You are viewing an outdated report.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) 59,420,468 hostnames, but only 4,883,144 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	March 2012 Count	March 2012 %	February 2012 Count	February 2012 %	Growth %
Apache	2,890,481	59.19	2,870,067	59.15	0.07
Microsoft-IIS	1,011,255	20.71	1,009,289	20.80	-0.44
null	382,898	7.84	378,870	7.81	0.42
nginx	190,679	3.90	187,188	3.86	1.21
Microsoft-HTTPAPI	74,330	1.52	71,213	1.47	3.71
Apache-Coyote	49,902	1.02	49,568	1.02	0.03
IdeaWebServer	42,165	0.86	41,516	0.86	0.91
Rapidsite	34,850	0.71	36,125	0.74	-4.15
lighttpd	20,859	0.43	20,782	0.43	-0.27
LiteSpeed	20,267	0.42	19,370	0.40	3.96
A	14,733	0.30	14,943	0.31	-2.03
Lotus-Domino	10,891	0.22	10,962	0.23	-1.28
BigIP	7,631	0.16	7,497	0.15	1.14
AkamaiGHost	6,970	0.14	9,358	0.19	-25.99
IBM_HTTP_Server	6,710	0.14	6,733	0.14	-0.98
squid	6,209	0.13	6,665	0.14	-7.44
Oracle-Application-Server-10g	3,677	0.08	3,727	0.08	-1.97
Zope	3,638	0.07	3,682	0.08	-1.83
Resin	3,179	0.07	3,195	0.07	-1.14
HTTPD	2,651	0.05	2,558	0.05	2.97
Cougar	2,265	0.05	2,231	0.05	0.88
Zeus	2,204	0.05	2,212	0.05	-1.00
Sun-ONE-Web-Server	2,202	0.05	2,267	0.05	-3.49
EZproxy	1,887	0.04	1,873	0.04	0.10
Netscape-Enterprise	1,777	0.04	1,818	0.04	-2.88
WDaemon	1,685	0.03	1,749	0.04	-4.27
IceWarp	1,576	0.03	1,582	0.03	-1.02
Web	1,539	0.03	1,501	0.03	1.88
GWS	1,362	0.03	1,384	0.03	-2.22
Varnish	1,240	0.03	1,205	0.02	2.25
-	1,221	0.03	1,307	0.03	-7.18
cloudflare-nginx	1,219	0.02	1,218	0.03	-0.56
III	1,189	0.02	1,185	0.02	-0.30
Cherokee	1,188	0.02	1,173	0.02	0.63
Apachenginx	1,162	0.02	1,139	0.02	1.37
thttpd	1,097	0.02	1,087	0.02	0.28
Apache-AdvancedExtranetServer	1,093	0.02	1,115	0.02	-2.60
apache	1,088	0.02	1,080	0.02	0.10
Sun-Java-System-Web-Server	1,034	0.02	1,072	0.02	-4.16
Oracle	1,011	0.02	887	0.02	13.25
Boa	1,008	0.02	1,018	0.02	-1.61
xServers	946	0.02	909	0.02	3.41
httpd	939	0.02	969	0.02	-3.71
cpsrvd	903	0.02	885	0.02	1.38
CommuniGatePro	869	0.02	869	0.02	-0.64
Jetty	864	0.02	954	0.02	-10.01
Sun	783	0.02	785	0.02	-0.89
Rumpus	780	0.02	753	0.02	2.92
Nginx	748	0.02	748	0.02	-0.64
WWW	729	0.01	735	0.02	-1.45
AnWeb	692	0.01	678	0.01	1.41
WebServerX	670	0.01	665	0.01	0.11
sffe	668	0.01	610	0.01	8.81
Bomgar	661	0.01	640	0.01	2.62
NOYB	648	0.01	651	0.01	-1.10
ListManagerWeb	593	0.01	632	0.01	-6.77
Ipswitch-IMail	560	0.01	581	0.01	-4.23
WebtoB	556	0.01	560	0.01	-1.35
IBM_HTTP_SERVER	555	0.01	553	0.01	-0.28
Server	520	0.01	456	0.01	13.31
BIG-IP	514	0.01	500	0.01	2.14
redir-httpd	513	0.01	513	0.01	-0.64
GlassFish	513	0.01	488	0.01	4.45
4D_WebStar_D	501	0.01	519	0.01	-4.08
FileMakerPro	466	0.01	484	0.01	-4.33
DinaHTTPd	431	0.01	414	0.01	3.44
WebServer	412	0.01	406	0.01	0.83
WebSTAR	409	0.01	436	0.01	-6.79
Abyss	408	0.01	410	0.01	-1.12
AOLserver	408	0.01	414	0.01	-2.08
EdgePrism	406	0.01	408	0.01	-1.13
WebLogic	397	0.01	401	0.01	-1.63
WebSphere	366	0.01	365	0.01	-0.37
FC	362	0.01	431	0.01	-16.55
Unknown	347	0.01	352	0.01	-2.05
WebSite	344	0.01	338	0.01	1.13
PowerSchool	344	0.01	379	0.01	-9.81
kangle	339	0.01	258	0.01	30.56
Tengine	334	0.01	0	0.00	N/A
Oracle-iPlanet-Web-Server	331	0.01	315	0.01	4.41
Oracle-Application-Server-11g	330	0.01	314	0.01	4.42
Indy	328	0.01	323	0.01	0.90
WebSitePro	325	0.01	329	0.01	-1.85
SAP	316	0.01	316	0.01	-0.64
RomPager	312	0.01	291	0.01	6.53
JRun	310	0.01	321	0.01	-4.04
OpenCms	306	0.01	301	0.01	1.01
TWS	302	0.01	307	0.01	-2.26
Secured	302	0.01	301	0.01	-0.31
Roxen	285	0.01	284	0.01	-0.29
HTTP	283	0.01	231	0.00	21.73
Demandware	279	0.01	255	0.01	8.71
CloudFront	278	0.01	506	0.01	-45.41
IIS	274	0.01	265	0.01	2.74
PWS	273	0.01	236	0.00	14.94
WS	262	0.01	251	0.01	3.72
4D_WebSTAR_S	261	0.01	269	0.01	-3.59
SW	243	0.00	257	0.01	-6.05
Power	243	0.00	247	0.01	-2.25
SAMBAR	237	0.00	239	0.00	-1.47

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.