You are viewing an outdated report.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) 74,352,264 hostnames, but only 5,749,024 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	July 2015 Count	July 2015 %	June 2015 Count	June 2015 %	Growth %
Apache	3,020,438	52.54	3,029,892	52.50	0.08
Microsoft-IIS	984,559	17.13	1,003,516	17.39	-1.51
nginx	615,700	10.71	604,294	10.47	2.28
null	472,303	8.22	481,548	8.34	-1.54
Microsoft-HTTPAPI	191,347	3.33	188,287	3.26	2.02
Apache-Coyote	61,984	1.08	62,402	1.08	-0.28
cloudflare-nginx	60,190	1.05	59,008	1.02	2.40
IdeaWebServer	56,500	0.98	56,695	0.98	0.04
LiteSpeed	36,284	0.63	34,398	0.60	5.89
IIS	18,710	0.33	20,776	0.36	-9.59
BigIP	17,235	0.30	16,908	0.29	2.33
lighttpd	16,669	0.29	17,668	0.31	-5.29
squid	10,762	0.19	10,672	0.18	1.24
AkamaiGHost	10,410	0.18	8,444	0.15	23.76
A	9,860	0.17	9,962	0.17	-0.64
Rapidsite	7,636	0.13	7,777	0.13	-1.43
Lotus-Domino	7,332	0.13	7,495	0.13	-1.79
Tengine	5,327	0.09	5,633	0.10	-5.06
Cowboy	5,074	0.09	5,003	0.09	1.81
Safedog	4,919	0.09	5,025	0.09	-1.73
WWW	4,824	0.08	4,774	0.08	1.44
sffe	4,525	0.08	4,949	0.09	-8.21
IBM_HTTP_Server	3,566	0.06	3,648	0.06	-1.87
Varnish	3,517	0.06	3,570	0.06	-1.10
kangle	3,269	0.06	3,218	0.06	1.98
GSHD	3,249	0.06	2,959	0.05	10.23
Flywheel	2,918	0.05	2,715	0.05	7.90
AmazonS3	2,762	0.05	2,748	0.05	0.90
Resin	2,630	0.05	2,664	0.05	-0.89
EZproxy	2,571	0.04	2,563	0.04	0.70
Zope	2,438	0.04	2,484	0.04	-1.47
-	2,136	0.04	2,195	0.04	-2.31
Oracle-Application-Server-10g	1,944	0.03	2,013	0.03	-3.05
openresty	1,935	0.03	1,880	0.03	3.33
WDaemon	1,621	0.03	1,614	0.03	0.82
CloudFront	1,516	0.03	1,507	0.03	0.99
Web	1,418	0.02	1,432	0.02	-0.59
xServers	1,312	0.02	1,302	0.02	1.16
IceWarp	1,290	0.02	1,309	0.02	-1.07
GlassFish	1,228	0.02	1,222	0.02	0.88
Cougar	1,179	0.02	1,229	0.02	-3.69
III	1,146	0.02	1,155	0.02	-0.39
Oracle-Application-Server-11g	988	0.02	994	0.02	-0.22
Rumpus	967	0.02	964	0.02	0.70
cpsrvd	920	0.02	939	0.02	-1.64
Sun-ONE-Web-Server	907	0.02	952	0.02	-4.36
YxlinkWAF	845	0.01	785	0.01	8.06
smartcds	826	0.01	778	0.01	6.58
Zeus	818	0.01	842	0.01	-2.47
Bomgar	815	0.01	811	0.01	0.88
Pantheon	806	0.01	757	0.01	6.89
thttpd	791	0.01	812	0.01	-2.21
EdgePrism	777	0.01	745	0.01	4.70
WebServer	737	0.01	737	0.01	0.39
Boa	732	0.01	731	0.01	0.53
httpd	679	0.01	696	0.01	-2.06
*****************	675	0.01	640	0.01	5.88
Oracle	653	0.01	673	0.01	-2.59
Demandware	652	0.01	650	0.01	0.70
ScreenConnect	647	0.01	627	0.01	3.59
CommuniGatePro	643	0.01	648	0.01	-0.39
Advanced	633	0.01	0	0.00	N/A
Sun	621	0.01	649	0.01	-3.94
PWS	597	0.01	608	0.01	-1.43
Cherokee	590	0.01	589	0.01	0.56
ATS	581	0.01	612	0.01	-4.70
Netscape-Enterprise	561	0.01	586	0.01	-3.89
redir-httpd	514	0.01	510	0.01	1.18
GWS	511	0.01	529	0.01	-3.03
kisa	504	0.01	498	0.01	1.60
Oracle-iPlanet-Web-Server	495	0.01	494	0.01	0.59
SonicWALL	486	0.01	468	0.01	4.25
Apache-AdvancedExtranetServer	458	0.01	473	0.01	-2.79
FlashCom	450	0.01	467	0.01	-3.26
Server	448	0.01	431	0.01	4.35
TWebAP	429	0.01	434	0.01	-0.77
Sun-Java-System-Web-Server	429	0.01	443	0.01	-2.78
Jetty	429	0.01	443	0.01	-2.78
WS	424	0.01	431	0.01	-1.24
Google	415	0.01	421	0.01	-1.04
ngx_openresty	412	0.01	418	0.01	-1.05
Unknown	392	0.01	363	0.01	8.41
gunicorn	380	0.01	367	0.01	3.95
Abyss	379	0.01	383	0.01	-0.66
GSYQ	356	0.01	331	0.01	7.97
Icecast	353	0.01	347	0.01	2.13
SAP	347	0.01	349	0.01	-0.19
WebServerX	334	0.01	335	0.01	0.09
ghs	326	0.01	322	0.01	1.64
OpenCms	326	0.01	324	0.01	1.01
QRATOR	325	0.01	321	0.01	1.64
FC	324	0.01	422	0.01	-22.92
WowzaStreamingEngine	320	0.01	297	0.01	8.16
NOYB	313	0.01	325	0.01	-3.32
cc-web	305	0.01	299	0.01	2.40
yunjiasu-nginx	301	0.01	352	0.01	-14.16
AnWeb	300	0.01	331	0.01	-9.01
unknown	294	0.01	290	0.01	1.77
WcsFlare	286	0.00	0	0.00	N/A
Sucuri	285	0.00	282	0.00	1.46

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.