You are viewing an outdated report. The latest version of this report was published on September 1st, 2024

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:

• How does one treat wildcarded DNS sites that generate unlimited number of unique hostnames, all residing on the same system?
• How does one treat taste-testing web sites that do not have any unique content on them at all?
• If very large number of web sites reside on a single IP address, is it a a case of search engine spamming, a large number of low traffic web sites on a single platform, or a web hosting facility using load-redirection for a large number of legitimate web sites?
• How "greedy" or aggressive should the hunt for new web sites be?

All of the above are issues that our conventional web server survey deals with. The biggest issue that comes up time and again, however, is the fact that our conventional survey counts unique hostnames, not unique installations. This can seriously impact market share statistics. Case in point: the data set used both web server survey reports contains (for the last month's data set) 24,859,287 hostnames, but only 3,207,446 distinct IP addresses.

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:

• A load balanced network of servers might share a single public facing IP address, and be undercounted.
• A single server may have multiple public IP addresses bound to one or more network cards on the system, and thus still be counted more than once.

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	July 2007 Count	July 2007 %	June 2007 Count	June 2007 %	Growth %
Apache	1,846,498	57.57	1,827,237	57.26	0.55
Microsoft-IIS	913,400	28.48	915,269	28.68	-0.70
null	180,114	5.62	182,658	5.72	-1.89
Rapidsite	66,252	2.07	66,053	2.07	-0.20
Apache-Coyote	18,501	0.58	18,067	0.57	1.89
A	14,421	0.45	14,306	0.45	0.30
Lotus-Domino	14,161	0.44	14,278	0.45	-1.32
IdeaWebServer	13,291	0.41	12,927	0.41	2.30
Netscape-Enterprise	12,203	0.38	12,381	0.39	-1.93
lighttpd	5,853	0.18	5,541	0.17	5.10
nginx	5,569	0.17	5,273	0.17	5.08
Apache-AdvancedExtranetServer	5,203	0.16	5,418	0.17	-4.45
NOYB	4,866	0.15	5,376	0.17	-9.94
Zeus	4,634	0.14	4,652	0.15	-0.89
Zope	4,263	0.13	4,246	0.13	-0.10
IBM_HTTP_Server	4,209	0.13	4,132	0.13	1.35
Sun-ONE-Web-Server	3,879	0.12	3,898	0.12	-0.99
WebServer	3,813	0.12	3,787	0.12	0.18
Resin	3,014	0.09	2,969	0.09	1.01
Oracle-Application-Server-10g	2,889	0.09	2,805	0.09	2.48
squid	2,681	0.08	2,581	0.08	3.35
IBM_HTTP_SERVER	2,181	0.07	2,243	0.07	-3.25
Ipswitch-IMail	2,071	0.06	2,161	0.07	-4.65
WebSTAR	1,866	0.06	1,945	0.06	-4.54
Cougar	1,822	0.06	1,800	0.06	0.71
Oracle	1,570	0.05	1,561	0.05	0.07
Jetty	1,545	0.05	1,546	0.05	-0.57
GWS	1,477	0.05	1,437	0.05	2.27
IceWarp	1,449	0.05	1,456	0.05	-0.98
WebLogic	1,383	0.04	1,316	0.04	4.56
WDaemon	1,373	0.04	1,348	0.04	1.34
FileMakerPro	1,264	0.04	1,315	0.04	-4.36
WebServerX	1,262	0.04	1,149	0.04	9.28
BIG-IP	1,245	0.04	1,200	0.04	3.23
WebSitePro	1,237	0.04	1,278	0.04	-3.69
Boa	1,209	0.04	1,243	0.04	-3.22
WebSite	1,185	0.04	1,200	0.04	-1.75
AnWeb	1,048	0.03	1,043	0.03	-0.02
thttpd	1,035	0.03	1,027	0.03	0.27
4D_WebSTAR_S	1,029	0.03	1,048	0.03	-2.31
III	1,002	0.03	1,000	0.03	-0.30
CommuniGatePro	979	0.03	979	0.03	-0.50
httpd+ssl	895	0.03	922	0.03	-3.42
EZproxy	805	0.03	791	0.02	1.26
AkamaiGHost	757	0.02	723	0.02	4.18
AOLserver	752	0.02	754	0.02	-0.77
Web	716	0.02	692	0.02	2.95
PowerSchool	709	0.02	736	0.02	-4.15
Stronghold	696	0.02	724	0.02	-4.35
LiteSpeed	626	0.02	538	0.02	15.77
4D_WebStar_D	601	0.02	613	0.02	-2.45
NetWare-Enterprise-Web-Server	600	0.02	600	0.02	-0.50
cpsrvd	592	0.02	586	0.02	0.52
Oracle9iAS	587	0.02	604	0.02	-3.30
SAMBAR	583	0.02	586	0.02	-1.01
WebtoB	560	0.02	546	0.02	2.05
EdgePrism	553	0.02	551	0.02	-0.14
DeleGate	541	0.02	539	0.02	-0.13
NetCache	524	0.02	511	0.02	2.03
Netscape-FastTrack	517	0.02	516	0.02	-0.31
redir-httpd	509	0.02	509	0.02	-0.50
Orion	477	0.01	475	0.01	-0.08
Roxen	434	0.01	440	0.01	-1.86
NCSA	406	0.01	417	0.01	-3.13
ListManagerWeb	399	0.01	391	0.01	1.53
IBM-HTTP-Server	391	0.01	407	0.01	-4.41
WebSphere	376	0.01	373	0.01	0.30
Ultraseek	369	0.01	377	0.01	-2.61
Abyss	351	0.01	377	0.01	-7.36
OSU	341	0.01	348	0.01	-2.50
Xitami	340	0.01	337	0.01	0.38
Acenet	327	0.01	329	0.01	-1.11
FirstClass	325	0.01	356	0.01	-9.17
Power	302	0.01	281	0.01	6.93
httpd	299	0.01	262	0.01	13.55
Nost	292	0.01	284	0.01	2.30
JRun	285	0.01	276	0.01	2.74
""	285	0.01	255	0.01	11.20
ENIAC	263	0.01	262	0.01	-0.12
Indy	260	0.01	253	0.01	2.25
AppleShareIP	249	0.01	277	0.01	-10.56
IIS	244	0.01	238	0.01	2.01
Microsoft-HTTPAPI	236	0.01	217	0.01	8.21
NS_6.1	232	0.01	201	0.01	14.84
Jeus	232	0.01	248	0.01	-6.92
Server	229	0.01	188	0.01	21.20
WWW	220	0.01	232	0.01	-5.65
Secured	215	0.01	224	0.01	-4.50
Sun-Java-System-Web-Server	209	0.01	172	0.01	20.90
Tcl-Webserver	202	0.01	206	0.01	-2.43
Polaris	201	0.01	195	0.01	2.56
Mittwald	190	0.01	182	0.01	3.87
Apache-NeoNova	182	0.01	183	0.01	-1.05
UserLand	179	0.01	187	0.01	-4.76
Webserver	176	0.01	175	0.01	0.07
FJapache	175	0.01	165	0.01	5.53
Blocked	174	0.01	170	0.01	1.84
HPWB	173	0.01	179	0.01	-3.84
Powered	170	0.01	173	0.01	-2.23
Fujitsu-InfoProvider-Pro	167	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.