You are viewing an outdated report. The latest version of this report was published on March 1st, 2023

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) 2,106,417 hostnames, but only 1,194,230 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	April 2000 Count	April 2000 %	March 2000 Count	March 2000 %	Growth %
Apache	546,989	45.80	542,468	45.92	-0.26
Microsoft-IIS	380,895	31.89	368,431	31.19	2.27
Netscape-Enterprise	45,990	3.85	46,547	3.94	-2.26
thttpd	43,845	3.67	44,986	3.81	-3.59
Rapidsite	35,022	2.93	34,733	2.94	-0.26
null	16,722	1.40	17,252	1.46	-4.12
WebSitePro	14,558	1.22	14,984	1.27	-3.89
Stronghold	10,508	0.88	10,860	0.92	-4.29
Lotus-Domino	9,578	0.80	9,312	0.79	1.75
WebSTAR	9,138	0.77	9,070	0.77	-0.34
NCSA	9,027	0.76	9,442	0.80	-5.43
Netscape-FastTrack	7,521	0.63	8,139	0.69	-8.59
WN	6,237	0.52	6,330	0.54	-2.53
BESTWWWD	6,013	0.50	6,106	0.52	-2.59
Roxen·Challenger	3,121	0.26	3,052	0.26	1.16
CERN	2,758	0.23	2,969	0.25	-8.11
Netscape-Communications	2,726	0.23	2,846	0.24	-5.25
Zeus	2,720	0.23	2,658	0.22	1.23
Apache-1.3.4	2,581	0.22	2,575	0.22	-0.85
Red	1,896	0.16	1,893	0.16	-0.92
Netscape-Commerce	1,695	0.14	1,760	0.15	-4.73
Novell-HTTP-Server	1,530	0.13	1,618	0.14	-6.46
mod_perl	1,331	0.11	1,367	0.12	-3.68
AppleShareIP	1,265	0.11	1,257	0.11	-0.45
WebSite	1,235	0.10	1,308	0.11	-6.60
FileMakerPro	1,146	0.10	1,109	0.09	2.22
ApacheFP	1,036	0.09	1,052	0.09	-2.58
Oracle_Web_Listener	995	0.08	912	0.08	7.92
OSU	905	0.08	912	0.08	-1.84
Domino-Go-Webserver	838	0.07	826	0.07	0.36
Commerce-Builder	713	0.06	818	0.07	-13.78
Affinity-Apache	697	0.06	714	0.06	-3.43
HPWB	693	0.06	535	0.05	28.13
NaviServer	657	0.06	721	0.06	-9.86
Purveyor	560	0.05	531	0.04	4.32
FirstClass	560	0.05	533	0.05	3.93
QuidProQuo	559	0.05	578	0.05	-4.33
MacHTTP	552	0.05	580	0.05	-5.86
Microsoft-Internet-Information-Server	536	0.04	623	0.05	-14.89
Microsoft-PWS-95	522	0.04	554	0.05	-6.79
SWS-1.0	518	0.04	543	0.05	-5.63
IBM-HTTP-Server	516	0.04	465	0.04	9.77
Microsoft-PWS	497	0.04	524	0.04	-6.18
SAMBAR	492	0.04	480	0.04	1.39
Worldgroup	487	0.04	491	0.04	-1.89
ApacheSSL	475	0.04	497	0.04	-5.46
Xitami	458	0.04	456	0.04	-0.65
JavaWebServer	435	0.04	431	0.04	-0.16
AiNET	372	0.03	361	0.03	1.93
Apache-NeoWebScript	360	0.03	375	0.03	-5.04
IBM-ICS	339	0.03	337	0.03	-0.49
IBM_HTTP_Server	308	0.03	279	0.02	9.20
Lasso	287	0.02	274	0.02	3.61
OmniHTTPd	285	0.02	279	0.02	1.05
Oracle_Web_listener3.0.2.0.0	271	0.02	267	0.02	0.40
IdeaWebServer	265	0.02	0	0.00	N/A
Ipswitch-IMail	259	0.02	235	0.02	9.02
MACOS_Personal_Websharing	248	0.02	250	0.02	-1.87
Open-Market-Secure-WebServer	239	0.02	250	0.02	-5.43
Ultraseek	234	0.02	221	0.02	4.74
Sun_WebServer	227	0.02	212	0.02	5.92
FrontPage-PWS32	224	0.02	220	0.02	0.72
Squid	220	0.02	250	0.02	-12.95
Apache-EUnet	202	0.02	206	0.02	-3.00
Mini-Proxy	192	0.02	206	0.02	-7.80
ConcentricHost-Ashurbanipal	189	0.02	207	0.02	-9.68
PowerWeb	182	0.02	204	0.02	-11.75
eShare-Expressions	180	0.02	188	0.02	-5.29
Oracle_Web_listener2.1	179	0.01	181	0.02	-2.17
Web_Server_4D	178	0.01	165	0.01	6.71
NetWare-Enterprise-Web-Server	177	0.01	97	0.01	80.50
Statistics	167	0.01	163	0.01	1.35
IgServ	151	0.01	159	0.01	-6.06
Apache-SSL-US	146	0.01	164	0.01	-11.94
Oracle_Web_listener3.0	142	0.01	148	0.01	-5.09
CommerceServer400	138	0.01	124	0.01	10.09
Powered	136	0.01	149	0.01	-9.71
Lotus	134	0.01	142	0.01	-6.65
Oracle_Web_Listener_NT_2.1.0.3.1	129	0.01	113	0.01	12.93
Alibaba	127	0.01	152	0.01	-17.35
HTTPS	125	0.01	132	0.01	-6.33
NetPresenz	123	0.01	125	0.01	-2.66
AnWeb	116	0.01	106	0.01	8.25
AppleWSE	111	0.01	122	0.01	-10.00
Roxen	109	0.01	96	0.01	12.32
David-WebBox	104	0.01	110	0.01	-6.48
Oracle_Web_listener3.0.1.0.0	100	0.01	105	0.01	-5.79
IBM	99	0.01	99	0.01	-1.08
Oracle_Web_listener2.0	97	0.01	88	0.01	9.04
InfoWest.COM-Custom-Apache	96	0.01	87	0.01	9.15
CONNECTnet[welp3]	94	0.01	97	0.01	-4.14
Web	89	0.01	73	0.01	20.60
Unknown	88	0.01	0	0.00	N/A
Oracle_Web_listener3.0.1	88	0.01	91	0.01	-4.34
GoServe	85	0.01	92	0.01	-8.61
WebTopia	77	0.01	77	0.01	-1.08
MHttpd	77	0.01	74	0.01	2.93
HTTP	75	0.01	0	0.00	N/A
ConferenceRoom	65	0.01	71	0.01	-9.44
TopNet	63	0.01	67	0.01	-6.99

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.