You are viewing an outdated report. The latest version of this report was published on May 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) 56,556,353 hostnames, but only 3,796,619 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 2023 Count	November 2023 %	October 2023 Count	October 2023 %	Growth %
Apache	1,360,265	35.83	1,383,735	36.17	-0.93
nginx	1,202,194	31.66	1,197,849	31.31	1.14
null	381,387	10.05	385,124	10.07	-0.20
Microsoft-IIS	229,415	6.04	230,563	6.03	0.27
Microsoft-HTTPAPI	131,863	3.47	133,952	3.50	-0.80
cloudflare	102,675	2.70	103,008	2.69	0.45
LiteSpeed	86,435	2.28	86,198	2.25	1.05
awselb	37,657	0.99	36,056	0.94	5.25
IdeaWebServer	30,189	0.80	30,629	0.80	-0.67
BigIP	22,915	0.60	23,120	0.60	-0.12
AmazonS3	19,862	0.52	20,274	0.53	-1.27
Nginx	19,856	0.52	20,715	0.54	-3.40
openresty	18,535	0.49	18,800	0.49	-0.64
AkamaiGHost	17,410	0.46	16,096	0.42	9.00
CloudFront	17,149	0.45	15,838	0.41	9.12
Tengine	9,828	0.26	14,165	0.37	-30.08
Apache-Coyote	7,883	0.21	8,164	0.21	-2.69
nginx-rc	6,608	0.17	6,676	0.17	-0.25
Caddy	5,332	0.14	5,240	0.14	2.54
wts	4,651	0.12	4,723	0.12	-0.76
Microsoft-Azure-Application-Gateway	4,352	0.11	4,269	0.11	2.73
nginx-reuseport	3,530	0.09	3,581	0.09	-0.66
Varnish	3,231	0.09	5,798	0.15	-43.84
lighttpd	2,613	0.07	2,656	0.07	-0.86
Aws	2,457	0.06	0	0.00	N/A
ddos-guard	2,265	0.06	2,169	0.06	5.24
EZproxy	1,956	0.05	1,971	0.05	0.01
hcdn	1,763	0.05	1,598	0.04	11.18
F-WEB	1,535	0.04	1,561	0.04	-0.90
Lotus-Domino	1,497	0.04	1,522	0.04	-0.88
AliyunOSS	1,226	0.03	1,270	0.03	-2.72
Server	1,011	0.03	970	0.03	5.04
aruba-proxy	1,003	0.03	1,002	0.03	0.88
Icecast	969	0.03	968	0.03	0.88
o2switch-PowerBoost-v3	963	0.03	948	0.02	2.37
QRATOR	847	0.02	829	0.02	2.96
scl	786	0.02	988	0.03	-19.83
CloudWAF	733	0.02	728	0.02	1.47
squid	720	0.02	741	0.02	-2.08
IceWarp	616	0.02	620	0.02	0.13
rdwr	576	0.02	553	0.01	4.97
elb	521	0.01	531	0.01	-1.12
namecheap-nginx	514	0.01	510	0.01	1.57
Safedog	512	0.01	665	0.02	-22.41
WWW	491	0.01	489	0.01	1.19
OpenBSD	486	0.01	484	0.01	1.19
******	485	0.01	448	0.01	9.10
Kestrel	467	0.01	489	0.01	-3.76
redir-httpd	446	0.01	448	0.01	0.33
ECAcc	444	0.01	441	0.01	1.46
stgw	434	0.01	440	0.01	-0.60
kangle	432	0.01	450	0.01	-3.26
envoy	432	0.01	425	0.01	2.44
istio-envoy	423	0.01	421	0.01	1.25
sffe	409	0.01	437	0.01	-5.68
WVS	399	0.01	416	0.01	-3.34
CHO	395	0.01	400	0.01	-0.48
eClass	378	0.01	378	0.01	0.78
ScreenConnect	374	0.01	384	0.01	-1.85
Web	369	0.01	358	0.01	3.87
Windows-Azure-Blob	360	0.01	356	0.01	1.91
none	354	0.01	330	0.01	8.10
*********	348	0.01	354	0.01	-0.93
WDaemon	346	0.01	348	0.01	0.20
Destiny	335	0.01	336	0.01	0.48
Fly	330	0.01	336	0.01	-1.02
myracloud	323	0.01	325	0.01	0.16
IIS	316	0.01	349	0.01	-8.75
Google	314	0.01	346	0.01	-8.54
UploadServer	302	0.01	316	0.01	-3.69
ldweb	299	0.01	301	0.01	0.11
web	293	0.01	307	0.01	-3.82
ClausWeb-nginx	289	0.01	294	0.01	-0.94
GlassFish	287	0.01	286	0.01	1.13
Resin	282	0.01	283	0.01	0.42
cc-web	268	0.01	274	0.01	-1.43
ATS	263	0.01	274	0.01	-3.27
cdn	241	0.01	200	0.01	21.43
awex	239	0.01	238	0.01	1.20
PowerSchool	239	0.01	245	0.01	-1.69
Byte-nginx	239	0.01	263	0.01	-8.42
Rumpus	235	0.01	243	0.01	-2.54
FlowBalancer	227	0.01	227	0.01	0.78
Zope	224	0.01	239	0.01	-5.55
JSP3	223	0.01	221	0.01	1.69
HOSTVN.NET	219	0.01	228	0.01	-3.20
ArvanCloud	216	0.01	215	0.01	1.24
ddosx	214	0.01	218	0.01	-1.07
4D	213	0.01	225	0.01	-4.60
ghs	211	0.01	218	0.01	-2.46
WAF	203	0.01	252	0.01	-18.82
cloudflare-nginx	202	0.01	207	0.01	-1.66
Oracle-Application-Server-10g	202	0.01	209	0.01	-2.60
*	202	0.01	198	0.01	2.81
Windows-Azure-Web	201	0.01	204	0.01	-0.71
SY8045	200	0.01	204	0.01	-1.20
ECS	199	0.01	205	0.01	-2.17
Werkzeug	196	0.01	198	0.01	-0.24
rhino-core-shield	194	0.01	195	0.01	0.26
Odoo.sh	193	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.