You are viewing an outdated report.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) 59,902,782 hostnames, but only 5,131,187 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	July 2019 Count	July 2019 %	June 2019 Count	June 2019 %	Growth %
Apache	2,191,823	42.72	2,192,534	43.33	-1.43
nginx	1,128,813	22.00	1,105,517	21.85	0.68
Microsoft-IIS	695,779	13.56	677,587	13.39	1.25
null	313,342	6.11	310,014	6.13	-0.34
Microsoft-HTTPAPI	301,292	5.87	294,722	5.82	0.80
cloudflare	137,248	2.67	122,603	2.42	10.38
LiteSpeed	54,077	1.05	50,034	0.99	6.57
IdeaWebServer	44,081	0.86	44,007	0.87	-1.23
BigIP	30,047	0.59	29,845	0.59	-0.73
Apache-Coyote	27,478	0.54	27,516	0.54	-1.53
openresty	19,429	0.38	18,382	0.36	4.22
Tengine	17,072	0.33	16,758	0.33	0.45
AkamaiGHost	15,777	0.31	16,510	0.33	-5.77
Flywheel	11,737	0.23	12,061	0.24	-4.04
AmazonS3	10,074	0.20	9,338	0.18	6.38
awselb	8,396	0.16	7,876	0.16	5.12
wts	5,648	0.11	5,536	0.11	0.60
CloudFront	5,387	0.10	4,127	0.08	28.71
lighttpd	5,343	0.10	5,412	0.11	-2.65
Varnish	4,530	0.09	4,646	0.09	-3.86
nginx-reuseport	3,827	0.07	3,753	0.07	0.55
Lotus-Domino	3,464	0.07	3,489	0.07	-2.10
WWW	3,218	0.06	3,352	0.07	-5.34
Safedog	3,018	0.06	2,761	0.05	7.78
nginx-rc	2,930	0.06	2,767	0.05	4.42
EZproxy	2,601	0.05	2,618	0.05	-2.03
kangle	2,055	0.04	2,218	0.04	-8.64
Caddy	1,894	0.04	1,864	0.04	0.19
Cowboy	1,733	0.03	1,745	0.03	-2.07
Firewall	1,698	0.03	1,726	0.03	-2.99
squid	1,589	0.03	1,679	0.03	-6.68
IIS	1,376	0.03	1,561	0.03	-13.08
ws-httpd	1,151	0.02	1,149	0.02	-1.22
Resin	1,071	0.02	1,071	0.02	-1.39
-	1,062	0.02	1,053	0.02	-0.55
Kestrel	1,041	0.02	1,216	0.02	-15.58
IceWarp	945	0.02	951	0.02	-2.02
YxlinkWAF	910	0.02	901	0.02	-0.41
scl	895	0.02	895	0.02	-1.39
WDaemon	865	0.02	879	0.02	-2.96
Zope	800	0.02	824	0.02	-4.27
Icecast	800	0.02	775	0.02	1.79
Destiny	780	0.02	794	0.02	-3.13
GlassFish	778	0.02	793	0.02	-3.26
VWebServer	761	0.01	760	0.02	-1.26
Server	732	0.01	716	0.01	0.81
CentOS	732	0.01	738	0.01	-2.20
AliyunOSS	732	0.01	697	0.01	3.56
Nginx	705	0.01	707	0.01	-1.67
IBM_HTTP_Server	697	0.01	721	0.01	-4.68
ScreenConnect	695	0.01	703	0.01	-2.52
CHO	669	0.01	674	0.01	-2.13
sffe	659	0.01	777	0.02	-16.37
III	595	0.01	648	0.01	-9.46
Oracle-Application-Server-10g	577	0.01	581	0.01	-2.07
ECAcc	576	0.01	577	0.01	-1.56
Rumpus	497	0.01	495	0.01	-1.00
redir-httpd	488	0.01	487	0.01	-1.19
ATS	480	0.01	479	0.01	-1.19
Web	465	0.01	459	0.01	-0.10
OpenBSD	431	0.01	421	0.01	0.95
WebServer	428	0.01	459	0.01	-8.05
Protected	389	0.01	379	0.01	1.21
EdgePrism	386	0.01	464	0.01	-17.97
QRATOR	382	0.01	384	0.01	-1.91
Oracle-Application-Server-11g	371	0.01	378	0.01	-3.22
WildFly	366	0.01	368	0.01	-1.93
CommuniGatePro	358	0.01	364	0.01	-3.02
aruba-proxy	355	0.01	349	0.01	0.30
web	345	0.01	374	0.01	-9.04
MageStack-MagentoOS	336	0.01	317	0.01	4.52
cc-web	331	0.01	337	0.01	-3.15
ngjit	329	0.01	322	0.01	0.75
LRBD-ab58398	324	0.01	320	0.01	-0.16
4D	320	0.01	306	0.01	3.12
ECS	317	0.01	322	0.01	-2.92
Bomgar	316	0.01	341	0.01	-8.62
WowzaStreamingEngine	311	0.01	314	0.01	-2.34
Netscape-Enterprise	309	0.01	285	0.01	6.91
*****************	306	0.01	314	0.01	-3.91
PWS	304	0.01	342	0.01	-12.35
o2switch	301	0.01	282	0.01	5.25
WAF	300	0.01	295	0.01	0.28
ghs	297	0.01	293	0.01	-0.05
httpd	285	0.01	297	0.01	-5.38
shield	281	0.01	275	0.01	0.76
Cougar	279	0.01	292	0.01	-5.78
Werkzeug	277	0.01	275	0.01	-0.68
Footprint	260	0.01	260	0.01	-1.39
awex	254	0.00	254	0.01	-1.39
gunicorn	253	0.00	243	0.00	2.66
long1	252	0.00	252	0.00	-1.39
ECD	252	0.00	249	0.00	-0.21
bfe	250	0.00	252	0.00	-2.18
1	248	0.00	246	0.00	-0.59
SonicWALL	246	0.00	249	0.00	-2.58
Abyss	241	0.00	243	0.00	-2.21
myracloud	239	0.00	239	0.00	-1.39
cloudflare-nginx	225	0.00	0	0.00	N/A
F5aaS	225	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.