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Survey Data Mining: Home | FAQ | Archive | Glossary |
Free Reports |
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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 2001 Count |
February 2001 % |
January 2001 Count |
January 2001 % |
Growth % |
Apache | 594,720 | 46.83 | 590,064 | 46.72 | 0.25 |
Microsoft-IIS | 429,463 | 33.82 | 425,118 | 33.66 | 0.48 |
Netscape-Enterprise | 40,804 | 3.21 | 41,225 | 3.26 | -1.55 |
thttpd | 39,596 | 3.12 | 40,205 | 3.18 | -2.04 |
Rapidsite | 37,266 | 2.93 | 36,232 | 2.87 | 2.30 |
null | 17,712 | 1.39 | 17,605 | 1.39 | 0.07 |
WebSitePro | 11,837 | 0.93 | 12,097 | 0.96 | -2.67 |
Lotus-Domino | 10,301 | 0.81 | 10,250 | 0.81 | -0.04 |
Stronghold | 8,813 | 0.69 | 8,893 | 0.70 | -1.43 |
WebSTAR | 8,741 | 0.69 | 8,699 | 0.69 | -0.05 |
WN | 5,623 | 0.44 | 5,778 | 0.46 | -3.20 |
NCSA | 5,599 | 0.44 | 5,784 | 0.46 | -3.72 |
Netscape-FastTrack | 5,570 | 0.44 | 5,894 | 0.47 | -6.00 |
BESTWWWD | 4,934 | 0.39 | 4,926 | 0.39 | -0.37 |
Zeus | 3,336 | 0.26 | 3,230 | 0.26 | 2.73 |
Roxen·Challenger | 2,249 | 0.18 | 2,492 | 0.20 | -10.23 |
CERN | 1,887 | 0.15 | 1,923 | 0.15 | -2.40 |
Apache-1.3.4 | 1,887 | 0.15 | 2,889 | 0.23 | -35.03 |
Netscape-Communications | 1,651 | 0.13 | 1,769 | 0.14 | -7.17 |
AppleShareIP | 1,512 | 0.12 | 1,458 | 0.12 | 3.15 |
Apache-AdvancedExtranetServer | 1,424 | 0.11 | 1,348 | 0.11 | 5.07 |
NetWare-Enterprise-Web-Server | 1,252 | 0.10 | 1,143 | 0.09 | 8.95 |
FileMakerPro | 1,175 | 0.09 | 1,195 | 0.09 | -2.20 |
Red | 1,087 | 0.09 | 1,222 | 0.10 | -11.52 |
Oracle_Web_Listener | 1,083 | 0.09 | 1,075 | 0.09 | 0.21 |
Novell-HTTP-Server | 1,031 | 0.08 | 1,067 | 0.08 | -3.89 |
Netscape-Commerce | 978 | 0.08 | 1,036 | 0.08 | -6.10 |
HPWB | 918 | 0.07 | 921 | 0.07 | -0.86 |
ApacheFP | 864 | 0.07 | 850 | 0.07 | 1.10 |
IBM_HTTP_Server | 839 | 0.07 | 777 | 0.06 | 7.40 |
mod_perl | 832 | 0.07 | 864 | 0.07 | -4.22 |
OSU | 818 | 0.06 | 820 | 0.06 | -0.78 |
WebSite | 810 | 0.06 | 851 | 0.07 | -5.33 |
IBM-HTTP-Server | 758 | 0.06 | 731 | 0.06 | 3.14 |
Domino-Go-Webserver | 706 | 0.06 | 712 | 0.06 | -1.37 |
Ipswitch-IMail | 682 | 0.05 | 635 | 0.05 | 6.83 |
Affinity-Apache | 627 | 0.05 | 632 | 0.05 | -1.32 |
FirstClass | 604 | 0.05 | 596 | 0.05 | 0.80 |
IdeaWebServer | 501 | 0.04 | 479 | 0.04 | 4.03 |
NaviServer | 491 | 0.04 | 508 | 0.04 | -3.86 |
Xitami | 451 | 0.04 | 458 | 0.04 | -2.05 |
SAMBAR | 440 | 0.03 | 436 | 0.03 | 0.38 |
QuidProQuo | 429 | 0.03 | 452 | 0.04 | -5.60 |
Commerce-Builder | 423 | 0.03 | 440 | 0.03 | -4.38 |
MacHTTP | 404 | 0.03 | 418 | 0.03 | -3.87 |
JavaWebServer | 391 | 0.03 | 416 | 0.03 | -6.51 |
SWS-1.0 | 390 | 0.03 | 407 | 0.03 | -4.69 |
Purveyor | 385 | 0.03 | 392 | 0.03 | -2.31 |
Microsoft-PWS | 374 | 0.03 | 395 | 0.03 | -5.82 |
ApacheSSL | 369 | 0.03 | 370 | 0.03 | -0.80 |
Lasso | 367 | 0.03 | 350 | 0.03 | 4.30 |
Microsoft-PWS-95 | 363 | 0.03 | 359 | 0.03 | 0.57 |
Roxen | 330 | 0.03 | 257 | 0.02 | 27.72 |
Squid | 319 | 0.03 | 313 | 0.02 | 1.37 |
Worldgroup | 300 | 0.02 | 307 | 0.02 | -2.80 |
Ultraseek | 295 | 0.02 | 291 | 0.02 | 0.83 |
MACOS_Personal_Websharing | 293 | 0.02 | 295 | 0.02 | -1.21 |
Microsoft-Internet-Information-Server | 292 | 0.02 | 325 | 0.03 | -10.63 |
OmniHTTPd | 278 | 0.02 | 274 | 0.02 | 0.92 |
IBM-ICS | 242 | 0.02 | 251 | 0.02 | -4.10 |
Sun_WebServer | 232 | 0.02 | 226 | 0.02 | 2.11 |
Statistics | 232 | 0.02 | 230 | 0.02 | 0.33 |
Caudium | 222 | 0.02 | 0 | 0.00 | N/A |
Oracle_Web_listener3.0.2.0.0 | 221 | 0.02 | 228 | 0.02 | -3.59 |
WebLogic | 209 | 0.02 | 195 | 0.02 | 6.61 |
Open-Market-Secure-WebServer | 192 | 0.02 | 200 | 0.02 | -4.51 |
Zope | 186 | 0.01 | 175 | 0.01 | 5.72 |
Powered | 173 | 0.01 | 175 | 0.01 | -1.67 |
eShare-Expressions | 171 | 0.01 | 168 | 0.01 | 1.24 |
Web_Server_4D | 166 | 0.01 | 166 | 0.01 | -0.53 |
FrontPage-PWS32 | 159 | 0.01 | 163 | 0.01 | -2.97 |
Web | 154 | 0.01 | 150 | 0.01 | 2.12 |
PowerWeb | 151 | 0.01 | 155 | 0.01 | -3.10 |
ConcentricHost-Ashurbanipal | 150 | 0.01 | 159 | 0.01 | -6.16 |
Apache-SSL-US | 147 | 0.01 | 146 | 0.01 | 0.15 |
AiNET | 147 | 0.01 | 205 | 0.02 | -28.68 |
AnWeb | 143 | 0.01 | 147 | 0.01 | -3.24 |
Oracle_Web_listener2.1 | 131 | 0.01 | 137 | 0.01 | -4.89 |
Mini-Proxy | 131 | 0.01 | 120 | 0.01 | 8.58 |
IgServ | 123 | 0.01 | 131 | 0.01 | -6.61 |
AOLserver | 122 | 0.01 | 102 | 0.01 | 18.97 |
Unknown | 120 | 0.01 | 115 | 0.01 | 3.79 |
CommerceServer400 | 118 | 0.01 | 119 | 0.01 | -1.37 |
David-WebBox | 108 | 0.01 | 107 | 0.01 | 0.40 |
IBM | 107 | 0.01 | 106 | 0.01 | 0.40 |
SilverStream | 104 | 0.01 | 97 | 0.01 | 6.64 |
NetPresenz | 104 | 0.01 | 107 | 0.01 | -3.32 |
CommuniGatePro | 103 | 0.01 | 100 | 0.01 | 2.45 |
Oracle_Web_Listener_NT_2.1.0.3.1 | 98 | 0.01 | 103 | 0.01 | -5.36 |
Q100 | 96 | 0.01 | 95 | 0.01 | 0.51 |
ALEPH | 93 | 0.01 | 85 | 0.01 | 8.83 |
Lotus | 91 | 0.01 | 95 | 0.01 | -4.72 |
HTTPS | 91 | 0.01 | 96 | 0.01 | -5.71 |
MGI | 88 | 0.01 | 86 | 0.01 | 1.78 |
Apache-1.3.12 | 87 | 0.01 | 85 | 0.01 | 1.81 |
UserLand | 84 | 0.01 | 83 | 0.01 | 0.66 |
HTTP | 80 | 0.01 | 83 | 0.01 | -4.13 |
Oracle_Web_listener3.0 | 79 | 0.01 | 110 | 0.01 | -28.57 |
AppleWSE | 79 | 0.01 | 77 | 0.01 | 2.05 |
Cougar | 78 | 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.