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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 | May 2003 Count |
May 2003 % |
April 2003 Count |
April 2003 % |
Growth % |
Apache | 1,154,068 | 52.47 | 1,132,648 | 52.46 | 0.02 |
Microsoft-IIS | 767,845 | 34.91 | 754,043 | 34.92 | -0.04 |
Rapidsite | 73,781 | 3.35 | 71,839 | 3.33 | 0.81 |
null | 35,228 | 1.60 | 34,205 | 1.58 | 1.10 |
Netscape-Enterprise | 33,503 | 1.52 | 33,445 | 1.55 | -1.67 |
Lotus-Domino | 15,463 | 0.70 | 15,216 | 0.70 | -0.25 |
Apache-AdvancedExtranetServer | 8,214 | 0.37 | 7,951 | 0.37 | 1.41 |
WebSTAR | 7,182 | 0.33 | 7,243 | 0.34 | -2.67 |
A | 6,953 | 0.32 | 6,719 | 0.31 | 1.58 |
WebSitePro | 6,814 | 0.31 | 7,005 | 0.32 | -4.52 |
Zeus | 6,131 | 0.28 | 6,013 | 0.28 | 0.09 |
WN | 5,247 | 0.24 | 5,264 | 0.24 | -2.16 |
Stronghold | 4,931 | 0.22 | 5,011 | 0.23 | -3.41 |
IdeaWebServer | 4,003 | 0.18 | 3,943 | 0.18 | -0.35 |
NetWare-Enterprise-Web-Server | 3,331 | 0.15 | 3,302 | 0.15 | -0.98 |
Netscape-FastTrack | 2,778 | 0.13 | 2,817 | 0.13 | -3.20 |
Ipswitch-IMail | 2,735 | 0.12 | 2,630 | 0.12 | 2.08 |
WebSite | 2,679 | 0.12 | 2,598 | 0.12 | 1.22 |
IBM_HTTP_Server | 2,228 | 0.10 | 2,206 | 0.10 | -0.86 |
FileMakerPro | 2,177 | 0.10 | 2,108 | 0.10 | 1.37 |
NCSA | 1,734 | 0.08 | 1,790 | 0.08 | -4.91 |
Oracle | 1,679 | 0.08 | 1,616 | 0.07 | 1.99 |
IBM_HTTP_SERVER | 1,597 | 0.07 | 1,510 | 0.07 | 3.82 |
Squid | 1,592 | 0.07 | 1,229 | 0.06 | 27.15 |
IBM-HTTP-Server | 1,547 | 0.07 | 1,576 | 0.07 | -3.65 |
Zope | 1,543 | 0.07 | 1,475 | 0.07 | 2.69 |
AppleShareIP | 1,495 | 0.07 | 1,508 | 0.07 | -2.69 |
FirstClass | 1,231 | 0.06 | 1,195 | 0.06 | 1.12 |
WebLogic | 928 | 0.04 | 876 | 0.04 | 3.99 |
Resin | 906 | 0.04 | 855 | 0.04 | 4.02 |
Roxen·Challenger | 873 | 0.04 | 991 | 0.05 | -13.53 |
HPWB | 865 | 0.04 | 919 | 0.04 | -7.61 |
SAMBAR | 837 | 0.04 | 827 | 0.04 | -0.65 |
4D_WebSTAR_S | 782 | 0.04 | 725 | 0.03 | 5.88 |
WebServer | 758 | 0.03 | 681 | 0.03 | 9.26 |
Oracle_Web_Listener | 754 | 0.03 | 769 | 0.04 | -3.75 |
Xitami | 737 | 0.03 | 738 | 0.03 | -1.97 |
CERN | 721 | 0.03 | 726 | 0.03 | -2.51 |
AOLserver | 642 | 0.03 | 614 | 0.03 | 2.64 |
thttpd | 611 | 0.03 | 595 | 0.03 | 0.80 |
Lasso | 603 | 0.03 | 590 | 0.03 | 0.32 |
Netscape-Communications | 592 | 0.03 | 599 | 0.03 | -2.99 |
WDaemon | 591 | 0.03 | 570 | 0.03 | 1.78 |
OSU | 589 | 0.03 | 588 | 0.03 | -1.67 |
Oracle9iAS | 577 | 0.03 | 520 | 0.02 | 8.92 |
Cougar | 570 | 0.03 | 551 | 0.03 | 1.55 |
CommuniGatePro | 569 | 0.03 | 552 | 0.03 | 1.18 |
Roxen | 564 | 0.03 | 540 | 0.03 | 2.52 |
Jetty | 522 | 0.02 | 458 | 0.02 | 11.88 |
AnWeb | 516 | 0.02 | 499 | 0.02 | 1.51 |
Novell-HTTP-Server | 510 | 0.02 | 510 | 0.02 | -1.84 |
Orion | 508 | 0.02 | 491 | 0.02 | 1.56 |
WWW | 485 | 0.02 | 459 | 0.02 | 3.72 |
httpd+ssl | 476 | 0.02 | 456 | 0.02 | 2.47 |
Statistics | 470 | 0.02 | 476 | 0.02 | -3.08 |
Boa | 468 | 0.02 | 455 | 0.02 | 0.97 |
MACOS_Personal_Websharing | 466 | 0.02 | 456 | 0.02 | 0.31 |
Domino-Go-Webserver | 452 | 0.02 | 450 | 0.02 | -1.40 |
Web | 416 | 0.02 | 416 | 0.02 | -1.84 |
Patchy | 392 | 0.02 | 391 | 0.02 | -1.59 |
OmniHTTPd | 392 | 0.02 | 375 | 0.02 | 2.61 |
Inktomi | 367 | 0.02 | 369 | 0.02 | -2.37 |
4D_WebStar_D | 345 | 0.02 | 333 | 0.02 | 1.70 |
Apache-NeoNova | 279 | 0.01 | 279 | 0.01 | -1.84 |
Red | 271 | 0.01 | 278 | 0.01 | -4.31 |
OpenSA | 269 | 0.01 | 262 | 0.01 | 0.78 |
QuidProQuo | 265 | 0.01 | 267 | 0.01 | -2.57 |
IceWarp | 241 | 0.01 | 206 | 0.01 | 14.84 |
JavaWebServer | 238 | 0.01 | 250 | 0.01 | -6.55 |
squid | 236 | 0.01 | 224 | 0.01 | 3.42 |
Netscape-Commerce | 235 | 0.01 | 230 | 0.01 | 0.30 |
UserLand | 231 | 0.01 | 231 | 0.01 | -1.84 |
MacHTTP | 221 | 0.01 | 228 | 0.01 | -4.85 |
Purveyor | 218 | 0.01 | 216 | 0.01 | -0.93 |
Caudium | 212 | 0.01 | 208 | 0.01 | 0.05 |
mod_perl | 211 | 0.01 | 219 | 0.01 | -5.42 |
Web_Server_4D | 206 | 0.01 | 203 | 0.01 | -0.39 |
Netrox-Apache | 197 | 0.01 | 198 | 0.01 | -2.33 |
NaviServer | 197 | 0.01 | 197 | 0.01 | -1.84 |
MHttpd | 190 | 0.01 | 186 | 0.01 | 0.27 |
Ultraseek | 175 | 0.01 | 173 | 0.01 | -0.70 |
Worldgroup | 172 | 0.01 | 176 | 0.01 | -4.07 |
IBM | 172 | 0.01 | 170 | 0.01 | -0.68 |
oXeo | 166 | 0.01 | 151 | 0.01 | 7.91 |
Internet | 166 | 0.01 | 165 | 0.01 | -1.24 |
MDNServer | 160 | 0.01 | 152 | 0.01 | 3.33 |
JRun | 160 | 0.01 | 158 | 0.01 | -0.60 |
HP | 158 | 0.01 | 153 | 0.01 | 1.37 |
Tomcat | 155 | 0.01 | 144 | 0.01 | 5.66 |
NetCache | 153 | 0.01 | 149 | 0.01 | 0.80 |
Unknown | 148 | 0.01 | 149 | 0.01 | -2.50 |
EZproxy | 143 | 0.01 | 125 | 0.01 | 12.30 |
DeleGate | 138 | 0.01 | 132 | 0.01 | 2.62 |
Commerce-Builder | 137 | 0.01 | 139 | 0.01 | -3.25 |
CQhost | 132 | 0.01 | 130 | 0.01 | -0.33 |
Wapapi | 131 | 0.01 | 130 | 0.01 | -1.08 |
Sun_WebServer | 129 | 0.01 | 137 | 0.01 | -7.57 |
HTTP | 129 | 0.01 | 0 | 0.00 | N/A |
HP-UX_Apache-based_Web_Server | 127 | 0.01 | 140 | 0.01 | -10.95 |
Fujitsu-InfoProvider-Pro | 125 | 0.01 | 120 | 0.01 | 2.25 |
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.