You are viewing an outdated report.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) 70,979,437 hostnames, but only 5,406,728 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	March 2020 Count	March 2020 %	February 2020 Count	February 2020 %	Growth %
Apache	2,148,778	39.74	2,162,219	39.78	-0.10
nginx	1,310,798	24.24	1,278,690	23.53	3.05
Microsoft-IIS	737,474	13.64	767,391	14.12	-3.39
null	351,832	6.51	352,844	6.49	0.24
Microsoft-HTTPAPI	276,189	5.11	285,690	5.26	-2.81
cloudflare	146,702	2.71	154,328	2.84	-4.44
LiteSpeed	61,652	1.14	60,459	1.11	2.51
Nginx	47,701	0.88	41,455	0.76	15.68
IdeaWebServer	42,924	0.79	43,168	0.79	-0.04
Tengine	34,088	0.63	39,426	0.73	-13.08
BigIP	29,827	0.55	29,685	0.55	1.01
Apache-Coyote	25,735	0.48	25,796	0.47	0.29
openresty	20,187	0.37	18,396	0.34	10.32
AkamaiGHost	16,696	0.31	19,957	0.37	-15.90
awselb	15,323	0.28	14,089	0.26	9.33
AmazonS3	10,012	0.19	9,581	0.18	5.05
Flywheel	8,402	0.16	8,611	0.16	-1.91
CloudFront	6,947	0.13	6,497	0.12	7.49
wts	5,524	0.10	5,426	0.10	2.34
lighttpd	4,781	0.09	4,884	0.09	-1.59
nginx-reuseport	4,173	0.08	4,142	0.08	1.28
nginx-rc	4,154	0.08	3,984	0.07	4.82
Varnish	4,049	0.07	3,971	0.07	2.50
Lotus-Domino	3,112	0.06	3,186	0.06	-1.81
EZproxy	2,617	0.05	2,649	0.05	-0.69
Caddy	2,409	0.04	2,326	0.04	4.12
WWW	2,344	0.04	2,494	0.05	-5.52
Safedog	2,038	0.04	2,759	0.05	-25.74
kangle	1,762	0.03	2,012	0.04	-11.96
Cowboy	1,442	0.03	1,481	0.03	-2.12
squid	1,379	0.03	1,395	0.03	-0.62
Firewall	1,319	0.02	1,282	0.02	3.43
ws-httpd	1,163	0.02	1,173	0.02	-0.33
IIS	1,095	0.02	1,140	0.02	-3.44
scl	1,028	0.02	1,009	0.02	2.42
AliyunOSS	1,022	0.02	906	0.02	13.40
Resin	1,021	0.02	1,024	0.02	0.23
Icecast	890	0.02	898	0.02	-0.37
IceWarp	887	0.02	901	0.02	-1.03
YxlinkWAF	880	0.02	854	0.02	3.59
WDaemon	808	0.01	815	0.01	-0.33
Server	806	0.01	792	0.01	2.31
VWebServer	784	0.01	745	0.01	5.79
Destiny	749	0.01	770	0.01	-2.21
-	749	0.01	905	0.02	-16.80
GlassFish	736	0.01	735	0.01	0.67
Zope	673	0.01	687	0.01	-1.52
sffe	670	0.01	639	0.01	5.41
ScreenConnect	649	0.01	663	0.01	-1.59
Kestrel	641	0.01	628	0.01	2.61
CHO	639	0.01	642	0.01	0.06
nginx-clojure	610	0.01	942	0.02	-34.90
Microsoft-Azure-Application-Gateway	574	0.01	488	0.01	18.24
IBM_HTTP_Server	565	0.01	570	0.01	-0.35
CentOS	550	0.01	571	0.01	-3.17
ECAcc	548	0.01	547	0.01	0.71
ngjit	547	0.01	486	0.01	13.15
Oracle-Application-Server-10g	522	0.01	529	0.01	-0.80
o2switch-PowerBoost-v3	511	0.01	483	0.01	6.36
redir-httpd	487	0.01	487	0.01	0.53
EdgePrism	465	0.01	465	0.01	0.53
III	458	0.01	472	0.01	-2.45
Rumpus	457	0.01	472	0.01	-2.67
OpenBSD	452	0.01	449	0.01	1.20
ATS	443	0.01	450	0.01	-1.04
QRATOR	414	0.01	412	0.01	1.02
Web	409	0.01	409	0.01	0.53
aruba-proxy	391	0.01	384	0.01	2.36
WildFly	365	0.01	366	0.01	0.25
cc-web	352	0.01	348	0.01	1.68
4D	339	0.01	330	0.01	3.27
Prometheus	331	0.01	288	0.01	15.54
Protected	330	0.01	350	0.01	-5.22
MageStack-MagentoOS	324	0.01	327	0.01	-0.39
LRBD-c148be0	324	0.01	326	0.01	-0.09
CommuniGatePro	324	0.01	327	0.01	-0.39
shield	322	0.01	330	0.01	-1.91
WAF	317	0.01	346	0.01	-7.90
ghs	311	0.01	301	0.01	3.87
Netscape-Enterprise	308	0.01	306	0.01	1.19
WebServer	306	0.01	313	0.01	-1.72
WowzaStreamingEngine	301	0.01	308	0.01	-1.76
Oracle-Application-Server-11g	301	0.01	307	0.01	-1.44
ECS	299	0.01	292	0.01	2.94
web	298	0.01	308	0.01	-2.74
Werkzeug	295	0.01	299	0.01	-0.82
TornadoServer	293	0.01	348	0.01	-15.36
unknown	289	0.01	318	0.01	-8.64
UploadServer	282	0.01	273	0.01	3.84
*****************	276	0.01	268	0.00	3.53
F5aaS	270	0.00	267	0.00	1.66
httpd	267	0.00	270	0.00	-0.59
myracloud	264	0.00	259	0.00	2.47
ECD	260	0.00	262	0.00	-0.24
cloudflare-nginx	257	0.00	250	0.00	3.34
awex	254	0.00	254	0.00	0.53
bfe	250	0.00	243	0.00	3.42
SonicWALL	248	0.00	256	0.00	-2.61
VK	241	0.00	0	0.00	N/A
gunicorn	239	0.00	242	0.00	-0.72

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.