You are viewing an outdated report. The latest version of this report was published on October 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) 75,603,653 hostnames, but only 5,452,566 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 2017 Count	September 2017 %	August 2017 Count	August 2017 %	Growth %
Apache	2,552,685	46.82	2,536,166	46.90	-0.18
nginx	932,046	17.09	913,309	16.89	1.21
Microsoft-IIS	871,112	15.98	857,321	15.85	0.77
null	390,681	7.17	398,126	7.36	-2.68
Microsoft-HTTPAPI	228,670	4.19	224,290	4.15	1.11
cloudflare-nginx	87,563	1.61	85,719	1.59	1.31
IdeaWebServer	51,029	0.94	50,954	0.94	-0.68
Apache-Coyote	47,762	0.88	50,182	0.93	-5.61
LiteSpeed	39,775	0.73	39,490	0.73	-0.11
BigIP	24,124	0.44	23,599	0.44	1.38
openresty	16,607	0.30	16,175	0.30	1.83
AkamaiGHost	14,182	0.26	13,135	0.24	7.08
CloudFront	9,907	0.18	8,045	0.15	22.13
Tengine	9,873	0.18	9,257	0.17	5.78
Flywheel	9,615	0.18	9,286	0.17	2.69
lighttpd	8,224	0.15	8,313	0.15	-1.88
WWW	6,445	0.12	6,638	0.12	-3.71
IIS	5,725	0.10	5,741	0.11	-1.10
wts	5,490	0.10	5,669	0.10	-3.95
squid	5,195	0.10	5,290	0.10	-2.60
Lotus-Domino	5,043	0.09	5,142	0.10	-2.73
AmazonS3	5,036	0.09	4,801	0.09	4.03
Varnish	4,418	0.08	4,417	0.08	-0.80
Safedog	4,304	0.08	5,049	0.09	-15.46
kangle	3,762	0.07	3,918	0.07	-4.77
Cowboy	3,398	0.06	3,489	0.06	-3.41
sffe	3,325	0.06	3,365	0.06	-2.00
EZproxy	2,727	0.05	2,720	0.05	-0.57
nginx-reuseport	2,490	0.05	2,404	0.04	2.73
nginx-upupw	2,349	0.04	2,897	0.05	-19.58
XtendWeb-nginx	1,999	0.04	1,824	0.03	8.69
Resin	1,712	0.03	1,821	0.03	-6.76
Pantheon	1,553	0.03	1,679	0.03	-8.27
IBM_HTTP_Server	1,424	0.03	1,537	0.03	-8.11
Destiny	1,414	0.03	1,432	0.03	-2.07
Zope	1,313	0.02	1,350	0.02	-3.54
A	1,302	0.02	3,087	0.06	-58.17
GlassFish	1,196	0.02	1,182	0.02	0.35
WDaemon	1,194	0.02	1,206	0.02	-1.81
-	1,186	0.02	1,191	0.02	-1.24
IceWarp	1,145	0.02	1,149	0.02	-1.17
Oracle-Application-Server-10g	1,032	0.02	1,045	0.02	-2.06
Caddy	1,032	0.02	984	0.02	4.02
xServers	1,025	0.02	1,007	0.02	0.95
III	998	0.02	1,002	0.02	-1.22
ScreenConnect	946	0.02	933	0.02	0.56
ws-httpd	919	0.02	902	0.02	1.05
YxlinkWAF	884	0.02	1,673	0.03	-47.60
GSYQ	860	0.02	1,603	0.03	-46.79
Rumpus	815	0.01	818	0.02	-1.19
Icecast	779	0.01	758	0.01	1.93
CHO	772	0.01	776	0.01	-1.33
Bomgar	751	0.01	752	0.01	-0.95
PWS	719	0.01	677	0.01	5.33
Web	703	0.01	711	0.01	-1.94
Oracle-Application-Server-11g	677	0.01	698	0.01	-3.81
Nginx	666	0.01	657	0.01	0.54
ATS	655	0.01	586	0.01	10.86
Server	637	0.01	623	0.01	1.41
Cougar	625	0.01	638	0.01	-2.84
Protected	567	0.01	598	0.01	-5.96
WAF	544	0.01	582	0.01	-7.30
WebServer	542	0.01	548	0.01	-1.91
thttpd	526	0.01	527	0.01	-1.01
EdgePrism	516	0.01	657	0.01	-22.11
redir-httpd	499	0.01	498	0.01	-0.62
WowzaStreamingEngine	491	0.01	492	0.01	-1.02
TWebAP	490	0.01	495	0.01	-1.82
awselb	487	0.01	0	0.00	N/A
httpd	483	0.01	487	0.01	-1.64
Boa	475	0.01	464	0.01	1.53
CommuniGatePro	473	0.01	491	0.01	-4.46
linuxOS	467	0.01	0	0.00	N/A
Oracle	458	0.01	470	0.01	-3.35
yunjiasu-nginx	457	0.01	459	0.01	-1.25
AliyunOSS	449	0.01	424	0.01	5.03
Pagely	444	0.01	437	0.01	0.77
*****************	442	0.01	581	0.01	-24.55
VWebServer	435	0.01	491	0.01	-12.13
Firewall	429	0.01	435	0.01	-2.19
WildFly	416	0.01	394	0.01	4.72
SonicWALL	411	0.01	408	0.01	-0.09
GSHD	406	0.01	699	0.01	-42.39
cc-web	404	0.01	399	0.01	0.42
QRATOR	398	0.01	396	0.01	-0.32
1	393	0.01	389	0.01	0.20
Sun	392	0.01	435	0.01	-10.63
Werkzeug	365	0.01	351	0.01	3.13
LRBD-3fdeab2	365	0.01	0	0.00	N/A
Oracle-iPlanet-Web-Server	350	0.01	359	0.01	-3.31
Google	349	0.01	347	0.01	-0.25
360wzws	348	0.01	321	0.01	7.52
Sun-ONE-Web-Server	346	0.01	372	0.01	-7.75
ECAcc	345	0.01	328	0.01	4.32
ghs	342	0.01	360	0.01	-5.78
NginxPlus	336	0.01	323	0.01	3.17
CentOS	331	0.01	0	0.00	N/A
gunicorn	327	0.01	335	0.01	-3.19
Abyss	324	0.01	326	0.01	-1.43
OpenBSD	323	0.01	315	0.01	1.70

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.