You are viewing an outdated report. The latest version of this report was published on April 1st, 2025

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) 60,564,539 hostnames, but only 4,919,678 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	June 2018 Count	June 2018 %	May 2018 Count	May 2018 %	Growth %
Apache	2,300,194	46.75	2,327,489	47.18	-0.90
nginx	933,894	18.98	926,379	18.78	1.09
Microsoft-IIS	687,090	13.97	693,360	14.05	-0.63
null	329,743	6.70	329,618	6.68	0.31
Microsoft-HTTPAPI	224,413	4.56	218,470	4.43	3.00
cloudflare-nginx	98,107	1.99	92,651	1.88	6.18
IdeaWebServer	47,821	0.97	48,193	0.98	-0.50
LiteSpeed	41,679	0.85	41,418	0.84	0.91
Apache-Coyote	32,741	0.67	33,078	0.67	-0.75
BigIP	26,874	0.55	26,356	0.53	2.25
openresty	19,890	0.40	18,235	0.37	9.38
AkamaiGHost	13,162	0.27	14,467	0.29	-8.77
Flywheel	11,873	0.24	11,557	0.23	3.02
Tengine	11,054	0.22	9,639	0.20	15.00
lighttpd	6,470	0.13	6,691	0.14	-3.04
AmazonS3	6,227	0.13	5,724	0.12	9.09
CloudFront	6,219	0.13	6,445	0.13	-3.24
wts	5,620	0.11	5,471	0.11	3.01
WWW	4,465	0.09	4,721	0.10	-5.16
Varnish	4,236	0.09	4,284	0.09	-0.85
Lotus-Domino	4,061	0.08	4,168	0.08	-2.30
Safedog	3,314	0.07	3,855	0.08	-13.80
nginx-reuseport	2,950	0.06	2,887	0.06	2.46
EZproxy	2,664	0.05	2,695	0.05	-0.88
Cowboy	2,334	0.05	2,423	0.05	-3.41
squid	2,217	0.05	2,247	0.05	-1.06
linuxOS	2,211	0.04	1,854	0.04	19.58
kangle	2,188	0.04	2,079	0.04	5.53
IIS	1,848	0.04	2,329	0.05	-20.43
Caddy	1,393	0.03	1,324	0.03	5.50
Resin	1,172	0.02	1,170	0.02	0.45
nginx-upupw	1,068	0.02	1,058	0.02	1.22
ws-httpd	1,046	0.02	969	0.02	8.24
Zope	1,013	0.02	1,049	0.02	-3.17
IceWarp	1,012	0.02	1,028	0.02	-1.29
YxlinkWAF	1,008	0.02	1,106	0.02	-8.61
IBM_HTTP_Server	1,001	0.02	1,033	0.02	-2.83
ClausWeb-nginx	978	0.02	0	0.00	N/A
awselb	973	0.02	724	0.01	34.76
WDaemon	965	0.02	980	0.02	-1.26
nginx-rc	940	0.02	733	0.01	28.59
III	917	0.02	927	0.02	-0.81
-	914	0.02	947	0.02	-3.22
GlassFish	877	0.02	913	0.02	-3.68
sffe	795	0.02	826	0.02	-3.49
XtendWeb-nginx	795	0.02	1,543	0.03	-48.34
ScreenConnect	783	0.02	811	0.02	-3.19
PWS	757	0.02	751	0.02	1.08
Oracle-Application-Server-10g	756	0.02	784	0.02	-3.31
xServers	731	0.01	736	0.01	-0.41
CHO	729	0.01	735	0.01	-0.54
Web	676	0.01	672	0.01	0.87
Destiny	672	0.01	704	0.01	-4.28
Icecast	653	0.01	663	0.01	-1.24
Bomgar	620	0.01	689	0.01	-9.77
Server	608	0.01	620	0.01	-1.67
VWebServer	603	0.01	580	0.01	4.25
Rumpus	594	0.01	600	0.01	-0.73
Protected	589	0.01	589	0.01	0.28
Nginx	571	0.01	596	0.01	-3.93
CentOS	567	0.01	518	0.01	9.76
WebServer	538	0.01	524	0.01	2.95
ECAcc	518	0.01	499	0.01	4.09
Oracle-Application-Server-11g	505	0.01	527	0.01	-3.91
yunjiasu-nginx	501	0.01	480	0.01	4.66
redir-httpd	494	0.01	494	0.01	0.28
ATS	486	0.01	533	0.01	-8.57
AliyunOSS	467	0.01	413	0.01	13.39
Kestrel	464	0.01	429	0.01	8.46
*****************	439	0.01	410	0.01	7.37
EdgePrism	415	0.01	474	0.01	-12.21
CommuniGatePro	409	0.01	422	0.01	-2.81
Cougar	403	0.01	417	0.01	-3.09
WAF	395	0.01	391	0.01	1.30
QRATOR	394	0.01	399	0.01	-0.98
httpd	388	0.01	394	0.01	-1.25
WildFly	378	0.01	386	0.01	-1.80
OpenBSD	357	0.01	357	0.01	0.28
WowzaStreamingEngine	354	0.01	359	0.01	-1.12
Pagely	340	0.01	382	0.01	-10.75
ECS	332	0.01	331	0.01	0.58
TWebAP	324	0.01	304	0.01	6.87
LRBD-90b4cdf	319	0.01	0	0.00	N/A
GSHD	316	0.01	0	0.00	N/A
cc-web	315	0.01	321	0.01	-1.60
Footprint	310	0.01	322	0.01	-3.46
MageStack-MagentoOS	300	0.01	299	0.01	0.61
1	300	0.01	313	0.01	-3.89
Werkzeug	299	0.01	312	0.01	-3.90
Sun	297	0.01	302	0.01	-1.38
ghs	278	0.01	296	0.01	-5.82
360wzws	275	0.01	277	0.01	-0.45
Google	273	0.01	290	0.01	-5.60
******	273	0.01	0	0.00	N/A
gunicorn	270	0.01	288	0.01	-5.99
Sun-ONE-Web-Server	270	0.01	280	0.01	-3.31
4D	270	0.01	0	0.00	N/A
Netscape-Enterprise	269	0.01	282	0.01	-4.35
Oracle	267	0.01	278	0.01	-3.69
Firewall	267	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.