You are viewing an outdated report. The latest version of this report was published on September 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) 58,137,608 hostnames, but only 3,999,481 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	May 2023 Count	May 2023 %	April 2023 Count	April 2023 %	Growth %
Apache	1,458,242	36.46	1,463,181	36.57	-0.30
nginx	1,267,809	31.70	1,275,308	31.87	-0.55
null	382,504	9.56	383,136	9.58	-0.12
Microsoft-IIS	257,611	6.44	258,806	6.47	-0.42
Microsoft-HTTPAPI	145,600	3.64	146,447	3.66	-0.54
cloudflare	101,711	2.54	101,317	2.53	0.43
LiteSpeed	84,674	2.12	84,186	2.10	0.62
awselb	35,313	0.88	34,297	0.86	3.01
openresty	25,392	0.63	25,630	0.64	-0.89
BigIP	24,284	0.61	24,412	0.61	-0.48
IdeaWebServer	20,740	0.52	8,275	0.21	150.74
AmazonS3	20,517	0.51	20,683	0.52	-0.76
Nginx	19,211	0.48	18,697	0.47	2.79
AkamaiGHost	17,939	0.45	18,138	0.45	-1.06
Tengine	13,533	0.34	13,396	0.33	1.07
CloudFront	11,160	0.28	12,051	0.30	-7.35
Apache-Coyote	9,376	0.23	9,415	0.24	-0.37
nginx-rc	6,698	0.17	6,687	0.17	0.21
Varnish	5,877	0.15	5,851	0.15	0.49
Caddy	4,986	0.12	4,929	0.12	1.20
wts	4,805	0.12	4,850	0.12	-0.89
Microsoft-Azure-Application-Gateway	3,950	0.10	3,909	0.10	1.09
nginx-reuseport	3,697	0.09	3,701	0.09	-0.07
lighttpd	2,831	0.07	2,881	0.07	-1.69
EZproxy	2,084	0.05	2,083	0.05	0.09
ddos-guard	2,006	0.05	1,970	0.05	1.87
Lotus-Domino	1,660	0.04	1,664	0.04	-0.20
F-WEB	1,575	0.04	1,573	0.04	0.17
AliyunOSS	1,261	0.03	1,269	0.03	-0.59
scl	1,158	0.03	1,184	0.03	-2.15
Server	1,135	0.03	1,087	0.03	4.46
aruba-proxy	1,000	0.03	992	0.02	0.85
Kestrel	967	0.02	843	0.02	14.76
Icecast	920	0.02	922	0.02	-0.17
o2switch-PowerBoost-v3	902	0.02	901	0.02	0.15
squid	786	0.02	784	0.02	0.30
QRATOR	779	0.02	765	0.02	1.87
IceWarp	659	0.02	661	0.02	-0.26
CloudWAF	653	0.02	643	0.02	1.60
sffe	549	0.01	488	0.01	12.55
elb	547	0.01	538	0.01	1.72
WWW	525	0.01	524	0.01	0.23
namecheap-nginx	510	0.01	510	0.01	0.04
OpenBSD	483	0.01	478	0.01	1.09
******	482	0.01	497	0.01	-2.98
kangle	479	0.01	476	0.01	0.67
rdwr	457	0.01	479	0.01	-4.55
Safedog	443	0.01	683	0.02	-35.11
WVS	427	0.01	431	0.01	-0.89
CHO	414	0.01	416	0.01	-0.44
ECAcc	411	0.01	415	0.01	-0.92
stgw	410	0.01	403	0.01	1.78
ScreenConnect	409	0.01	413	0.01	-0.93
istio-envoy	408	0.01	394	0.01	3.60
BitNinja	405	0.01	251	0.01	61.42
Web	391	0.01	378	0.01	3.48
*********	388	0.01	390	0.01	-0.47
Destiny	387	0.01	393	0.01	-1.49
envoy	385	0.01	388	0.01	-0.73
WDaemon	382	0.01	381	0.01	0.30
NgxFence	379	0.01	348	0.01	8.95
none	373	0.01	364	0.01	2.52
eClass	373	0.01	373	0.01	0.04
myracloud	357	0.01	356	0.01	0.32
Google	349	0.01	362	0.01	-3.55
Fly	337	0.01	332	0.01	1.55
uvicorn	334	0.01	0	0.00	N/A
UploadServer	332	0.01	331	0.01	0.34
IIS	327	0.01	324	0.01	0.97
ATS	321	0.01	334	0.01	-3.85
GlassFish	320	0.01	323	0.01	-0.89
web	318	0.01	305	0.01	4.31
Windows-Azure-Blob	316	0.01	316	0.01	0.04
Resin	312	0.01	306	0.01	2.00
redir-httpd	300	0.01	451	0.01	-33.45
ClausWeb-nginx	299	0.01	300	0.01	-0.29
cdn	293	0.01	307	0.01	-4.52
cc-web	287	0.01	289	0.01	-0.65
Zope	276	0.01	274	0.01	0.77
ldweb	274	0.01	271	0.01	1.15
ghs	267	0.01	284	0.01	-5.95
PowerSchool	266	0.01	264	0.01	0.80
Rumpus	262	0.01	259	0.01	1.20
wits	254	0.01	263	0.01	-3.38
WAF	244	0.01	255	0.01	-4.27
awex	243	0.01	232	0.01	4.79
4D	242	0.01	242	0.01	0.04
ddosx	240	0.01	247	0.01	-2.79
cloudflare-nginx	237	0.01	241	0.01	-1.62
Oracle-Application-Server-10g	235	0.01	234	0.01	0.47
JSP3	232	0.01	224	0.01	3.62
MageStack-MagentoOS	229	0.01	229	0.01	0.04
HOSTVN.NET	228	0.01	223	0.01	2.29
FlowBalancer	227	0.01	227	0.01	0.04
ArvanCloud	213	0.01	214	0.01	-0.43
-	211	0.01	255	0.01	-17.22
proxygen-bolt	210	0.01	0	0.00	N/A
ECS	210	0.01	209	0.01	0.52
SY8045	207	0.01	205	0.01	1.02
Netscape-Enterprise	205	0.01	205	0.01	0.04

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.