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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 | April 2005 Count |
April 2005 % |
March 2005 Count |
March 2005 % |
Growth % |
Apache | 1,458,113 | 55.24 | 1,441,644 | 55.11 | 0.25 |
Microsoft-IIS | 858,380 | 32.52 | 855,184 | 32.69 | -0.51 |
null | 79,346 | 3.01 | 76,608 | 2.93 | 2.66 |
Rapidsite | 70,940 | 2.69 | 71,568 | 2.74 | -1.75 |
Netscape-Enterprise | 21,491 | 0.81 | 21,836 | 0.83 | -2.45 |
Lotus-Domino | 15,661 | 0.59 | 15,716 | 0.60 | -1.23 |
Apache-AdvancedExtranetServer | 10,538 | 0.40 | 10,519 | 0.40 | -0.70 |
A | 10,230 | 0.39 | 10,119 | 0.39 | 0.20 |
IdeaWebServer | 5,708 | 0.22 | 5,606 | 0.21 | 0.92 |
Zeus | 5,595 | 0.21 | 5,596 | 0.21 | -0.90 |
Apache-Coyote | 5,543 | 0.21 | 5,069 | 0.19 | 8.39 |
WebSTAR | 3,770 | 0.14 | 3,845 | 0.15 | -2.82 |
WN | 3,626 | 0.14 | 3,684 | 0.14 | -2.44 |
Ipswitch-IMail | 3,605 | 0.14 | 3,602 | 0.14 | -0.80 |
WebSitePro | 3,353 | 0.13 | 3,449 | 0.13 | -3.64 |
IBM_HTTP_SERVER | 3,032 | 0.11 | 3,036 | 0.12 | -1.01 |
Zope | 3,009 | 0.11 | 2,981 | 0.11 | 0.05 |
Sun-ONE-Web-Server | 2,783 | 0.11 | 2,634 | 0.10 | 4.72 |
WebSite | 2,416 | 0.09 | 2,487 | 0.10 | -3.71 |
Stronghold | 2,362 | 0.09 | 2,442 | 0.09 | -4.13 |
IBM_HTTP_Server | 2,248 | 0.09 | 2,176 | 0.08 | 2.40 |
WebServer | 2,172 | 0.08 | 2,093 | 0.08 | 2.86 |
Oracle | 2,013 | 0.08 | 2,004 | 0.08 | -0.44 |
FileMakerPro | 1,970 | 0.07 | 1,996 | 0.08 | -2.17 |
Resin | 1,955 | 0.07 | 1,940 | 0.07 | -0.12 |
NetWare-Enterprise-Web-Server | 1,856 | 0.07 | 1,901 | 0.07 | -3.23 |
4D_WebSTAR_S | 1,460 | 0.06 | 1,467 | 0.06 | -1.36 |
FirstClass | 1,415 | 0.05 | 1,419 | 0.05 | -1.16 |
Jetty | 1,326 | 0.05 | 1,293 | 0.05 | 1.65 |
squid | 1,304 | 0.05 | 1,266 | 0.05 | 2.09 |
Netscape-FastTrack | 1,295 | 0.05 | 1,352 | 0.05 | -5.06 |
WebLogic | 1,182 | 0.04 | 1,163 | 0.04 | 0.74 |
IBM-HTTP-Server | 1,148 | 0.04 | 1,191 | 0.05 | -4.46 |
httpd+ssl | 1,104 | 0.04 | 1,106 | 0.04 | -1.06 |
Oracle9iAS | 1,076 | 0.04 | 1,098 | 0.04 | -2.87 |
Cougar | 1,071 | 0.04 | 1,052 | 0.04 | 0.91 |
WDaemon | 1,057 | 0.04 | 1,035 | 0.04 | 1.22 |
Boa | 958 | 0.04 | 937 | 0.04 | 1.34 |
thttpd | 948 | 0.04 | 933 | 0.04 | 0.71 |
IceWarp | 935 | 0.04 | 895 | 0.03 | 3.55 |
III | 897 | 0.03 | 892 | 0.03 | -0.33 |
NCSA | 853 | 0.03 | 883 | 0.03 | -4.25 |
AnWeb | 848 | 0.03 | 843 | 0.03 | -0.29 |
CommuniGatePro | 835 | 0.03 | 835 | 0.03 | -0.88 |
Oracle-Application-Server-10g | 812 | 0.03 | 719 | 0.03 | 11.94 |
SAMBAR | 771 | 0.03 | 777 | 0.03 | -1.65 |
AOLserver | 744 | 0.03 | 761 | 0.03 | -3.10 |
Web | 739 | 0.03 | 746 | 0.03 | -1.81 |
AppleShareIP | 734 | 0.03 | 760 | 0.03 | -4.27 |
nginx | 700 | 0.03 | 163 | 0.01 | 325.66 |
Orion | 575 | 0.02 | 579 | 0.02 | -1.57 |
Xitami | 546 | 0.02 | 569 | 0.02 | -4.89 |
WebSphere | 534 | 0.02 | 526 | 0.02 | 0.63 |
DeleGate | 498 | 0.02 | 498 | 0.02 | -0.88 |
Simple, | 482 | 0.02 | 469 | 0.02 | 1.87 |
redir-httpd | 475 | 0.02 | 0 | 0.00 | N/A |
OSU | 471 | 0.02 | 476 | 0.02 | -1.92 |
Roxen | 470 | 0.02 | 480 | 0.02 | -2.95 |
4D_WebStar_D | 470 | 0.02 | 448 | 0.02 | 3.99 |
EZproxy | 464 | 0.02 | 456 | 0.02 | 0.86 |
HPWB | 431 | 0.02 | 443 | 0.02 | -3.57 |
cpsrvd | 427 | 0.02 | 411 | 0.02 | 2.98 |
NetCache | 372 | 0.01 | 347 | 0.01 | 6.26 |
Squid | 364 | 0.01 | 357 | 0.01 | 1.06 |
Roxen·Challenger | 356 | 0.01 | 372 | 0.01 | -5.15 |
Ultraseek | 351 | 0.01 | 347 | 0.01 | 0.26 |
CERN | 334 | 0.01 | 339 | 0.01 | -2.34 |
WebtoB | 323 | 0.01 | 305 | 0.01 | 4.97 |
AkamaiGHost | 320 | 0.01 | 309 | 0.01 | 2.65 |
Oracle_Web_Listener | 317 | 0.01 | 329 | 0.01 | -4.50 |
oXeo | 313 | 0.01 | 390 | 0.01 | -20.45 |
Tcl-Webserver | 309 | 0.01 | 313 | 0.01 | -2.15 |
Apache-NeoNova | 289 | 0.01 | 290 | 0.01 | -1.22 |
Abyss | 260 | 0.01 | 247 | 0.01 | 4.33 |
Statistics | 248 | 0.01 | 259 | 0.01 | -5.09 |
OpenSA | 245 | 0.01 | 251 | 0.01 | -3.25 |
Domino-Go-Webserver | 232 | 0.01 | 235 | 0.01 | -2.15 |
Blocked | 229 | 0.01 | 222 | 0.01 | 2.24 |
Powered | 227 | 0.01 | 234 | 0.01 | -3.85 |
lighttpd | 224 | 0.01 | 148 | 0.01 | 50.02 |
Novell-HTTP-Server | 223 | 0.01 | 223 | 0.01 | -0.88 |
UserLand | 218 | 0.01 | 218 | 0.01 | -0.88 |
GWS | 215 | 0.01 | 222 | 0.01 | -4.01 |
Netscape-Communications | 212 | 0.01 | 213 | 0.01 | -1.35 |
Lasso | 208 | 0.01 | 200 | 0.01 | 3.08 |
Inktomi | 207 | 0.01 | 217 | 0.01 | -5.45 |
Red | 201 | 0.01 | 204 | 0.01 | -2.34 |
JRun | 197 | 0.01 | 199 | 0.01 | -1.88 |
eSoft | 184 | 0.01 | 0 | 0.00 | N/A |
IBM | 177 | 0.01 | 176 | 0.01 | -0.32 |
Indy | 175 | 0.01 | 172 | 0.01 | 0.85 |
Caudium | 170 | 0.01 | 175 | 0.01 | -3.71 |
Web_Server_4D | 166 | 0.01 | 172 | 0.01 | -4.34 |
httpd | 162 | 0.01 | 167 | 0.01 | -3.85 |
Polaris | 160 | 0.01 | 144 | 0.01 | 10.13 |
OmniHTTPd | 159 | 0.01 | 162 | 0.01 | -2.72 |
Internet | 158 | 0.01 | 157 | 0.01 | -0.25 |
SilverStream | 157 | 0.01 | 160 | 0.01 | -2.74 |
Jeus | 147 | 0.01 | 143 | 0.01 | 1.89 |
Tomcat | 140 | 0.01 | 141 | 0.01 | -1.59 |
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.