You are viewing an outdated report.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) 60,075,403 hostnames, but only 5,216,986 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	August 2019 Count	August 2019 %	July 2019 Count	July 2019 %	Growth %
Apache	2,204,484	42.26	2,191,823	42.72	-1.08
nginx	1,158,113	22.20	1,128,813	22.00	0.91
Microsoft-IIS	711,183	13.63	695,779	13.56	0.53
null	314,742	6.03	313,342	6.11	-1.21
Microsoft-HTTPAPI	308,856	5.92	301,292	5.87	0.82
cloudflare	147,336	2.82	137,248	2.67	5.58
LiteSpeed	54,983	1.05	54,077	1.05	0.00
IdeaWebServer	44,006	0.84	44,081	0.86	-1.81
Tengine	29,973	0.57	17,072	0.33	72.68
BigIP	29,372	0.56	30,047	0.59	-3.85
Apache-Coyote	27,841	0.53	27,478	0.54	-0.35
openresty	15,729	0.30	19,429	0.38	-20.38
AkamaiGHost	15,571	0.30	15,777	0.31	-2.93
Flywheel	11,294	0.22	11,737	0.23	-5.36
AmazonS3	10,245	0.20	10,074	0.20	0.02
awselb	9,287	0.18	8,396	0.16	8.79
wts	5,629	0.11	5,648	0.11	-1.98
lighttpd	5,360	0.10	5,343	0.10	-1.33
Varnish	4,538	0.09	4,530	0.09	-1.47
CloudFront	4,240	0.08	5,387	0.10	-22.59
nginx-reuseport	3,895	0.07	3,827	0.07	0.10
Lotus-Domino	3,441	0.07	3,464	0.07	-2.30
Safedog	3,293	0.06	3,018	0.06	7.32
WWW	3,215	0.06	3,218	0.06	-1.74
nginx-rc	3,124	0.06	2,930	0.06	4.87
EZproxy	2,614	0.05	2,601	0.05	-1.15
kangle	2,046	0.04	2,055	0.04	-2.08
Caddy	1,975	0.04	1,894	0.04	2.56
Cowboy	1,656	0.03	1,733	0.03	-6.01
squid	1,572	0.03	1,589	0.03	-2.70
Firewall	1,532	0.03	1,698	0.03	-11.26
IIS	1,313	0.03	1,376	0.03	-6.15
ws-httpd	1,160	0.02	1,151	0.02	-0.88
Resin	1,064	0.02	1,071	0.02	-2.29
-	987	0.02	1,062	0.02	-8.59
IceWarp	945	0.02	945	0.02	-1.64
Kestrel	924	0.02	1,041	0.02	-12.70
scl	917	0.02	895	0.02	0.77
YxlinkWAF	917	0.02	910	0.02	-0.89
WDaemon	862	0.02	865	0.02	-1.99
Icecast	828	0.02	800	0.02	1.80
Zope	795	0.02	800	0.02	-2.26
GlassFish	788	0.02	778	0.02	-0.38
Destiny	782	0.01	780	0.02	-1.39
VWebServer	774	0.01	761	0.01	0.04
CentOS	751	0.01	732	0.01	0.91
AliyunOSS	751	0.01	732	0.01	0.91
Nginx	736	0.01	705	0.01	2.68
Server	734	0.01	732	0.01	-1.38
ScreenConnect	704	0.01	695	0.01	-0.37
IBM_HTTP_Server	696	0.01	697	0.01	-1.79
sffe	695	0.01	659	0.01	3.73
CHO	670	0.01	669	0.01	-1.50
ECAcc	588	0.01	576	0.01	0.40
III	576	0.01	595	0.01	-4.79
Oracle-Application-Server-10g	570	0.01	577	0.01	-2.84
Rumpus	493	0.01	497	0.01	-2.44
redir-httpd	490	0.01	488	0.01	-1.24
ATS	482	0.01	480	0.01	-1.23
Web	471	0.01	465	0.01	-0.38
OpenBSD	433	0.01	431	0.01	-1.19
EdgePrism	396	0.01	386	0.01	0.90
Protected	393	0.01	389	0.01	-0.63
WildFly	387	0.01	366	0.01	4.00
QRATOR	382	0.01	382	0.01	-1.64
Oracle-Application-Server-11g	365	0.01	371	0.01	-3.24
aruba-proxy	361	0.01	355	0.01	0.02
WebServer	361	0.01	428	0.01	-17.04
web	354	0.01	345	0.01	0.92
CommuniGatePro	350	0.01	358	0.01	-3.84
cc-web	340	0.01	331	0.01	1.03
MageStack-MagentoOS	337	0.01	336	0.01	-1.35
ngjit	331	0.01	329	0.01	-1.05
LRBD-ab58398	327	0.01	324	0.01	-0.73
4D	321	0.01	320	0.01	-1.34
ECS	312	0.01	317	0.01	-3.20
o2switch	309	0.01	301	0.01	0.97
WowzaStreamingEngine	309	0.01	311	0.01	-2.28
*****************	309	0.01	306	0.01	-0.68
Bomgar	305	0.01	316	0.01	-5.07
Netscape-Enterprise	303	0.01	309	0.01	-3.55
Werkzeug	299	0.01	277	0.01	6.17
WAF	297	0.01	300	0.01	-2.63
ghs	290	0.01	297	0.01	-3.96
httpd	286	0.01	285	0.01	-1.30
shield	283	0.01	281	0.01	-0.94
Cougar	273	0.01	279	0.01	-3.76
SonicWALL	254	0.00	246	0.00	1.55
awex	253	0.00	254	0.00	-2.03
gunicorn	250	0.00	253	0.00	-2.81
bfe	250	0.00	250	0.00	-1.64
Footprint	249	0.00	260	0.01	-5.81
ECD	248	0.00	252	0.00	-3.21
1	246	0.00	248	0.00	-2.44
myracloud	244	0.00	239	0.00	0.41
cloudflare-nginx	241	0.00	225	0.00	5.35
Abyss	241	0.00	241	0.00	-1.64
long1	235	0.00	252	0.00	-8.28
F5aaS	235	0.00	225	0.00	2.73
RTS	232	0.00	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.