You are viewing an outdated report.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) 56,567,648 hostnames, but only 3,861,616 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 2023 Count	September 2023 %	August 2023 Count	August 2023 %	Growth %
Apache	1,399,795	36.25	1,414,156	36.34	-0.25
nginx	1,214,560	31.45	1,236,018	31.76	-0.98
null	382,419	9.90	385,657	9.91	-0.08
Microsoft-IIS	235,314	6.09	238,928	6.14	-0.76
Microsoft-HTTPAPI	135,670	3.51	138,698	3.56	-1.43
cloudflare	102,971	2.67	103,028	2.65	0.71
LiteSpeed	86,177	2.23	85,549	2.20	1.51
awselb	39,041	1.01	36,317	0.93	8.33
IdeaWebServer	30,784	0.80	20,261	0.52	53.11
BigIP	23,331	0.60	23,598	0.61	-0.37
AmazonS3	20,356	0.53	20,344	0.52	0.83
Nginx	19,681	0.51	18,827	0.48	5.34
openresty	17,935	0.46	18,224	0.47	-0.83
AkamaiGHost	15,853	0.41	16,206	0.42	-1.43
CloudFront	13,428	0.35	10,547	0.27	28.29
Tengine	13,418	0.35	13,306	0.34	1.62
Apache-Coyote	8,368	0.22	8,554	0.22	-1.42
nginx-rc	6,650	0.17	6,667	0.17	0.51
Varnish	5,871	0.15	5,877	0.15	0.67
Caddy	5,161	0.13	5,108	0.13	1.81
wts	4,735	0.12	4,764	0.12	0.16
Microsoft-Azure-Application-Gateway	4,207	0.11	4,135	0.11	2.52
nginx-reuseport	3,562	0.09	3,621	0.09	-0.87
lighttpd	2,676	0.07	2,729	0.07	-1.19
ddos-guard	2,208	0.06	2,161	0.06	2.96
EZproxy	2,002	0.05	2,031	0.05	-0.67
hcdn	1,595	0.04	1,648	0.04	-2.47
F-WEB	1,564	0.04	1,562	0.04	0.90
Lotus-Domino	1,545	0.04	1,587	0.04	-1.90
AliyunOSS	1,258	0.03	1,269	0.03	-0.10
Server	1,007	0.03	1,057	0.03	-4.00
aruba-proxy	1,003	0.03	998	0.03	1.27
scl	981	0.03	1,104	0.03	-10.46
Icecast	966	0.03	966	0.02	0.77
o2switch-PowerBoost-v3	942	0.02	932	0.02	1.85
QRATOR	828	0.02	799	0.02	4.43
squid	737	0.02	759	0.02	-2.15
CloudWAF	709	0.02	688	0.02	3.84
IceWarp	627	0.02	634	0.02	-0.34
rdwr	542	0.01	523	0.01	4.43
elb	535	0.01	534	0.01	0.96
WWW	516	0.01	498	0.01	4.41
namecheap-nginx	510	0.01	509	0.01	0.97
******	497	0.01	439	0.01	14.08
OpenBSD	484	0.01	486	0.01	0.35
kangle	482	0.01	476	0.01	2.04
Kestrel	473	0.01	543	0.01	-12.22
redir-httpd	448	0.01	449	0.01	0.54
stgw	438	0.01	425	0.01	3.85
sffe	438	0.01	470	0.01	-6.09
Safedog	428	0.01	410	0.01	5.19
BitNinja	417	0.01	0	0.00	N/A
ECAcc	416	0.01	407	0.01	3.00
WVS	414	0.01	418	0.01	-0.20
istio-envoy	409	0.01	415	0.01	-0.69
envoy	407	0.01	406	0.01	1.02
CHO	401	0.01	401	0.01	0.77
ScreenConnect	388	0.01	389	0.01	0.51
eClass	377	0.01	364	0.01	4.37
Web	372	0.01	371	0.01	1.04
*********	368	0.01	366	0.01	1.32
IIS	360	0.01	335	0.01	8.29
WDaemon	357	0.01	368	0.01	-2.24
none	351	0.01	357	0.01	-0.92
Windows-Azure-Blob	350	0.01	338	0.01	4.35
Google	342	0.01	346	0.01	-0.40
Destiny	340	0.01	340	0.01	0.77
myracloud	330	0.01	372	0.01	-10.61
UploadServer	327	0.01	328	0.01	0.46
Fly	327	0.01	324	0.01	1.70
web	298	0.01	312	0.01	-3.75
ldweb	298	0.01	291	0.01	3.19
ClausWeb-nginx	293	0.01	299	0.01	-1.25
GlassFish	287	0.01	295	0.01	-1.96
Resin	283	0.01	295	0.01	-3.33
ATS	279	0.01	279	0.01	0.77
cc-web	275	0.01	280	0.01	-1.03
Byte-nginx	253	0.01	236	0.01	8.03
wits	252	0.01	249	0.01	1.98
PowerSchool	248	0.01	247	0.01	1.18
awex	242	0.01	244	0.01	-0.06
Zope	242	0.01	251	0.01	-2.84
WAF	241	0.01	248	0.01	-2.08
Rumpus	241	0.01	247	0.01	-1.68
HOSTVN.NET	230	0.01	231	0.01	0.33
4D	228	0.01	228	0.01	0.77
FlowBalancer	227	0.01	227	0.01	0.77
ddosx	224	0.01	237	0.01	-4.76
MageStack-MagentoOS	224	0.01	221	0.01	2.14
ghs	223	0.01	232	0.01	-3.14
JSP3	221	0.01	230	0.01	-3.17
cloudflare-nginx	215	0.01	217	0.01	-0.16
Oracle-Application-Server-10g	214	0.01	220	0.01	-1.98
ArvanCloud	214	0.01	211	0.01	2.20
cdn	206	0.01	326	0.01	-36.32
SY8045	205	0.01	206	0.01	0.28
ECS	203	0.01	202	0.01	1.27
Windows-Azure-Web	198	0.01	0	0.00	N/A
*	197	0.01	200	0.01	-0.74
rhino-core-shield	196	0.01	200	0.01	-1.25

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.