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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 2012 Count |
May 2012 % |
April 2012 Count |
April 2012 % |
Growth % |
Apache | 2,938,934 | 59.12 | 2,915,637 | 59.25 | -0.22 |
Microsoft-IIS | 1,005,516 | 20.23 | 1,011,793 | 20.56 | -1.62 |
null | 389,407 | 7.83 | 383,154 | 7.79 | 0.61 |
nginx | 206,562 | 4.16 | 198,238 | 4.03 | 3.15 |
Microsoft-HTTPAPI | 81,190 | 1.63 | 77,947 | 1.58 | 3.11 |
Apache-Coyote | 51,348 | 1.03 | 50,426 | 1.02 | 0.80 |
IdeaWebServer | 43,394 | 0.87 | 42,705 | 0.87 | 0.59 |
Rapidsite | 33,280 | 0.67 | 33,776 | 0.69 | -2.46 |
LiteSpeed | 22,082 | 0.44 | 20,884 | 0.42 | 4.67 |
lighttpd | 21,712 | 0.44 | 20,934 | 0.43 | 2.67 |
A | 14,462 | 0.29 | 14,591 | 0.30 | -1.88 |
AkamaiGHost | 11,000 | 0.22 | 4,362 | 0.09 | 149.64 |
Lotus-Domino | 10,826 | 0.22 | 10,887 | 0.22 | -1.56 |
squid | 10,762 | 0.22 | 7,808 | 0.16 | 36.45 |
BigIP | 8,059 | 0.16 | 7,679 | 0.16 | 3.89 |
IBM_HTTP_Server | 6,708 | 0.13 | 6,719 | 0.14 | -1.17 |
Oracle-Application-Server-10g | 3,591 | 0.07 | 3,642 | 0.07 | -2.39 |
Zope | 3,542 | 0.07 | 3,622 | 0.07 | -3.19 |
Resin | 3,155 | 0.06 | 3,170 | 0.06 | -1.48 |
HTTPD | 2,806 | 0.06 | 2,731 | 0.06 | 1.71 |
cloudflare-nginx | 2,395 | 0.05 | 1,303 | 0.03 | 81.96 |
Cougar | 2,256 | 0.05 | 2,163 | 0.04 | 3.25 |
Sun-ONE-Web-Server | 2,159 | 0.04 | 2,166 | 0.04 | -1.33 |
Zeus | 2,155 | 0.04 | 2,175 | 0.04 | -1.92 |
EZproxy | 1,927 | 0.04 | 1,909 | 0.04 | -0.07 |
WDaemon | 1,750 | 0.04 | 1,734 | 0.04 | -0.09 |
Netscape-Enterprise | 1,663 | 0.03 | 1,729 | 0.04 | -4.79 |
IceWarp | 1,599 | 0.03 | 1,577 | 0.03 | 0.37 |
Web | 1,539 | 0.03 | 1,515 | 0.03 | 0.56 |
- | 1,531 | 0.03 | 1,304 | 0.03 | 16.23 |
GWS | 1,329 | 0.03 | 1,348 | 0.03 | -2.40 |
Varnish | 1,307 | 0.03 | 1,259 | 0.03 | 2.77 |
Apachenginx | 1,183 | 0.02 | 1,171 | 0.02 | 0.01 |
III | 1,181 | 0.02 | 1,195 | 0.02 | -2.17 |
Cherokee | 1,172 | 0.02 | 1,183 | 0.02 | -1.93 |
apache | 1,132 | 0.02 | 1,107 | 0.02 | 1.23 |
thttpd | 1,104 | 0.02 | 1,099 | 0.02 | -0.56 |
Apache-AdvancedExtranetServer | 1,038 | 0.02 | 1,076 | 0.02 | -4.50 |
xServers | 1,037 | 0.02 | 995 | 0.02 | 3.17 |
Boa | 1,031 | 0.02 | 1,014 | 0.02 | 0.65 |
Sun-Java-System-Web-Server | 992 | 0.02 | 1,017 | 0.02 | -3.44 |
Oracle | 982 | 0.02 | 1,004 | 0.02 | -3.18 |
httpd | 950 | 0.02 | 949 | 0.02 | -0.90 |
cpsrvd | 925 | 0.02 | 915 | 0.02 | 0.08 |
Jetty | 910 | 0.02 | 852 | 0.02 | 5.73 |
CommuniGatePro | 852 | 0.02 | 863 | 0.02 | -2.27 |
Rumpus | 818 | 0.02 | 790 | 0.02 | 2.50 |
Sun | 792 | 0.02 | 780 | 0.02 | 0.52 |
Nginx | 767 | 0.02 | 749 | 0.02 | 1.37 |
sffe | 725 | 0.01 | 734 | 0.01 | -2.22 |
WWW | 701 | 0.01 | 716 | 0.01 | -3.08 |
Bomgar | 671 | 0.01 | 664 | 0.01 | 0.04 |
AnWeb | 645 | 0.01 | 666 | 0.01 | -4.13 |
WebServerX | 624 | 0.01 | 660 | 0.01 | -6.41 |
NOYB | 609 | 0.01 | 650 | 0.01 | -7.25 |
ListManagerWeb | 585 | 0.01 | 599 | 0.01 | -3.32 |
WebtoB | 549 | 0.01 | 554 | 0.01 | -1.90 |
GlassFish | 548 | 0.01 | 529 | 0.01 | 2.55 |
kangle | 547 | 0.01 | 401 | 0.01 | 35.04 |
Ipswitch-IMail | 540 | 0.01 | 556 | 0.01 | -3.86 |
Tengine | 533 | 0.01 | 455 | 0.01 | 15.96 |
IBM_HTTP_SERVER | 513 | 0.01 | 544 | 0.01 | -6.65 |
redir-httpd | 511 | 0.01 | 512 | 0.01 | -1.20 |
Server | 504 | 0.01 | 496 | 0.01 | 0.59 |
4D_WebStar_D | 478 | 0.01 | 486 | 0.01 | -2.64 |
FileMakerPro | 462 | 0.01 | 465 | 0.01 | -1.65 |
DinaHTTPd | 430 | 0.01 | 429 | 0.01 | -0.78 |
FC | 416 | 0.01 | 409 | 0.01 | 0.69 |
Abyss | 409 | 0.01 | 405 | 0.01 | -0.03 |
EdgePrism | 408 | 0.01 | 426 | 0.01 | -5.19 |
CloudFront | 406 | 0.01 | 262 | 0.01 | 53.40 |
Oracle-Application-Server-11g | 404 | 0.01 | 355 | 0.01 | 12.66 |
AOLserver | 401 | 0.01 | 409 | 0.01 | -2.94 |
WebSTAR | 398 | 0.01 | 397 | 0.01 | -0.76 |
WebServer | 382 | 0.01 | 400 | 0.01 | -5.46 |
WebLogic | 381 | 0.01 | 378 | 0.01 | -0.22 |
WebSphere | 364 | 0.01 | 363 | 0.01 | -0.73 |
Oracle-iPlanet-Web-Server | 363 | 0.01 | 355 | 0.01 | 1.22 |
Unknown | 349 | 0.01 | 338 | 0.01 | 2.21 |
SAP | 326 | 0.01 | 323 | 0.01 | -0.09 |
TWS | 324 | 0.01 | 313 | 0.01 | 2.47 |
OpenCms | 318 | 0.01 | 311 | 0.01 | 1.22 |
Indy | 318 | 0.01 | 322 | 0.01 | -2.24 |
HTTP | 316 | 0.01 | 307 | 0.01 | 1.90 |
WebSitePro | 308 | 0.01 | 314 | 0.01 | -2.90 |
PowerSchool | 308 | 0.01 | 306 | 0.01 | -0.36 |
Secured | 306 | 0.01 | 306 | 0.01 | -1.01 |
JRun | 303 | 0.01 | 309 | 0.01 | -2.93 |
Demandware | 299 | 0.01 | 289 | 0.01 | 2.42 |
Power | 289 | 0.01 | 271 | 0.01 | 5.57 |
RomPager | 284 | 0.01 | 308 | 0.01 | -8.72 |
Roxen | 279 | 0.01 | 283 | 0.01 | -2.41 |
WS | 273 | 0.01 | 265 | 0.01 | 1.98 |
WebSite | 272 | 0.01 | 318 | 0.01 | -15.33 |
IIS | 270 | 0.01 | 267 | 0.01 | 0.11 |
SW | 262 | 0.01 | 269 | 0.01 | -3.58 |
PWS | 254 | 0.01 | 255 | 0.01 | -1.39 |
BIG-IP | 248 | 0.00 | 526 | 0.01 | -53.33 |
4D_WebSTAR_S | 243 | 0.00 | 242 | 0.00 | -0.60 |
eYouWS | 233 | 0.00 | 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.