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) 46,725,743 hostnames, but only 3,360,027 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	February 2025 Count	February 2025 %	January 2025 Count	January 2025 %	Growth %
Apache	1,120,056	33.33	1,138,719	33.31	0.07
nginx	1,059,185	31.52	1,110,260	32.48	-2.94
null	369,125	10.99	344,065	10.06	9.15
Microsoft-IIS	174,385	5.19	177,808	5.20	-0.22
Microsoft-HTTPAPI	147,300	4.38	149,249	4.37	0.41
cloudflare	101,579	3.02	102,503	3.00	0.82
LiteSpeed	99,840	2.97	104,705	3.06	-2.99
awselb	28,948	0.86	35,369	1.03	-16.73
openresty	26,882	0.80	26,638	0.78	2.67
IdeaWebServer	26,430	0.79	18,112	0.53	48.46
CloudFront	22,173	0.66	23,237	0.68	-2.92
Nginx	20,585	0.61	20,655	0.60	1.39
AmazonS3	20,022	0.60	20,280	0.59	0.44
BigIP	18,656	0.56	19,050	0.56	-0.37
AkamaiGHost	15,005	0.45	15,505	0.45	-1.54
Tengine	9,970	0.30	9,529	0.28	6.45
Caddy	7,300	0.22	7,287	0.21	1.92
nginx-rc	6,208	0.18	6,319	0.18	-0.05
Apache-Coyote	5,302	0.16	5,433	0.16	-0.71
Microsoft-Azure-Application-Gateway	5,040	0.15	5,051	0.15	1.52
wts	4,352	0.13	4,391	0.13	0.84
nginx-reuseport	3,297	0.10	3,308	0.10	1.40
ddos-guard	3,125	0.09	3,110	0.09	2.23
Varnish	2,942	0.09	2,969	0.09	0.81
lighttpd	1,936	0.06	1,989	0.06	-0.97
Aws	1,921	0.06	1,931	0.06	1.21
EZproxy	1,708	0.05	1,749	0.05	-0.65
hcdn	1,236	0.04	1,248	0.04	0.76
o2switch-PowerBoost-v3	1,225	0.04	1,209	0.04	3.09
AliyunOSS	1,160	0.03	1,167	0.03	1.13
Lotus-Domino	1,126	0.03	1,167	0.03	-1.84
F-WEB	1,037	0.03	1,034	0.03	2.03
aruba-proxy	1,017	0.03	1,018	0.03	1.64
Golang.Server	965	0.03	965	0.03	1.74
Icecast	938	0.03	965	0.03	-1.11
QRATOR	901	0.03	903	0.03	1.51
CW	875	0.03	743	0.02	19.81
Server	833	0.02	866	0.03	-2.14
Safedog	800	0.02	870	0.03	-6.45
sffe	762	0.02	555	0.02	39.69
rdwr	750	0.02	729	0.02	4.67
squid	536	0.02	549	0.02	-0.67
IceWarp	524	0.02	536	0.02	-0.54
namecheap-nginx	514	0.02	513	0.02	1.94
******	508	0.02	516	0.02	0.16
elb	505	0.02	506	0.01	1.54
stgw	491	0.01	494	0.01	1.12
OpenBSD	482	0.01	489	0.01	0.28
Web	472	0.01	484	0.01	-0.78
istio-envoy	456	0.01	459	0.01	1.07
WAF	438	0.01	485	0.01	-8.12
envoy	434	0.01	439	0.01	0.58
redir-httpd	433	0.01	433	0.01	1.74
myracloud	385	0.01	394	0.01	-0.58
eClass	382	0.01	383	0.01	1.47
Windows-Azure-Blob	375	0.01	380	0.01	0.40
none	368	0.01	358	0.01	4.58
Kestrel	367	0.01	366	0.01	2.02
Angie	365	0.01	349	0.01	6.40
volt-adc	347	0.01	339	0.01	4.14
ldweb	346	0.01	343	0.01	2.63
kangle	346	0.01	366	0.01	-3.82
WWW	346	0.01	367	0.01	-4.08
WVS	346	0.01	347	0.01	1.45
UploadServer	315	0.01	287	0.01	11.66
Odoo.sh	314	0.01	313	0.01	2.06
OVHcloud	310	0.01	310	0.01	1.74
*********	278	0.01	284	0.01	-0.41
OOS	273	0.01	282	0.01	-1.51
WDaemon	270	0.01	276	0.01	-0.47
JSP3	245	0.01	247	0.01	0.92
cc-web	240	0.01	240	0.01	1.74
IIS	236	0.01	248	0.01	-3.18
cdn	229	0.01	225	0.01	3.55
ghs	225	0.01	215	0.01	6.47
LTC-h3	221	0.01	222	0.01	1.28
ArvanCloud	212	0.01	214	0.01	0.79
Destiny	209	0.01	213	0.01	-0.17
Windows-Azure-Web	207	0.01	206	0.01	2.23
CloudWAF	202	0.01	317	0.01	-35.17
**********	200	0.01	199	0.01	2.25
*	199	0.01	201	0.01	0.73
snow_adc	198	0.01	220	0.01	-8.43
GlassFish	193	0.01	204	0.01	-3.75
Resin	192	0.01	193	0.01	1.21
cmproxy	182	0.01	188	0.01	-1.51
BigScoots	182	0.01	0	0.00	N/A
Rumpus	173	0.01	177	0.01	-0.56
proxygen-bolt	171	0.01	198	0.01	-12.13
ATS	169	0.01	177	0.01	-2.86
SY8045	167	0.00	163	0.00	4.24
kittenx	164	0.00	162	0.00	3.00
4D	160	0.00	177	0.01	-8.03
Fly	159	0.00	160	0.00	1.10
ClausWeb-nginx	158	0.00	166	0.00	-3.16
gunicorn	156	0.00	0	0.00	N/A
Werkzeug	156	0.00	163	0.00	-2.63
Sucuri	156	0.00	0	0.00	N/A
CommuniGatePro	155	0.00	158	0.00	-0.19
webserver	147	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.