You are viewing an outdated report.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) 57,280,901 hostnames, but only 4,867,208 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	November 2018 Count	November 2018 %	October 2018 Count	October 2018 %	Growth %
Apache	2,233,671	45.89	2,247,893	45.96	-0.16
nginx	979,326	20.12	962,005	19.67	2.29
Microsoft-IIS	649,810	13.35	675,308	13.81	-3.31
null	313,934	6.45	318,010	6.50	-0.81
Microsoft-HTTPAPI	232,339	4.77	228,322	4.67	2.25
cloudflare	106,979	2.20	0	0.00	N/A
IdeaWebServer	46,494	0.96	46,809	0.96	-0.20
LiteSpeed	42,000	0.86	40,997	0.84	2.94
Apache-Coyote	30,155	0.62	30,851	0.63	-1.79
BigIP	28,779	0.59	28,250	0.58	2.36
openresty	22,545	0.46	26,098	0.53	-13.20
AkamaiGHost	14,416	0.30	14,223	0.29	1.84
Tengine	13,202	0.27	12,394	0.25	7.03
Flywheel	12,877	0.26	12,669	0.26	2.13
AmazonS3	7,559	0.16	6,868	0.14	10.59
lighttpd	6,020	0.12	6,155	0.13	-1.72
wts	5,582	0.11	5,694	0.12	-1.50
WWW	4,476	0.09	4,437	0.09	1.36
Varnish	4,347	0.09	4,260	0.09	2.53
Lotus-Domino	3,825	0.08	3,871	0.08	-0.71
CloudFront	3,613	0.07	4,916	0.10	-26.15
Safedog	3,453	0.07	3,436	0.07	0.98
nginx-reuseport	3,169	0.07	3,128	0.06	1.80
awselb	2,950	0.06	2,111	0.04	40.42
EZproxy	2,600	0.05	2,617	0.05	-0.17
kangle	2,586	0.05	2,028	0.04	28.13
Cowboy	2,018	0.04	2,132	0.04	-4.89
squid	1,989	0.04	2,052	0.04	-2.60
nginx-rc	1,757	0.04	1,593	0.03	10.83
IIS	1,695	0.03	1,749	0.04	-2.62
ClausWeb-nginx	1,607	0.03	1,397	0.03	15.59
Caddy	1,516	0.03	1,525	0.03	-0.11
Firewall	1,329	0.03	1,289	0.03	3.60
ws-httpd	1,119	0.02	1,119	0.02	0.48
Resin	1,109	0.02	1,128	0.02	-1.21
linuxOS	1,002	0.02	986	0.02	2.11
-	998	0.02	931	0.02	7.71
IceWarp	969	0.02	981	0.02	-0.75
YxlinkWAF	968	0.02	1,087	0.02	-10.52
Zope	921	0.02	952	0.02	-2.79
WDaemon	915	0.02	924	0.02	-0.50
III	873	0.02	889	0.02	-1.33
IBM_HTTP_Server	862	0.02	873	0.02	-0.79
Linux	849	0.02	875	0.02	-2.51
GlassFish	835	0.02	847	0.02	-0.94
scl	787	0.02	786	0.02	0.61
Kestrel	784	0.02	711	0.01	10.80
Destiny	779	0.02	769	0.02	1.79
CentOS	752	0.02	696	0.01	8.57
ScreenConnect	746	0.02	761	0.02	-1.50
CHO	707	0.01	709	0.01	0.20
sffe	680	0.01	726	0.01	-5.89
Icecast	679	0.01	671	0.01	1.68
VWebServer	673	0.01	655	0.01	3.24
Oracle-Application-Server-10g	656	0.01	687	0.01	-4.05
PWS	648	0.01	722	0.01	-9.82
Server	629	0.01	623	0.01	1.45
Nginx	617	0.01	602	0.01	2.98
Web	564	0.01	553	0.01	2.48
ECAcc	554	0.01	545	0.01	2.14
AliyunOSS	545	0.01	515	0.01	6.33
Rumpus	542	0.01	566	0.01	-3.78
Protected	519	0.01	561	0.01	-7.04
yunjiasu-nginx	511	0.01	498	0.01	3.10
WebServer	509	0.01	541	0.01	-5.46
redir-httpd	491	0.01	491	0.01	0.48
ATS	485	0.01	506	0.01	-3.69
EdgePrism	461	0.01	438	0.01	5.76
Oracle-Application-Server-11g	457	0.01	475	0.01	-3.33
Bomgar	448	0.01	478	0.01	-5.83
CommuniGatePro	401	0.01	403	0.01	-0.02
QRATOR	396	0.01	406	0.01	-1.99
*****************	393	0.01	414	0.01	-4.62
OpenBSD	380	0.01	380	0.01	0.48
WildFly	377	0.01	372	0.01	1.83
Cougar	359	0.01	374	0.01	-3.55
httpd	354	0.01	367	0.01	-3.08
WAF	342	0.01	360	0.01	-4.54
WowzaStreamingEngine	339	0.01	347	0.01	-1.84
nginx-upupw	338	0.01	513	0.01	-33.80
cc-web	332	0.01	325	0.01	2.64
ECS	327	0.01	324	0.01	1.41
XtendWeb-nginx	317	0.01	271	0.01	17.54
MageStack-MagentoOS	316	0.01	311	0.01	2.10
WCSFlare	301	0.01	0	0.00	N/A
TWebAP	299	0.01	297	0.01	1.16
aruba-proxy	289	0.01	273	0.01	6.37
4D	287	0.01	280	0.01	2.99
ghs	284	0.01	289	0.01	-1.26
LRBD-90b4cdf	282	0.01	322	0.01	-12.00
360wzws	281	0.01	270	0.01	4.57
1	280	0.01	286	0.01	-1.63
Werkzeug	279	0.01	303	0.01	-7.48
Footprint	274	0.01	259	0.01	6.30
Sun	267	0.01	273	0.01	-1.73
SonicWALL	265	0.01	264	0.01	0.86
Netscape-Enterprise	265	0.01	258	0.01	3.21
gunicorn	264	0.01	271	0.01	-2.11
awex	254	0.01	252	0.01	1.28
Abyss	254	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.