You are viewing an outdated report.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) 74,035,060 hostnames, but only 5,407,722 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	August 2017 Count	August 2017 %	July 2017 Count	July 2017 %	Growth %
Apache	2,536,166	46.90	2,539,022	47.07	-0.35
nginx	913,309	16.89	907,564	16.82	0.39
Microsoft-IIS	857,321	15.85	868,455	16.10	-1.52
null	398,126	7.36	380,540	7.05	4.37
Microsoft-HTTPAPI	224,290	4.15	219,921	4.08	1.74
cloudflare-nginx	85,719	1.59	84,461	1.57	1.24
IdeaWebServer	50,954	0.94	50,786	0.94	0.09
Apache-Coyote	50,182	0.93	50,709	0.94	-1.28
LiteSpeed	39,490	0.73	39,216	0.73	0.45
BigIP	23,599	0.44	23,329	0.43	0.91
openresty	16,175	0.30	16,568	0.31	-2.61
AkamaiGHost	13,135	0.24	13,989	0.26	-6.33
Flywheel	9,286	0.17	8,952	0.17	3.48
Tengine	9,257	0.17	9,537	0.18	-3.17
lighttpd	8,313	0.15	8,417	0.16	-1.47
CloudFront	8,045	0.15	7,564	0.14	6.10
WWW	6,638	0.12	6,866	0.13	-3.55
IIS	5,741	0.11	6,347	0.12	-9.77
wts	5,669	0.10	5,974	0.11	-5.34
squid	5,290	0.10	5,336	0.10	-1.10
Lotus-Domino	5,142	0.10	5,181	0.10	-0.99
Safedog	5,049	0.09	4,627	0.09	8.86
AmazonS3	4,801	0.09	4,353	0.08	10.02
Varnish	4,417	0.08	4,440	0.08	-0.76
kangle	3,918	0.07	3,910	0.07	-0.04
Cowboy	3,489	0.06	3,583	0.07	-2.86
sffe	3,365	0.06	3,384	0.06	-0.80
A	3,087	0.06	4,674	0.09	-34.11
nginx-upupw	2,897	0.05	2,091	0.04	38.21
EZproxy	2,720	0.05	2,699	0.05	0.53
nginx-reuseport	2,404	0.04	2,350	0.04	2.05
XtendWeb-nginx	1,824	0.03	1,206	0.02	50.88
Resin	1,821	0.03	1,815	0.03	0.09
Pantheon	1,679	0.03	1,776	0.03	-5.69
YxlinkWAF	1,673	0.03	1,655	0.03	0.84
GSYQ	1,603	0.03	1,354	0.03	18.10
IBM_HTTP_Server	1,537	0.03	1,587	0.03	-3.39
Destiny	1,432	0.03	1,529	0.03	-6.57
Zope	1,350	0.02	1,632	0.03	-17.48
WDaemon	1,206	0.02	1,231	0.02	-2.27
-	1,191	0.02	1,203	0.02	-1.24
GlassFish	1,182	0.02	1,196	0.02	-1.41
IceWarp	1,149	0.02	1,148	0.02	-0.16
Oracle-Application-Server-10g	1,045	0.02	1,073	0.02	-2.85
xServers	1,007	0.02	988	0.02	1.68
III	1,002	0.02	1,004	0.02	-0.44
Caddy	984	0.02	933	0.02	5.21
ScreenConnect	933	0.02	933	0.02	-0.24
ws-httpd	902	0.02	886	0.02	1.56
Rumpus	818	0.02	829	0.02	-1.57
CHO	776	0.01	777	0.01	-0.37
Icecast	758	0.01	763	0.01	-0.90
Bomgar	752	0.01	767	0.01	-2.19
Web	711	0.01	766	0.01	-7.40
GSHD	699	0.01	378	0.01	84.47
Oracle-Application-Server-11g	698	0.01	696	0.01	0.04
PWS	677	0.01	678	0.01	-0.39
Nginx	657	0.01	645	0.01	1.61
EdgePrism	657	0.01	645	0.01	1.61
Cougar	638	0.01	653	0.01	-2.53
Server	623	0.01	634	0.01	-1.97
Protected	598	0.01	592	0.01	0.77
ATS	586	0.01	604	0.01	-3.22
WAF	582	0.01	612	0.01	-5.13
*****************	581	0.01	579	0.01	0.10
WebServer	548	0.01	540	0.01	1.24
thttpd	527	0.01	541	0.01	-2.82
redir-httpd	498	0.01	500	0.01	-0.64
TWebAP	495	0.01	510	0.01	-3.18
WowzaStreamingEngine	492	0.01	485	0.01	1.20
VWebServer	491	0.01	488	0.01	0.37
CommuniGatePro	491	0.01	489	0.01	0.17
httpd	487	0.01	486	0.01	-0.04
Oracle	470	0.01	480	0.01	-2.32
Boa	464	0.01	474	0.01	-2.35
yunjiasu-nginx	459	0.01	463	0.01	-1.10
Pagely	437	0.01	435	0.01	0.22
Sun	435	0.01	425	0.01	2.11
Firewall	435	0.01	463	0.01	-6.28
AliyunOSS	424	0.01	405	0.01	4.44
SonicWALL	408	0.01	409	0.01	-0.49
cc-web	399	0.01	395	0.01	0.77
QRATOR	396	0.01	398	0.01	-0.74
WildFly	394	0.01	391	0.01	0.52
1	389	0.01	387	0.01	0.27
Sun-ONE-Web-Server	372	0.01	380	0.01	-2.34
Zeus	361	0.01	368	0.01	-2.14
LRBD-18ca645	361	0.01	0	0.00	N/A
ghs	360	0.01	336	0.01	6.88
Oracle-iPlanet-Web-Server	359	0.01	363	0.01	-1.34
Werkzeug	351	0.01	349	0.01	0.33
Google	347	0.01	350	0.01	-1.10
gunicorn	335	0.01	331	0.01	0.96
ECAcc	328	0.01	314	0.01	4.21
Abyss	326	0.01	329	0.01	-1.15
NginxPlus	323	0.01	312	0.01	3.27
360wzws	321	0.01	404	0.01	-20.74
ECS	316	0.01	313	0.01	0.71
OpenBSD	315	0.01	0	0.00	N/A
Cherokee	314	0.01	317	0.01	-1.19

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.