You are viewing an outdated report.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) 47,932,867 hostnames, but only 4,200,803 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	September 2010 Count	September 2010 %	August 2010 Count	August 2010 %	Growth %
Apache	2,468,298	58.76	2,449,144	58.76	-0.01
Microsoft-IIS	996,531	23.72	992,812	23.82	-0.41
null	318,863	7.59	315,974	7.58	0.12
nginx	80,165	1.91	76,248	1.83	4.31
Rapidsite	51,251	1.22	51,711	1.24	-1.67
Apache-Coyote	39,391	0.94	38,749	0.93	0.86
IdeaWebServer	31,887	0.76	31,306	0.75	1.06
Microsoft-HTTPAPI	28,886	0.69	27,053	0.65	5.94
lighttpd	20,698	0.49	20,261	0.49	1.36
A	17,426	0.41	17,463	0.42	-0.99
Lotus-Domino	11,853	0.28	11,902	0.29	-1.19
LiteSpeed	9,555	0.23	9,226	0.22	2.75
IBM_HTTP_Server	6,532	0.16	6,538	0.16	-0.87
BigIP	4,900	0.12	4,738	0.11	2.61
squid	4,455	0.11	4,411	0.11	0.21
Zope	4,215	0.10	4,239	0.10	-1.35
Oracle-Application-Server-10g	4,100	0.10	4,074	0.10	-0.15
Resin	3,401	0.08	3,346	0.08	0.85
Netscape-Enterprise	3,055	0.07	3,182	0.08	-4.74
Sun-ONE-Web-Server	2,990	0.07	3,059	0.07	-3.02
Zeus	2,930	0.07	2,929	0.07	-0.75
AkamaiGHost	2,665	0.06	2,979	0.07	-11.24
Cougar	2,336	0.06	2,356	0.06	-1.63
GWS	1,696	0.04	1,712	0.04	-1.71
WDaemon	1,670	0.04	1,663	0.04	-0.37
WebServerX	1,661	0.04	1,633	0.04	0.92
Apache-AdvancedExtranetServer	1,639	0.04	1,674	0.04	-2.86
IceWarp	1,614	0.04	1,592	0.04	0.59
EZproxy	1,525	0.04	1,502	0.04	0.74
PowerSchool	1,328	0.03	1,291	0.03	2.06
apache	1,311	0.03	1,263	0.03	2.99
Sun-Java-System-Web-Server	1,294	0.03	1,262	0.03	1.73
HTTPD	1,282	0.03	1,120	0.03	13.57
Jetty	1,269	0.03	1,286	0.03	-2.10
NOYB	1,164	0.03	1,300	0.03	-11.16
Web	1,157	0.03	1,154	0.03	-0.53
III	1,148	0.03	1,146	0.03	-0.61
thttpd	1,134	0.03	1,147	0.03	-1.91
Oracle	1,118	0.03	1,127	0.03	-1.58
Boa	1,093	0.03	1,119	0.03	-3.09
httpd	938	0.02	863	0.02	7.84
IBM_HTTP_SERVER	933	0.02	948	0.02	-2.35
CommuniGatePro	924	0.02	923	0.02	-0.68
Ipswitch-IMail	866	0.02	874	0.02	-1.69
AnWeb	851	0.02	864	0.02	-2.28
cpsrvd	850	0.02	836	0.02	0.88
WWW	802	0.02	889	0.02	-10.49
Sun	792	0.02	784	0.02	0.23
ListManagerWeb	729	0.02	719	0.02	0.60
WebSTAR	710	0.02	740	0.02	-4.81
WebtoB	657	0.02	647	0.02	0.75
4D_WebStar_D	653	0.02	627	0.02	3.33
FileMakerPro	635	0.02	649	0.02	-2.92
Cherokee	586	0.01	547	0.01	6.29
sffe	578	0.01	623	0.01	-7.95
Rumpus	569	0.01	562	0.01	0.45
WebLogic	567	0.01	562	0.01	0.10
redir-httpd	515	0.01	513	0.01	-0.40
BIG-IP	515	0.01	518	0.01	-1.36
AOLserver	506	0.01	506	0.01	-0.78
WebSite	489	0.01	512	0.01	-5.24
DeleGate	487	0.01	483	0.01	0.04
Secured	469	0.01	479	0.01	-2.85
WebSitePro	455	0.01	465	0.01	-2.92
JRun	431	0.01	417	0.01	2.55
EdgePrism	413	0.01	393	0.01	4.27
Abyss	412	0.01	414	0.01	-1.26
4D_WebSTAR_S	402	0.01	400	0.01	-0.29
Bomgar	401	0.01	390	0.01	2.01
WebServer	392	0.01	398	0.01	-2.28
Power	392	0.01	404	0.01	-3.73
WebSphere	372	0.01	372	0.01	-0.78
Varnish	363	0.01	343	0.01	5.00
Server	352	0.01	349	0.01	0.07
""	343	0.01	336	0.01	1.28
Indy	337	0.01	325	0.01	2.88
xServers	336	0.01	264	0.01	26.28
Roxen	334	0.01	341	0.01	-2.82
SAMBAR	331	0.01	332	0.01	-1.08
Stronghold	302	0.01	301	0.01	-0.45
SW	293	0.01	301	0.01	-3.42
IIS	282	0.01	272	0.01	2.86
SAP	274	0.01	269	0.01	1.06
NetCache	271	0.01	296	0.01	-9.16
Orion	263	0.01	259	0.01	0.75
FC	260	0.01	261	0.01	-1.16
ENIAC	260	0.01	282	0.01	-8.52
CloudFront	252	0.01	247	0.01	1.22
Ultraseek	245	0.01	252	0.01	-3.54
Hanbiro	224	0.01	222	0.01	0.11
TimmiT	223	0.01	229	0.01	-3.38
Oracle9iAS	214	0.01	221	0.01	-3.93
httpd+ssl	211	0.01	215	0.01	-2.63
Kerio	210	0.00	229	0.01	-9.02
OSU	203	0.00	211	0.01	-4.55
OpenCms	202	0.00	0	0.00	N/A
BarracudaHTTP	202	0.00	201	0.00	-0.29
NetBox	200	0.00	0	0.00	N/A
VB	195	0.00	199	0.00	-2.78
Xitami	193	0.00	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.