.81 |
CERN | 339 | 0.01 | 352 | 0.01 | -4.59 |
Oracle_Web_Listener | 329 | 0.01 | 343 | 0.01 | -4.98 |
Tcl-Webserver | 313 | 0.01 | 295 | 0.01 | 5.11 |
AkamaiGHost | 309 | 0.01 | 343 | 0.01 | -10.75 |
WebtoB | 305 | 0.01 | 297 | 0.01 | 1.74 |
Apache-NeoNova | 290 | 0.01 | 282 | 0.01 | 1.88 |
Statistics | 259 | 0.01 | 266 | 0.01 | -3.54 |
OpenSA | 251 | 0.01 | 246 | 0.01 | 1.08 |
Abyss | 247 | 0.01 | 237 | 0.01 | 3.25 |
Domino-Go-Webserver | 235 | 0.01 | 239 | 0.01 | -2.59 |
Powered | 234 | 0.01 | 232 | 0.01 | -0.08 |
Novell-HTTP-Server | 223 | 0.01 | 222 | 0.01 | -0.49 |
GWS | 222 | 0.01 | 220 | 0.01 | -0.03 |
Blocked | 222 | 0.01 | 206 | 0.01 | 6.76 |
UserLand | 218 | 0.01 | 225 | 0.01 | -4.01 |
Inktomi | 217 | 0.01 | 219 | 0.01 | -1.84 |
Netscape-Communications | 213 | 0.01 | 222 | 0.01 | -4.95 |
Red | 204 | 0.01 | 204 | 0.01 | -0.93 |
Lasso | 200 | 0.01 | 197 | 0.01 | 0.58 |
JRun | 199 | 0.01 | 206 | 0.01 | -4.30 |
IBM | 176 | 0.01 | 179 | 0.01 | -2.59 |
Caudium | 175 | 0.01 | 167 | 0.01 | 3.81 |
Web_Server_4D | 172 | 0.01 | 176 | 0.01 | -3.18 |
Indy | 172 | 0.01 | 164 | 0.01 | 3.90 |
httpd | 167 | 0.01 | 161 | 0.01 | 2.76 |
nginx | 163 | 0.01 | 0 | 0.00 | N/A |
OmniHTTPd | 162 | 0.01 | 166 | 0.01 | -3.32 |
SilverStream | 160 | 0.01 | 160 | 0.01 | -0.93 |
Internet | 157 | 0.01 | 165 | 0.01 | -5.74 |
lighttpd | 148 | 0.01 | 0 | 0.00 | N/A |
Polaris | 144 | 0.01 | 141 | 0.01 | 1.18 |
Jeus | 143 | 0.01 | 140 | 0.01 | 1.19 |
MacHTTP | 142 | 0.01 | 148 | 0.01 | -4.95 |
Tomcat | 141 | 0.01 | 0 | 0.00 | N/A |
Fujitsu-InfoProvider-Pro | 141 | 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.