You are viewing an outdated report. The latest version of this report was published on April 1st, 2025

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) 32,318,297 hostnames, but only 3,416,713 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 2008 Count	July 2008 %	June 2008 Count	June 2008 %	Growth %
Apache	1,982,351	58.02	2,040,329	57.93	0.16
Microsoft-IIS	927,337	27.14	954,629	27.10	0.14
null	217,460	6.36	226,033	6.42	-0.82
Rapidsite	63,859	1.87	66,436	1.89	-0.91
Apache-Coyote	23,774	0.70	24,647	0.70	-0.56
IdeaWebServer	18,557	0.54	18,839	0.53	1.55
A	16,274	0.48	16,598	0.47	1.08
lighttpd	14,054	0.41	14,699	0.42	-1.43
nginx	13,408	0.39	14,091	0.40	-1.91
Lotus-Domino	13,336	0.39	13,691	0.39	0.42
Netscape-Enterprise	9,773	0.29	10,065	0.29	0.10
IBM_HTTP_Server	4,851	0.14	5,083	0.14	-1.62
Zope	4,434	0.13	4,542	0.13	0.64
Zeus	4,100	0.12	4,277	0.12	-1.18
WebServer	3,805	0.11	4,066	0.12	-3.53
Sun-ONE-Web-Server	3,792	0.11	3,968	0.11	-1.48
Apache-AdvancedExtranetServer	3,628	0.11	3,748	0.11	-0.21
Oracle-Application-Server-10g	3,344	0.10	3,437	0.10	0.30
squid	3,304	0.10	3,689	0.10	-7.67
Resin	3,175	0.09	3,296	0.09	-0.69
NOYB	3,007	0.09	3,080	0.09	0.65
Cougar	1,948	0.06	2,052	0.06	-2.13
IBM_HTTP_SERVER	1,763	0.05	1,856	0.05	-2.08
GWS	1,745	0.05	1,781	0.05	1.01
Ipswitch-IMail	1,570	0.05	1,604	0.05	0.90
IceWarp	1,550	0.05	1,585	0.04	0.81
Jetty	1,513	0.04	1,552	0.04	0.50
WDaemon	1,454	0.04	1,493	0.04	0.40
WebServerX	1,439	0.04	1,504	0.04	-1.37
Oracle	1,404	0.04	1,430	0.04	1.22
WebSTAR	1,308	0.04	1,331	0.04	1.31
WebLogic	1,216	0.04	1,243	0.04	0.85
LiteSpeed	1,184	0.03	1,286	0.04	-5.09
BigIP	1,163	0.03	1,228	0.03	-2.37
Boa	1,158	0.03	1,169	0.03	2.12
FileMakerPro	1,108	0.03	1,125	0.03	1.53
III	1,040	0.03	1,045	0.03	2.60
WebSite	1,007	0.03	1,033	0.03	0.50
thttpd	1,001	0.03	1,037	0.03	-0.49
EZproxy	986	0.03	1,002	0.03	1.44
BIG-IP	979	0.03	1,023	0.03	-1.34
Web	972	0.03	990	0.03	1.22
CommuniGatePro	970	0.03	1,001	0.03	-0.10
PowerSchool	963	0.03	978	0.03	1.51
Microsoft-HTTPAPI	931	0.03	979	0.03	-1.96
WWW	917	0.03	941	0.03	0.46
AnWeb	881	0.03	1,003	0.03	-9.45
WebSitePro	858	0.03	883	0.03	0.17
4D_WebSTAR_S	794	0.02	807	0.02	1.43
cpsrvd	670	0.02	683	0.02	1.13
4D_WebStar_D	646	0.02	660	0.02	0.90
AOLserver	638	0.02	685	0.02	-3.98
WebtoB	628	0.02	651	0.02	-0.55
httpd+ssl	545	0.02	556	0.02	1.05
ListManagerWeb	524	0.02	531	0.02	1.73
DeleGate	512	0.01	524	0.01	0.73
Stronghold	510	0.01	520	0.01	1.11
redir-httpd	509	0.01	510	0.01	2.89
SAMBAR	504	0.01	524	0.01	-0.84
ENIAC	470	0.01	479	0.01	1.15
httpd	464	0.01	480	0.01	-0.35
Sun-Java-System-Web-Server	461	0.01	476	0.01	-0.16
Oracle9iAS	448	0.01	458	0.01	0.84
NetWare-Enterprise-Web-Server	416	0.01	427	0.01	0.43
Abyss	410	0.01	432	0.01	-2.16
NetCache	401	0.01	448	0.01	-7.73
Roxen	399	0.01	408	0.01	0.82
Blocked	395	0.01	405	0.01	0.54
AkamaiGHost	388	0.01	962	0.03	-58.42
Orion	379	0.01	390	0.01	0.18
""	366	0.01	400	0.01	-5.67
WebSphere	360	0.01	372	0.01	-0.24
JRun	349	0.01	358	0.01	0.50
Ultraseek	342	0.01	351	0.01	0.45
Nost	335	0.01	365	0.01	-5.38
Netscape-FastTrack	315	0.01	319	0.01	1.80
NCSA	310	0.01	313	0.01	2.10
EdgePrism	300	0.01	326	0.01	-5.13
gws	299	0.01	357	0.01	-13.66
Indy	294	0.01	303	0.01	0.03
IBM-HTTP-Server	287	0.01	299	0.01	-1.05
Secured	281	0.01	317	0.01	-8.62
IIS	281	0.01	287	0.01	0.93
Xitami	279	0.01	288	0.01	-0.13
Power	275	0.01	284	0.01	-0.18
OSU	270	0.01	284	0.01	-1.99
Rumpus	253	0.01	257	0.01	1.49
NS_6.1	226	0.01	249	0.01	-6.43
Jeus	224	0.01	232	0.01	-0.46
Sun	220	0.01	230	0.01	-1.39
Server	220	0.01	287	0.01	-20.98
DinaHTTPd	207	0.01	214	0.01	-0.28
Mittwald	206	0.01	207	0.01	2.59
Apache-NeoNova	201	0.01	203	0.01	2.07
FJapache	200	0.01	208	0.01	-0.88
Polaris	199	0.01	202	0.01	1.56
FirstClass	195	0.01	201	0.01	0.01
TimmiT	189	0.01	222	0.01	-12.23
Hanbiro	184	0.01	188	0.01	0.90
Fujitsu-InfoProvider-Pro	173	0.01	179	0.01	-0.37

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.