You are viewing an outdated report. The latest version of this report was published on March 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) 64,476,699 hostnames, but only 5,153,146 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	December 2012 Count	December 2012 %	November 2012 Count	November 2012 %	Growth %
Apache	3,028,465	58.77	3,025,440	58.87	-0.17
Microsoft-IIS	1,010,221	19.60	1,013,549	19.72	-0.59
null	412,047	8.00	408,718	7.95	0.55
nginx	251,837	4.89	244,364	4.75	2.78
Microsoft-HTTPAPI	100,425	1.95	98,192	1.91	2.00
Apache-Coyote	53,993	1.05	53,820	1.05	0.06
IdeaWebServer	46,939	0.91	46,363	0.90	0.97
Rapidsite	28,489	0.55	29,050	0.57	-2.19
LiteSpeed	26,251	0.51	25,361	0.49	3.23
lighttpd	21,528	0.42	21,669	0.42	-0.91
A	13,352	0.26	13,499	0.26	-1.35
Lotus-Domino	10,280	0.20	10,400	0.20	-1.42
BigIP	9,239	0.18	9,075	0.18	1.54
squid	7,111	0.14	7,011	0.14	1.16
AkamaiGHost	6,822	0.13	6,539	0.13	4.05
IBM_HTTP_Server	6,647	0.13	6,727	0.13	-1.45
Zope	3,436	0.07	3,470	0.07	-1.24
HTTPD	3,356	0.07	3,263	0.06	2.58
cloudflare-nginx	3,331	0.06	3,334	0.06	-0.36
Oracle-Application-Server-10g	3,317	0.06	3,381	0.07	-2.15
Resin	3,002	0.06	3,053	0.06	-1.93
EZproxy	2,061	0.04	2,051	0.04	0.22
Cougar	2,005	0.04	2,061	0.04	-2.98
Sun-ONE-Web-Server	1,891	0.04	1,938	0.04	-2.68
Zeus	1,870	0.04	1,880	0.04	-0.80
-	1,846	0.04	1,800	0.04	2.28
WDaemon	1,719	0.03	1,749	0.03	-1.98
Web	1,610	0.03	1,614	0.03	-0.51
Varnish	1,603	0.03	1,554	0.03	2.88
IceWarp	1,549	0.03	1,563	0.03	-1.16
Netscape-Enterprise	1,442	0.03	1,502	0.03	-4.25
xServers	1,326	0.03	1,276	0.02	3.64
III	1,194	0.02	1,201	0.02	-0.85
GWS	1,172	0.02	1,205	0.02	-3.00
kangle	1,134	0.02	924	0.02	22.40
Cherokee	1,099	0.02	1,096	0.02	0.01
thttpd	1,054	0.02	1,080	0.02	-2.67
Tengine	1,004	0.02	927	0.02	8.02
Boa	937	0.02	955	0.02	-2.15
Oracle	933	0.02	933	0.02	-0.27
cpsrvd	915	0.02	910	0.02	0.28
Nginx	898	0.02	898	0.02	-0.27
Sun-Java-System-Web-Server	897	0.02	904	0.02	-1.04
Apache-AdvancedExtranetServer	894	0.02	923	0.02	-3.40
httpd	892	0.02	911	0.02	-2.35
sffe	875	0.02	812	0.02	7.47
Rumpus	865	0.02	866	0.02	-0.38
MochiWeb	837	0.02	818	0.02	2.05
CommuniGatePro	819	0.02	823	0.02	-0.75
CloudFront	812	0.02	1,461	0.03	-44.57
Sun	750	0.01	771	0.02	-2.98
Jetty	735	0.01	757	0.01	-3.16
Bomgar	724	0.01	719	0.01	0.43
GlassFish	721	0.01	704	0.01	2.14
WebServer	656	0.01	651	0.01	0.50
WWW	639	0.01	661	0.01	-3.58
AnWeb	579	0.01	596	0.01	-3.11
Oracle-Application-Server-11g	577	0.01	550	0.01	4.63
FC	573	0.01	502	0.01	13.84
NOYB	549	0.01	550	0.01	-0.45
WebServerX	547	0.01	557	0.01	-2.06
Server	535	0.01	490	0.01	8.89
Kucci	529	0.01	351	0.01	50.31
redir-httpd	514	0.01	512	0.01	0.12
smartcds	499	0.01	457	0.01	8.90
WebtoB	496	0.01	502	0.01	-1.46
ListManagerWeb	460	0.01	468	0.01	-1.97
Ipswitch-IMail	456	0.01	466	0.01	-2.41
IBM_HTTP_SERVER	452	0.01	454	0.01	-0.70
Abyss	420	0.01	422	0.01	-0.74
DinaHTTPd	416	0.01	426	0.01	-2.61
Oracle-iPlanet-Web-Server	402	0.01	389	0.01	3.07
EdgePrism	394	0.01	368	0.01	6.78
FileMakerPro	385	0.01	412	0.01	-6.80
4D_WebStar_D	384	0.01	410	0.01	-6.59
Demandware	381	0.01	381	0.01	-0.27
Unknown	377	0.01	381	0.01	-1.31
AOLserver	377	0.01	383	0.01	-1.83
ApacheBooster	376	0.01	313	0.01	19.81
FlashCom	370	0.01	342	0.01	7.90
WebSphere	369	0.01	373	0.01	-1.33
HTTP	364	0.01	360	0.01	0.84
TWS	362	0.01	359	0.01	0.57
WebSTAR	353	0.01	358	0.01	-1.66
SAP	348	0.01	344	0.01	0.89
WebLogic	326	0.01	341	0.01	-4.65
PWS	323	0.01	277	0.01	16.30
Secured	305	0.01	321	0.01	-5.24
Indy	303	0.01	307	0.01	-1.56
WS	296	0.01	291	0.01	1.45
OpenCms	295	0.01	298	0.01	-1.27
hosting	293	0.01	0	0.00	N/A
SonicWALL	278	0.01	268	0.01	3.46
*****************	277	0.01	0	0.00	N/A
Google	276	0.01	0	0.00	N/A
AmazonS3	273	0.01	274	0.01	-0.63
eYouWS	271	0.01	284	0.01	-4.83
WP	271	0.01	272	0.01	-0.63
Roxen	268	0.01	267	0.01	0.11
JRun	266	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.