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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 2007 Count |
April 2007 % |
March 2007 Count |
March 2007 % |
Growth % |
Apache | 1,801,309 | 57.22 | 1,784,491 | 57.30 | -0.15 |
Microsoft-IIS | 909,552 | 28.89 | 904,797 | 29.05 | -0.57 |
null | 174,979 | 5.56 | 164,843 | 5.29 | 5.00 |
Rapidsite | 66,003 | 2.10 | 65,572 | 2.11 | -0.44 |
Apache-Coyote | 17,123 | 0.54 | 16,442 | 0.53 | 3.01 |
Lotus-Domino | 14,423 | 0.46 | 14,436 | 0.46 | -1.17 |
A | 13,976 | 0.44 | 13,721 | 0.44 | 0.75 |
Netscape-Enterprise | 12,721 | 0.40 | 13,296 | 0.43 | -5.36 |
IdeaWebServer | 12,087 | 0.38 | 11,571 | 0.37 | 3.33 |
Apache-AdvancedExtranetServer | 5,713 | 0.18 | 5,904 | 0.19 | -4.29 |
NOYB | 5,247 | 0.17 | 5,350 | 0.17 | -2.99 |
lighttpd | 4,946 | 0.16 | 4,837 | 0.16 | 1.14 |
Zeus | 4,717 | 0.15 | 4,770 | 0.15 | -2.18 |
nginx | 4,710 | 0.15 | 4,379 | 0.14 | 6.39 |
Zope | 4,199 | 0.13 | 4,152 | 0.13 | 0.03 |
IBM_HTTP_Server | 3,918 | 0.12 | 3,856 | 0.12 | 0.50 |
Sun-ONE-Web-Server | 3,870 | 0.12 | 3,828 | 0.12 | -0.00 |
WebServer | 3,635 | 0.12 | 3,547 | 0.11 | 1.37 |
Resin | 2,875 | 0.09 | 2,869 | 0.09 | -0.88 |
Oracle-Application-Server-10g | 2,638 | 0.08 | 2,589 | 0.08 | 0.79 |
squid | 2,469 | 0.08 | 2,319 | 0.07 | 5.31 |
Ipswitch-IMail | 2,303 | 0.07 | 2,368 | 0.08 | -3.80 |
IBM_HTTP_SERVER | 2,299 | 0.07 | 2,363 | 0.08 | -3.76 |
WebSTAR | 2,098 | 0.07 | 2,151 | 0.07 | -3.52 |
Cougar | 1,813 | 0.06 | 1,697 | 0.05 | 5.68 |
Oracle | 1,587 | 0.05 | 1,581 | 0.05 | -0.71 |
Jetty | 1,554 | 0.05 | 1,497 | 0.05 | 2.68 |
WebSitePro | 1,434 | 0.05 | 1,480 | 0.05 | -4.16 |
IceWarp | 1,424 | 0.05 | 1,389 | 0.04 | 1.41 |
FileMakerPro | 1,377 | 0.04 | 1,409 | 0.05 | -3.33 |
GWS | 1,337 | 0.04 | 1,282 | 0.04 | 3.16 |
WDaemon | 1,322 | 0.04 | 1,295 | 0.04 | 0.98 |
WebLogic | 1,317 | 0.04 | 1,331 | 0.04 | -2.13 |
Boa | 1,292 | 0.04 | 1,226 | 0.04 | 4.24 |
WebSite | 1,142 | 0.04 | 1,199 | 0.04 | -5.79 |
BIG-IP | 1,108 | 0.04 | 1,009 | 0.03 | 8.62 |
4D_WebSTAR_S | 1,098 | 0.03 | 1,121 | 0.04 | -3.11 |
AnWeb | 1,063 | 0.03 | 1,070 | 0.03 | -1.73 |
thttpd | 1,024 | 0.03 | 999 | 0.03 | 1.39 |
III | 1,000 | 0.03 | 987 | 0.03 | 0.22 |
CommuniGatePro | 981 | 0.03 | 969 | 0.03 | 0.14 |
httpd+ssl | 936 | 0.03 | 938 | 0.03 | -1.30 |
WebServerX | 926 | 0.03 | 789 | 0.03 | 16.09 |
AOLserver | 781 | 0.02 | 770 | 0.02 | 0.33 |
EZproxy | 765 | 0.02 | 754 | 0.02 | 0.36 |
Stronghold | 746 | 0.02 | 767 | 0.02 | -3.79 |
PowerSchool | 733 | 0.02 | 714 | 0.02 | 1.55 |
Web | 711 | 0.02 | 708 | 0.02 | -0.67 |
NetWare-Enterprise-Web-Server | 690 | 0.02 | 720 | 0.02 | -5.21 |
Oracle9iAS | 645 | 0.02 | 658 | 0.02 | -3.04 |
AkamaiGHost | 629 | 0.02 | 598 | 0.02 | 4.04 |
SAMBAR | 613 | 0.02 | 625 | 0.02 | -2.98 |
4D_WebStar_D | 608 | 0.02 | 589 | 0.02 | 2.11 |
cpsrvd | 574 | 0.02 | 574 | 0.02 | -1.09 |
Netscape-FastTrack | 561 | 0.02 | 572 | 0.02 | -2.99 |
WebtoB | 539 | 0.02 | 545 | 0.02 | -2.17 |
DeleGate | 530 | 0.02 | 532 | 0.02 | -1.46 |
NetCache | 522 | 0.02 | 573 | 0.02 | -9.89 |
Orion | 513 | 0.02 | 520 | 0.02 | -2.42 |
redir-httpd | 508 | 0.02 | 506 | 0.02 | -0.69 |
LiteSpeed | 481 | 0.02 | 433 | 0.01 | 9.88 |
EdgePrism | 479 | 0.02 | 450 | 0.01 | 5.29 |
Roxen | 439 | 0.01 | 455 | 0.01 | -4.56 |
IBM-HTTP-Server | 436 | 0.01 | 460 | 0.01 | -6.25 |
NCSA | 432 | 0.01 | 446 | 0.01 | -4.19 |
FirstClass | 405 | 0.01 | 454 | 0.01 | -11.76 |
WebSphere | 383 | 0.01 | 368 | 0.01 | 2.95 |
Ultraseek | 380 | 0.01 | 374 | 0.01 | 0.50 |
Acenet | 373 | 0.01 | 377 | 0.01 | -2.13 |
OSU | 361 | 0.01 | 362 | 0.01 | -1.36 |
Xitami | 358 | 0.01 | 361 | 0.01 | -1.91 |
Abyss | 356 | 0.01 | 354 | 0.01 | -0.53 |
ListManagerWeb | 348 | 0.01 | 343 | 0.01 | 0.36 |
AppleShareIP | 304 | 0.01 | 318 | 0.01 | -5.44 |
Nost | 282 | 0.01 | 287 | 0.01 | -2.81 |
Power | 273 | 0.01 | 213 | 0.01 | 26.78 |
Indy | 251 | 0.01 | 239 | 0.01 | 3.88 |
"" | 251 | 0.01 | 260 | 0.01 | -4.51 |
httpd | 250 | 0.01 | 244 | 0.01 | 1.35 |
JRun | 250 | 0.01 | 258 | 0.01 | -4.15 |
Jeus | 238 | 0.01 | 234 | 0.01 | 0.61 |
WWW | 224 | 0.01 | 217 | 0.01 | 2.11 |
Tcl-Webserver | 215 | 0.01 | 228 | 0.01 | -6.73 |
Microsoft-HTTPAPI | 215 | 0.01 | 216 | 0.01 | -1.54 |
IIS | 209 | 0.01 | 245 | 0.01 | -15.62 |
Polaris | 206 | 0.01 | 205 | 0.01 | -0.60 |
UserLand | 193 | 0.01 | 198 | 0.01 | -3.58 |
NS_6.1 | 186 | 0.01 | 168 | 0.01 | 9.51 |
Apache-NeoNova | 185 | 0.01 | 181 | 0.01 | 1.10 |
Powered | 184 | 0.01 | 185 | 0.01 | -1.62 |
Webserver | 183 | 0.01 | 185 | 0.01 | -2.15 |
HPWB | 177 | 0.01 | 189 | 0.01 | -7.37 |
NAB | 175 | 0.01 | 174 | 0.01 | -0.52 |
Server | 173 | 0.01 | 166 | 0.01 | 3.09 |
Secured | 170 | 0.01 | 0 | 0.00 | N/A |
OpenSA | 167 | 0.01 | 173 | 0.01 | -4.52 |
Disallowed | 167 | 0.01 | 169 | 0.01 | -2.26 |
Mittwald | 165 | 0.01 | 0 | 0.00 | N/A |
eSoft | 163 | 0.01 | 181 | 0.01 | -10.92 |
Fujitsu-InfoProvider-Pro | 162 | 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.