You are viewing an outdated report.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) 59,074,598 hostnames, but only 4,851,971 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	February 2012 Count	February 2012 %	January 2012 Count	January 2012 %	Growth %
Apache	2,870,067	59.15	2,852,131	59.43	-0.46
Microsoft-IIS	1,009,289	20.80	1,005,972	20.96	-0.76
null	378,870	7.81	369,172	7.69	1.52
nginx	187,188	3.86	179,340	3.74	3.25
Microsoft-HTTPAPI	71,213	1.47	67,855	1.41	3.81
Apache-Coyote	49,568	1.02	48,198	1.00	1.73
IdeaWebServer	41,516	0.86	40,967	0.85	0.24
Rapidsite	36,125	0.74	37,525	0.78	-4.77
lighttpd	20,782	0.43	20,655	0.43	-0.47
LiteSpeed	19,370	0.40	18,719	0.39	2.36
A	14,943	0.31	15,071	0.31	-1.92
Lotus-Domino	10,962	0.23	11,001	0.23	-1.43
AkamaiGHost	9,358	0.19	2,898	0.06	219.42
BigIP	7,497	0.15	7,256	0.15	2.20
IBM_HTTP_Server	6,733	0.14	6,719	0.14	-0.88
squid	6,665	0.14	5,804	0.12	13.59
Oracle-Application-Server-10g	3,727	0.08	3,791	0.08	-2.75
Zope	3,682	0.08	3,726	0.08	-2.25
Resin	3,195	0.07	3,182	0.07	-0.68
HTTPD	2,558	0.05	2,457	0.05	2.98
Sun-ONE-Web-Server	2,267	0.05	2,293	0.05	-2.20
Cougar	2,231	0.05	2,232	0.05	-1.13
Zeus	2,212	0.05	2,279	0.05	-3.99
EZproxy	1,873	0.04	1,852	0.04	0.04
Netscape-Enterprise	1,818	0.04	1,882	0.04	-4.45
WDaemon	1,749	0.04	1,706	0.04	1.41
IceWarp	1,582	0.03	1,580	0.03	-0.96
Web	1,501	0.03	1,502	0.03	-1.15
GWS	1,384	0.03	1,373	0.03	-0.29
-	1,307	0.03	1,093	0.02	18.29
cloudflare-nginx	1,218	0.03	1,028	0.02	17.20
Varnish	1,205	0.02	1,193	0.02	-0.09
III	1,185	0.02	1,186	0.02	-1.17
Cherokee	1,173	0.02	1,169	0.02	-0.74
Apachenginx	1,139	0.02	1,030	0.02	9.39
Apache-AdvancedExtranetServer	1,115	0.02	1,128	0.02	-2.22
thttpd	1,087	0.02	1,076	0.02	-0.07
apache	1,080	0.02	1,058	0.02	0.97
Sun-Java-System-Web-Server	1,072	0.02	1,090	0.02	-2.72
Boa	1,018	0.02	993	0.02	1.41
httpd	969	0.02	1,012	0.02	-5.29
Jetty	954	0.02	873	0.02	8.10
xServers	909	0.02	848	0.02	6.03
Oracle	887	0.02	1,012	0.02	-13.30
cpsrvd	885	0.02	882	0.02	-0.75
CommuniGatePro	869	0.02	878	0.02	-2.10
Sun	785	0.02	778	0.02	-0.19
Rumpus	753	0.02	733	0.02	1.62
Nginx	748	0.02	754	0.02	-1.87
WWW	735	0.02	717	0.01	1.40
AnWeb	678	0.01	711	0.01	-5.67
WebServerX	665	0.01	708	0.01	-7.09
NOYB	651	0.01	665	0.01	-3.16
Bomgar	640	0.01	634	0.01	-0.15
ListManagerWeb	632	0.01	650	0.01	-3.82
sffe	610	0.01	731	0.02	-17.46
Ipswitch-IMail	581	0.01	586	0.01	-1.93
WebtoB	560	0.01	578	0.01	-4.16
IBM_HTTP_SERVER	553	0.01	562	0.01	-2.67
4D_WebStar_D	519	0.01	536	0.01	-4.22
redir-httpd	513	0.01	513	0.01	-1.08
CloudFront	506	0.01	0	0.00	N/A
BIG-IP	500	0.01	495	0.01	-0.08
GlassFish	488	0.01	458	0.01	5.40
FileMakerPro	484	0.01	497	0.01	-3.67
Server	456	0.01	461	0.01	-2.15
WebSTAR	436	0.01	452	0.01	-4.58
FC	431	0.01	434	0.01	-1.77
DinaHTTPd	414	0.01	392	0.01	4.47
AOLserver	414	0.01	422	0.01	-2.96
Abyss	410	0.01	405	0.01	0.14
EdgePrism	408	0.01	399	0.01	1.15
WebServer	406	0.01	452	0.01	-11.15
WebLogic	401	0.01	384	0.01	3.30
PowerSchool	379	0.01	427	0.01	-12.20
WebSphere	365	0.01	364	0.01	-0.81
Unknown	352	0.01	359	0.01	-3.01
WebSite	338	0.01	361	0.01	-7.38
WebSitePro	329	0.01	332	0.01	-1.98
Indy	323	0.01	316	0.01	1.11
JRun	321	0.01	324	0.01	-2.00
SAP	316	0.01	314	0.01	-0.45
Oracle-iPlanet-Web-Server	315	0.01	291	0.01	7.08
Oracle-Application-Server-11g	314	0.01	272	0.01	14.19
TWS	307	0.01	0	0.00	N/A
Secured	301	0.01	306	0.01	-2.70
OpenCms	301	0.01	303	0.01	-1.74
RomPager	291	0.01	268	0.01	7.41
Roxen	284	0.01	292	0.01	-3.79
4D_WebSTAR_S	269	0.01	269	0.01	-1.08
IIS	265	0.01	253	0.01	3.61
kangle	258	0.01	213	0.00	19.82
SW	257	0.01	236	0.00	7.72
Demandware	255	0.01	0	0.00	N/A
WS	251	0.01	249	0.01	-0.29
Power	247	0.01	249	0.01	-1.88
SAMBAR	239	0.00	245	0.01	-3.50
PWS	236	0.00	236	0.00	-1.08
unknown	235	0.00	229	0.00	1.51
HTTP	231	0.00	230	0.00	-0.65

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.