You are viewing an outdated report.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) 31,763,451 hostnames, but only 3,522,287 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	June 2008 Count	June 2008 %	May 2008 Count	May 2008 %	Growth %
Apache	2,040,329	57.93	2,019,893	57.89	0.06
Microsoft-IIS	954,629	27.10	948,730	27.19	-0.32
null	226,033	6.42	221,658	6.35	1.02
Rapidsite	66,436	1.89	67,180	1.93	-2.04
Apache-Coyote	24,647	0.70	23,932	0.69	2.02
IdeaWebServer	18,839	0.53	18,391	0.53	1.48
A	16,598	0.47	16,420	0.47	0.14
lighttpd	14,699	0.42	14,247	0.41	2.20
nginx	14,091	0.40	13,091	0.38	6.63
Lotus-Domino	13,691	0.39	13,573	0.39	-0.08
Netscape-Enterprise	10,065	0.29	10,284	0.29	-3.05
IBM_HTTP_Server	5,083	0.14	4,986	0.14	0.99
Zope	4,542	0.13	4,548	0.13	-1.07
Zeus	4,277	0.12	4,326	0.12	-2.06
WebServer	4,066	0.12	4,137	0.12	-2.64
Sun-ONE-Web-Server	3,968	0.11	3,964	0.11	-0.84
Apache-AdvancedExtranetServer	3,748	0.11	3,878	0.11	-4.26
squid	3,689	0.10	3,506	0.10	4.23
Oracle-Application-Server-10g	3,437	0.10	3,372	0.10	0.97
Resin	3,296	0.09	3,280	0.09	-0.45
NOYB	3,080	0.09	3,168	0.09	-3.69
Cougar	2,052	0.06	2,058	0.06	-1.23
IBM_HTTP_SERVER	1,856	0.05	1,882	0.05	-2.31
GWS	1,781	0.05	1,735	0.05	1.69
Ipswitch-IMail	1,604	0.05	1,646	0.05	-3.47
IceWarp	1,585	0.04	1,586	0.05	-1.00
Jetty	1,552	0.04	1,543	0.04	-0.36
WebServerX	1,504	0.04	1,596	0.05	-6.65
WDaemon	1,493	0.04	1,484	0.04	-0.34
Oracle	1,430	0.04	1,426	0.04	-0.66
WebSTAR	1,331	0.04	1,383	0.04	-4.66
LiteSpeed	1,286	0.04	1,136	0.03	12.14
WebLogic	1,243	0.04	1,241	0.04	-0.78
BigIP	1,228	0.03	1,081	0.03	12.53
Boa	1,169	0.03	1,187	0.03	-2.44
FileMakerPro	1,125	0.03	1,123	0.03	-0.76
III	1,045	0.03	1,050	0.03	-1.41
thttpd	1,037	0.03	1,038	0.03	-1.03
WebSite	1,033	0.03	1,064	0.03	-3.82
BIG-IP	1,023	0.03	1,037	0.03	-2.28
AnWeb	1,003	0.03	1,019	0.03	-2.49
EZproxy	1,002	0.03	980	0.03	1.29
CommuniGatePro	1,001	0.03	1,009	0.03	-1.72
Web	990	0.03	920	0.03	6.60
Microsoft-HTTPAPI	979	0.03	759	0.02	27.78
PowerSchool	978	0.03	1,000	0.03	-3.12
AkamaiGHost	962	0.03	1,064	0.03	-10.43
WWW	941	0.03	496	0.01	87.94
WebSitePro	883	0.03	912	0.03	-4.09
4D_WebSTAR_S	807	0.02	832	0.02	-3.91
AOLserver	685	0.02	696	0.02	-2.50
cpsrvd	683	0.02	662	0.02	2.20
4D_WebStar_D	660	0.02	634	0.02	3.12
WebtoB	651	0.02	637	0.02	1.24
httpd+ssl	556	0.02	572	0.02	-3.71
ListManagerWeb	531	0.02	523	0.01	0.58
SAMBAR	524	0.01	540	0.02	-3.87
DeleGate	524	0.01	522	0.01	-0.56
Stronghold	520	0.01	549	0.02	-6.17
redir-httpd	510	0.01	512	0.01	-1.32
httpd	480	0.01	462	0.01	2.92
ENIAC	479	0.01	430	0.01	10.35
Sun-Java-System-Web-Server	476	0.01	441	0.01	6.92
Oracle9iAS	458	0.01	458	0.01	-0.94
NetCache	448	0.01	447	0.01	-0.72
Abyss	432	0.01	457	0.01	-6.36
NetWare-Enterprise-Web-Server	427	0.01	435	0.01	-2.76
Roxen	408	0.01	408	0.01	-0.94
Blocked	405	0.01	344	0.01	16.63
""	400	0.01	387	0.01	2.39
Orion	390	0.01	388	0.01	-0.43
WebSphere	372	0.01	368	0.01	0.14
Nost	365	0.01	393	0.01	-8.00
JRun	358	0.01	344	0.01	3.09
gws	357	0.01	294	0.01	20.29
Ultraseek	351	0.01	358	0.01	-2.87
EdgePrism	326	0.01	994	0.03	-67.51
Netscape-FastTrack	319	0.01	345	0.01	-8.40
Secured	317	0.01	288	0.01	9.04
NCSA	313	0.01	321	0.01	-3.41
Indy	303	0.01	284	0.01	5.69
IBM-HTTP-Server	299	0.01	300	0.01	-1.27
Xitami	288	0.01	297	0.01	-3.94
Server	287	0.01	283	0.01	0.46
IIS	287	0.01	313	0.01	-9.17
Power	284	0.01	303	0.01	-7.15
OSU	284	0.01	299	0.01	-5.91
Rumpus	257	0.01	235	0.01	8.34
NS_6.1	249	0.01	253	0.01	-2.50
Jeus	232	0.01	230	0.01	-0.08
Sun	230	0.01	202	0.01	12.79
TimmiT	222	0.01	0	0.00	N/A
DinaHTTPd	214	0.01	205	0.01	3.41
FJapache	208	0.01	204	0.01	1.00
Mittwald	207	0.01	279	0.01	-26.50
Apache-NeoNova	203	0.01	203	0.01	-0.94
Polaris	202	0.01	202	0.01	-0.94
FirstClass	201	0.01	205	0.01	-2.87
Hanbiro	188	0.01	0	0.00	N/A
Fujitsu-InfoProvider-Pro	179	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.