You are viewing an outdated report. The latest version of this report was published on December 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) 65,635,021 hostnames, but only 5,215,937 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 2013 Count	February 2013 %	January 2013 Count	January 2013 %	Growth %
Apache	3,055,899	58.59	3,046,575	58.65	-0.11
Microsoft-IIS	1,016,588	19.49	1,017,520	19.59	-0.51
null	416,109	7.98	413,975	7.97	0.10
nginx	266,528	5.11	258,573	4.98	2.65
Microsoft-HTTPAPI	105,683	2.03	102,840	1.98	2.34
Apache-Coyote	55,438	1.06	54,860	1.06	0.63
IdeaWebServer	47,896	0.92	47,484	0.91	0.45
Rapidsite	27,496	0.53	27,868	0.54	-1.75
LiteSpeed	26,763	0.51	26,540	0.51	0.42
lighttpd	21,117	0.40	21,305	0.41	-1.30
A	13,124	0.25	13,237	0.25	-1.27
BigIP	10,276	0.20	9,930	0.19	3.05
Lotus-Domino	10,174	0.20	10,282	0.20	-1.46
squid	7,182	0.14	7,120	0.14	0.45
IBM_HTTP_Server	6,592	0.13	6,713	0.13	-2.21
AkamaiGHost	5,716	0.11	6,784	0.13	-16.09
cloudflare-nginx	5,254	0.10	5,032	0.10	3.98
HTTPD	3,515	0.07	3,424	0.07	2.23
Zope	3,350	0.06	3,408	0.07	-2.11
Oracle-Application-Server-10g	3,269	0.06	3,306	0.06	-1.53
Resin	2,983	0.06	3,025	0.06	-1.80
EZproxy	2,112	0.04	2,088	0.04	0.73
Cougar	1,957	0.04	1,978	0.04	-1.47
Zeus	1,828	0.04	1,860	0.04	-2.13
Sun-ONE-Web-Server	1,827	0.04	1,862	0.04	-2.29
-	1,816	0.03	1,881	0.04	-3.86
WDaemon	1,737	0.03	1,738	0.03	-0.47
Varnish	1,672	0.03	1,633	0.03	1.96
Web	1,617	0.03	1,622	0.03	-0.72
IceWarp	1,554	0.03	1,555	0.03	-0.48
xServers	1,383	0.03	1,346	0.03	2.32
Tengine	1,350	0.03	1,210	0.02	11.11
kangle	1,347	0.03	1,264	0.02	6.12
Netscape-Enterprise	1,334	0.03	1,385	0.03	-4.08
III	1,196	0.02	1,198	0.02	-0.58
hosting	1,153	0.02	1,036	0.02	10.83
GWS	1,125	0.02	1,154	0.02	-2.92
MochiWeb	1,120	0.02	1,035	0.02	7.76
Cherokee	1,081	0.02	1,082	0.02	-0.51
thttpd	1,049	0.02	1,053	0.02	-0.80
sffe	957	0.02	815	0.02	16.93
Boa	950	0.02	949	0.02	-0.31
Nginx	946	0.02	911	0.02	3.41
Rumpus	935	0.02	916	0.02	1.65
Oracle	919	0.02	932	0.02	-1.81
cpsrvd	901	0.02	902	0.02	-0.53
Apache-AdvancedExtranetServer	867	0.02	888	0.02	-2.77
Sun-Java-System-Web-Server	837	0.02	872	0.02	-4.41
httpd	809	0.02	839	0.02	-3.98
CommuniGatePro	801	0.02	802	0.02	-0.54
GlassFish	775	0.01	758	0.01	1.82
Bomgar	758	0.01	736	0.01	2.56
Sun	754	0.01	741	0.01	1.33
Jetty	714	0.01	713	0.01	-0.28
WebServer	649	0.01	651	0.01	-0.72
WWW	638	0.01	651	0.01	-2.41
Oracle-Application-Server-11g	603	0.01	583	0.01	3.00
AnWeb	595	0.01	567	0.01	4.50
WebServerX	569	0.01	552	0.01	2.65
FC	569	0.01	548	0.01	3.40
smartcds	562	0.01	507	0.01	10.39
NOYB	537	0.01	544	0.01	-1.70
ApacheBooster	525	0.01	448	0.01	16.70
redir-httpd	514	0.01	514	0.01	-0.42
Server	505	0.01	507	0.01	-0.81
WebtoB	481	0.01	492	0.01	-2.64
Abyss	444	0.01	435	0.01	1.64
ListManagerWeb	442	0.01	461	0.01	-4.52
Ipswitch-IMail	439	0.01	454	0.01	-3.71
IBM_HTTP_SERVER	433	0.01	438	0.01	-1.55
EdgePrism	419	0.01	412	0.01	1.28
CloudFront	419	0.01	514	0.01	-18.82
Oracle-iPlanet-Web-Server	412	0.01	398	0.01	3.09
FlashCom	410	0.01	393	0.01	3.89
DinaHTTPd	401	0.01	418	0.01	-4.47
FileMakerPro	388	0.01	391	0.01	-1.18
Demandware	387	0.01	385	0.01	0.10
AOLserver	374	0.01	376	0.01	-0.95
4D_WebStar_D	374	0.01	388	0.01	-4.01
WebSphere	373	0.01	369	0.01	0.66
TWS	373	0.01	370	0.01	0.39
HTTP	369	0.01	373	0.01	-1.48
Unknown	364	0.01	391	0.01	-7.29
PWS	358	0.01	295	0.01	20.85
SAP	357	0.01	356	0.01	-0.14
WebSTAR	336	0.01	342	0.01	-2.16
WS	312	0.01	303	0.01	2.54
WebLogic	309	0.01	320	0.01	-3.84
*****************	308	0.01	312	0.01	-1.69
Indy	302	0.01	308	0.01	-2.36
OpenCms	298	0.01	300	0.01	-1.08
Kucci	298	0.01	515	0.01	-42.38
Google	296	0.01	288	0.01	2.35
SonicWALL	290	0.01	286	0.01	0.98
WP	281	0.01	274	0.01	2.13
Secured	281	0.01	282	0.01	-0.77
WebSite	279	0.01	293	0.01	-5.17
AmazonS3	276	0.01	274	0.01	0.31
eYouWS	274	0.01	266	0.01	2.58
Roxen	269	0.01	269	0.01	-0.42

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.