You are viewing an outdated report. The latest version of this report was published on October 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) 37,747,604 hostnames, but only 3,778,466 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 2009 Count	June 2009 %	May 2009 Count	May 2009 %	Growth %
Apache	2,195,770	58.11	2,140,104	58.04	0.12
Microsoft-IIS	977,915	25.88	956,948	25.95	-0.28
null	271,957	7.20	263,433	7.14	0.74
Rapidsite	57,033	1.51	57,375	1.56	-3.00
nginx	32,874	0.87	30,056	0.82	6.73
Apache-Coyote	30,442	0.81	28,879	0.78	2.86
IdeaWebServer	24,739	0.65	23,476	0.64	2.83
lighttpd	18,238	0.48	17,464	0.47	1.90
A	17,604	0.47	17,352	0.47	-1.00
Lotus-Domino	12,718	0.34	12,727	0.35	-2.49
Microsoft-HTTPAPI	7,647	0.20	6,483	0.18	15.10
IBM_HTTP_Server	6,029	0.16	5,862	0.16	0.36
Netscape-Enterprise	5,107	0.14	8,286	0.22	-39.86
Zope	4,550	0.12	4,507	0.12	-1.49
squid	4,387	0.12	4,291	0.12	-0.24
LiteSpeed	4,034	0.11	3,575	0.10	10.11
Zeus	3,859	0.10	3,848	0.10	-2.14
Oracle-Application-Server-10g	3,827	0.10	3,786	0.10	-1.36
Sun-ONE-Web-Server	3,750	0.10	3,763	0.10	-2.76
Resin	3,386	0.09	3,356	0.09	-1.55
AkamaiGHost	2,820	0.07	2,449	0.07	12.36
BigIP	2,656	0.07	2,502	0.07	3.59
Apache-AdvancedExtranetServer	2,583	0.07	2,649	0.07	-4.85
Cougar	2,269	0.06	2,160	0.06	2.50
GWS	2,005	0.05	1,949	0.05	0.38
WebServer	1,832	0.05	1,995	0.05	-10.39
NOYB	1,733	0.05	1,668	0.05	1.38
WDaemon	1,581	0.04	1,537	0.04	0.37
IceWarp	1,575	0.04	1,543	0.04	-0.40
Jetty	1,520	0.04	1,485	0.04	-0.12
WWW	1,455	0.04	1,399	0.04	1.49
IBM_HTTP_SERVER	1,416	0.04	1,440	0.04	-4.05
WebServerX	1,393	0.04	1,531	0.04	-11.22
Oracle	1,270	0.03	1,272	0.03	-2.57
EZproxy	1,235	0.03	1,205	0.03	0.01
Ipswitch-IMail	1,231	0.03	1,261	0.03	-4.74
Boa	1,202	0.03	1,207	0.03	-2.82
Web	1,183	0.03	1,118	0.03	3.25
thttpd	1,154	0.03	1,116	0.03	0.90
III	1,107	0.03	1,096	0.03	-1.44
WebLogic	1,078	0.03	1,074	0.03	-2.06
PowerSchool	1,052	0.03	1,042	0.03	-1.48
WebSTAR	985	0.03	1,026	0.03	-6.32
CommuniGatePro	968	0.03	971	0.03	-2.72
AnWeb	962	0.03	951	0.03	-1.29
Sun-Java-System-Web-Server	936	0.02	847	0.02	7.83
FileMakerPro	867	0.02	897	0.02	-5.68
httpd	825	0.02	814	0.02	-1.10
BIG-IP	820	0.02	828	0.02	-3.36
cpsrvd	711	0.02	697	0.02	-0.46
4D_WebStar_D	691	0.02	674	0.02	0.04
WebSitePro	661	0.02	686	0.02	-5.98
ListManagerWeb	643	0.02	622	0.02	0.87
WebtoB	640	0.02	637	0.02	-1.96
AOLserver	606	0.02	603	0.02	-1.93
4D_WebSTAR_S	585	0.02	632	0.02	-9.68
WebSite	576	0.02	581	0.02	-3.26
gws	573	0.02	552	0.01	1.29
DeleGate	526	0.01	523	0.01	-1.86
ThirdSphere	515	0.01	520	0.01	-3.36
redir-httpd	513	0.01	513	0.01	-2.42
HTTPD	495	0.01	476	0.01	1.47
lighttpd-yt	462	0.01	521	0.01	-13.47
Sun	455	0.01	410	0.01	8.29
Abyss	426	0.01	416	0.01	-0.07
Power	424	0.01	381	0.01	8.59
Nost	423	0.01	417	0.01	-1.02
JRun	421	0.01	412	0.01	-0.29
SAMBAR	418	0.01	431	0.01	-5.36
""	412	0.01	422	0.01	-4.73
Blocked	399	0.01	421	0.01	-7.52
WebSphere	390	0.01	375	0.01	1.48
Secured	382	0.01	395	0.01	-5.63
Stronghold	376	0.01	381	0.01	-3.70
Roxen	376	0.01	370	0.01	-0.84
NetCache	373	0.01	386	0.01	-5.71
Rumpus	362	0.01	327	0.01	8.02
Oracle9iAS	328	0.01	342	0.01	-6.41
Orion	327	0.01	317	0.01	0.66
ENIAC	322	0.01	317	0.01	-0.88
Indy	320	0.01	303	0.01	3.05
Ultraseek	317	0.01	324	0.01	-4.53
Server	301	0.01	284	0.01	3.42
Powered	291	0.01	262	0.01	8.38
IIS	272	0.01	274	0.01	-3.13
NCSA	269	0.01	264	0.01	-0.57
NetWare-Enterprise-Web-Server	267	0.01	279	0.01	-6.62
OSU	249	0.01	254	0.01	-4.34
Xitami	246	0.01	236	0.01	1.71
CoralWebPrx	240	0.01	253	0.01	-7.43
SAP	231	0.01	223	0.01	1.08
Kerio	218	0.01	210	0.01	1.30
Netscape-FastTrack	212	0.01	225	0.01	-8.06
Hanbiro	204	0.01	202	0.01	-1.45
FJapache	199	0.01	198	0.01	-1.93
SegPache	197	0.01	0	0.00	N/A
JS	196	0.01	0	0.00	N/A
Apache-NeoNova	195	0.01	0	0.00	N/A
Polaris	194	0.01	200	0.01	-5.35
EdgePrism	192	0.01	206	0.01	-9.05

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.