Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 15543659 web servers by the ISPs' networks over which their traffic flows, the report provides a view of the top ISPs on the Internet.

ISP Domain Name	Apr 2005 Count*	Apr 2005 %	Mar 2005 Count*	Mar 2005 %	Growth %
schlund.de	575,042	3.70	549,660	3.77	-1.74
a.dns.jp	443,559	2.85	425,218	2.91	-2.03
theplanet.com	403,921	2.60	293,462	2.01	29.27
verio.net	296,630	1.91	282,882	1.94	-1.51
uu.net	254,848	1.64	254,230	1.74	-5.85
dns.kr	242,203	1.56	236,072	1.62	-3.64
lacnic.net	242,009	1.56	222,618	1.52	2.10
a.dns.br	163,956	1.05	146,589	1.00	5.05
sprintlink.net	147,406	0.95	101,338	0.69	36.62
att.net	133,432	0.86	128,718	0.88	-2.64
level3.net	130,364	0.84	128,195	0.88	-4.49
cogentco.com	94,068	0.61	83,926	0.57	5.27
qwest.net	92,763	0.60	91,705	0.63	-5.00
secure.net	91,259	0.59	90,659	0.62	-5.46
pnap.net	85,628	0.55	51,747	0.35	55.42
savvis.net	82,669	0.53	79,882	0.55	-2.80
fasthosts.net.uk	74,578	0.48	71,536	0.49	-2.08
above.net	73,893	0.48	67,598	0.46	2.67
alabanza.com	73,558	0.47	73,887	0.51	-6.50
cnc.ac.cn	70,303	0.45	64,297	0.44	2.69
sta.net.cn	66,404	0.43	63,146	0.43	-1.23
ovh.net	64,759	0.42	59,488	0.41	2.24
pri-dns.de	64,377	0.41	59,889	0.41	0.96
kornet.net	63,459	0.41	66,119	0.45	-9.86
tpnet.pl	63,089	0.41	56,880	0.39	4.17
technorail.com	60,921	0.39	58,013	0.40	-1.37
sakura.ad.jp	58,342	0.38	51,044	0.35	7.35
earthlink.net	54,925	0.35	54,843	0.38	-5.94
colt.net	54,028	0.35	45,539	0.31	11.43
cncnet.net	52,531	0.34	49,797	0.34	-0.92
dtag.de	51,588	0.33	50,807	0.35	-4.63
wcg.net	50,288	0.32	41,877	0.29	12.79
yandex.ru	50,091	0.32	41,770	0.29	12.63
twtelecom.net	46,376	0.30	60,668	0.42	-28.20
guangzhou.gd.cn	45,441	0.29	36,921	0.25	15.59
hosteurope.de	43,130	0.28	41,036	0.28	-1.29
plusserver.de	42,737	0.27	40,107	0.27	0.08
tele.dk	42,235	0.27	40,860	0.28	-2.92
rt.ru	42,012	0.27	42,390	0.29	-6.92
dn.net	41,553	0.27	37,813	0.26	3.21
namespace4you.de	41,102	0.26	39,467	0.27	-2.19
leaseweb.nl	39,991	0.26	34,354	0.24	9.33
ocn.ad.jp	39,825	0.26	38,601	0.26	-3.10
datasync.com	39,799	0.26	832	0.01	4392.76
interq.or.jp	38,925	0.25	37,421	0.26	-2.30
hananet.net	37,775	0.24	39,525	0.27	-10.24
dns.fz.fj.cn	37,652	0.24	36,376	0.25	-2.78
your-server.de	36,782	0.24	33,950	0.23	1.76
interbusiness.it	36,425	0.23	36,932	0.25	-7.37
ipx-server.de	36,147	0.23	31,905	0.22	6.41
eli.net	36,136	0.23	31,620	0.22	7.34
swbell.net	34,558	0.22	31,577	0.22	2.79
interland.net	34,426	0.22	72,298	0.50	-55.28
clara.net	34,035	0.22	35,657	0.24	-10.35
masterhost.ru	33,848	0.22	28,651	0.20	10.96
webfusion.co.uk	32,516	0.21	28,267	0.19	8.04
cn.net	32,447	0.21	26,609	0.18	14.53
pbi.net	31,428	0.20	31,261	0.21	-5.58
cnc-idc.com	30,897	0.20	29,600	0.20	-1.96
widexs.nl	30,863	0.20	30,905	0.21	-6.21
twnic.net	30,669	0.20	30,197	0.21	-4.61
rain.fr	30,418	0.20	28,159	0.19	1.46
pair.com	29,943	0.19	29,571	0.20	-4.90
cihost.com	29,429	0.19	26,897	0.18	2.76
sphere.ad.jp	29,165	0.19	27,954	0.19	-2.01
inode.at	28,944	0.19	26,833	0.18	1.31
uk2.net	28,584	0.18	26,277	0.18	2.17
proserve.nl	28,349	0.18	27,008	0.19	-1.42
concentric.net	28,052	0.18	28,147	0.19	-6.40
rz-ip.net	27,506	0.18	24,632	0.17	4.88
bellsouth.net	26,939	0.17	26,826	0.18	-5.68
kidc.net	26,633	0.17	27,068	0.19	-7.59
bta.net.cn	26,482	0.17	19,053	0.13	30.54
yourhostingaccount.com	26,257	0.17	18,799	0.13	31.18
readyhosting.com	26,116	0.17	25,954	0.18	-5.49
xs4all.nl	25,836	0.17	23,885	0.16	1.59
zjhzptt.net.cn	25,340	0.16	20,728	0.14	14.82
nac.net	25,046	0.16	22,878	0.16	2.82
localhost	23,898	0.15	18,294	0.13	22.69
nmc1.ptt.js.cn	23,768	0.15	22,473	0.15	-0.67
cais.com	23,619	0.15	20,939	0.14	5.94
valueweb.net	22,876	0.15	22,978	0.16	-6.50
bsve.net	22,673	0.15	22,578	0.15	-5.68
servidoresdns.net	22,632	0.15	22,104	0.15	-3.84
amenworld.com	22,626	0.15	20,778	0.14	2.27
agarik.com	22,513	0.14	16,856	0.12	25.44
mtu.ru	22,494	0.14	22,572	0.15	-6.40
bt.net	22,301	0.14	22,370	0.15	-6.37
inetbone.net	22,137	0.14	27,565	0.19	-24.57
proxad.net	22,131	0.14	61,881	0.42	-66.41
ns.embratel.net.br	22,089	0.14	20,720	0.14	0.13
lambdanet.net	22,053	0.14	17,783	0.12	16.47
epidc.co.kr	21,959	0.14	22,552	0.15	-8.55
rackspace.com	21,320	0.14	13,971	0.10	43.33
geodns.net	20,756	0.13	18,582	0.13	4.91
ip-plus.net	20,720	0.13	20,530	0.14	-5.21
inflow.net	20,686	0.13	19,435	0.13	-0.03
isdnet.net	20,673	0.13	17,779	0.12	9.21
demon.co.uk	20,607	0.13	17,400	0.12	11.23
nacamar.net	20,395	0.13	21,156	0.14	-9.46
gldn.net	20,231	0.13	20,398	0.14	-6.85
hinet.net	20,208	0.13	19,850	0.14	-4.38
dion.ne.jp	19,726	0.13	19,742	0.14	-6.15
enta.net	19,722	0.13	19,533	0.13	-5.17
gxn.net	19,229	0.12	15,629	0.11	15.56
donhost.co.uk	19,214	0.12	19,133	0.13	-5.68
netgate.net.nz	19,188	0.12	19,112	0.13	-5.71
peer1.net	19,179	0.12	18,664	0.13	-3.49
iomart.co.uk	18,869	0.12	13,010	0.09	36.22
mcbone.net	18,738	0.12	18,108	0.12	-2.81
uol.com.br	18,595	0.12	15,927	0.11	9.65
server-dns.com	18,562	0.12	18,433	0.13	-5.42
ripn.net	18,380	0.12	18,198	0.12	-5.14
nameservers.net	18,167	0.12	18,061	0.12	-5.53
telia.com	18,069	0.12	17,355	0.12	-2.21
dacom.co.kr	17,963	0.12	17,743	0.12	-4.91
rr.com	17,917	0.12	16,899	0.12	-0.42
interware.hu	17,897	0.12	15,396	0.11	9.18
magic-moments.com	17,845	0.11	17,735	0.12	-5.50
easynet.co.uk	17,818	0.11	16,578	0.11	0.95
gblx.net	17,620	0.11	19,635	0.13	-15.72
pipex.net	17,540	0.11	17,538	0.12	-6.07
fc2.com	17,138	0.11	16,041	0.11	0.34
tmag.de	16,558	0.11	14,975	0.10	3.85
home.pl	16,503	0.11	16,868	0.12	-8.11
vuurwerk.nl	16,440	0.11	16,367	0.11	-5.66
bellglobal.com	16,187	0.10	14,753	0.10	3.05
algx.net	15,987	0.10	14,745	0.10	1.83
hm23	15,378	0.10	15,127	0.10	-4.52
softcomca.com	15,278	0.10	15,114	0.10	-5.06
cerf.net	15,232	0.10	14,829	0.10	-3.53
futuro.pl	15,223	0.10	15,268	0.10	-6.36
kei.pl	15,206	0.10	14,385	0.10	-0.72
addr.com	15,100	0.10	15,079	0.10	-5.95
net.ru	15,007	0.10	12,874	0.09	9.48
b-one-dns.net	14,970	0.10	14,122	0.10	-0.44
uslec.net	14,860	0.10	14,610	0.10	-4.47
cnuninet.net	14,361	0.09	14,855	0.10	-9.20
v-ns.de	14,324	0.09	10,764	0.07	24.98
ladot.com	14,267	0.09	14,003	0.10	-4.31
uunet.ca	14,237	0.09	13,744	0.09	-2.71
valuehost.ru	14,185	0.09	14,255	0.10	-6.54
dimenoc.com	14,043	0.09	1,449	0.01	810.24
euroaccess.nl	13,937	0.09	10,008	0.07	30.79
isd-holland.nl	13,935	0.09	13,572	0.09	-3.57
kasserver.com	13,904	0.09	21,105	0.14	-38.12
corbina.net	13,859	0.09	12,454	0.09	4.52
xlink.net	13,839	0.09	12,463	0.09	4.29
usen.ad.jp	13,772	0.09	12,142	0.08	6.53
ig.com.br	13,674	0.09	4,482	0.03	186.54
komplex.net	13,656	0.09	10,760	0.07	19.20
relcom.ru	13,502	0.09	13,223	0.09	-4.10
cnc-idc.net	13,131	0.08	9,903	0.07	24.54
candidhosting.com	13,117	0.08	12,590	0.09	-2.15
sserv.net	13,116	0.08	12,804	0.09	-3.79
t-online.de	12,978	0.08	12,524	0.09	-2.67
verio.de	12,955	0.08	13,110	0.09	-7.19
sunrise.ch	12,847	0.08	12,550	0.09	-3.86
swip.net	12,740	0.08	12,503	0.09	-4.30
ameritech.net	12,734	0.08	12,483	0.09	-4.19
ocn.ne.jp	12,730	0.08	12,456	0.09	-4.01
evanzo.com	12,695	0.08	11,395	0.08	4.64
netbenefit.co.uk	12,227	0.08	11,930	0.08	-3.74
ikp.pl	12,157	0.08	11,972	0.08	-4.63
activeisp.com	11,991	0.08	11,633	0.08	-3.19
covad.com	11,884	0.08	12,752	0.09	-12.47
firstserver.ne.jp	11,812	0.08	11,658	0.08	-4.84
gtei.net	11,720	0.08	12,112	0.08	-9.12
inet.it	11,707	0.08	15,746	0.11	-30.17
psi.net	11,525	0.07	11,338	0.08	-4.53
mex.ad.jp	11,522	0.07	11,130	0.08	-2.77
teamnet.net	11,061	0.07	6,328	0.04	64.17
force9.net	10,996	0.07	10,766	0.07	-4.07
fastservers.net	10,943	0.07	5,642	0.04	82.17
home.nl	10,921	0.07	10,581	0.07	-3.06
splitinfinity.net	10,892	0.07	5,634	0.04	81.57
ttd.net	10,866	0.07	10,794	0.07	-5.45
gngidc.net	10,858	0.07	6,344	0.04	60.75
tac.net	10,851	0.07	10,863	0.07	-6.18
hosting4u.net	10,738	0.07	5	0.00	201605.51
broadwing.net	10,647	0.07	8,050	0.06	24.22
cwidc.net	10,567	0.07	9,960	0.07	-0.35
iunet.it	10,553	0.07	10,334	0.07	-4.09
maxim.net	10,552	0.07	10,474	0.07	-5.38
uni2.net	10,403	0.07	10,473	0.07	-6.71
primarydns.com	10,310	0.07	10,284	0.07	-5.84
zenon.net	10,288	0.07	10,005	0.07	-3.42
atworks.co.jp	10,285	0.07	10,109	0.07	-4.44
secureserver.net	10,132	0.07	10,058	0.07	-5.39
fastweb.it	9,978	0.06	9,923	0.07	-5.56
sprint-canada.net	9,916	0.06	10,050	0.07	-7.33
oleane.net	9,767	0.06	9,562	0.07	-4.07
songnetworks.se	9,744	0.06	9,853	0.07	-7.12
phase8.net	9,703	0.06	8,666	0.06	5.16
ns.nic.mx	9,644	0.06	9,523	0.07	-4.89
trueserver.nl	9,631	0.06	8,810	0.06	2.67
hostpoint.ch	9,630	0.06	9,262	0.06	-2.35
coop.net	9,625	0.06	7,199	0.05	25.57
gandi.net	9,595	0.06	9,490	0.07	-5.04
net.edu.cn	9,558	0.06	9,432	0.06	-4.82
ns	9,534	0.06	9,425	0.06	-4.99
sdjnptt.net.cn	9,452	0.06	8,433	0.06	5.27
prima.net.ar	9,331	0.06	8,736	0.06	0.32
elassar.net	9,299	0.06	6,493	0.04	34.51
cableinet.net	9,144	0.06	8,876	0.06	-3.24
coxmail.com	9,088	0.06	8,862	0.06	-3.68
nstool.de	9,066	0.06	6,056	0.04	40.60
bit.nl	9,031	0.06	8,714	0.06	-2.66
globix.net	9,006	0.06	9,143	0.06	-7.49
aitcom.net	9,003	0.06	9,274	0.06	-8.82
forpsi.net	8,917	0.06	8,651	0.06	-3.19
iadvantage.net.hk	8,890	0.06	8,790	0.06	-5.01
pajo.com	8,846	0.06	8,820	0.06	-5.80
gatel.net	8,765	0.06	8,144	0.06	1.08
idc.ad.jp	8,752	0.06	8,986	0.06	-8.52
wxs.nl	8,751	0.06	8,416	0.06	-2.34
rtcomm.ru	8,751	0.06	8,050	0.06	2.10
svwh.net	8,696	0.06	6,763	0.05	20.77
cablecom.net	8,659	0.06	7,920	0.05	2.68
nova.net.cn	8,632	0.06	8,091	0.06	0.20
netizen.com.ar	8,619	0.06	8,585	0.06	-5.71
telekom.at	8,603	0.06	8,365	0.06	-3.41
iafrica.com	8,596	0.06	8,288	0.06	-2.59
datacenter1.com.br	8,524	0.05	8,469	0.06	-5.47
mycyberhosting.com	8,473	0.05	5,122	0.04	55.37
cybercity.dk	8,462	0.05	8,429	0.06	-5.71
westmaster.com	8,456	0.05	7,793	0.05	1.91
euroconnect.dk	8,444	0.05	8,498	0.06	-6.68
tjantik.dk	8,365	0.05	8,374	0.06	-6.18
ntdns.de	8,229	0.05	5,160	0.04	49.78
newwebsite.com	8,173	0.05	7,709	0.05	-0.43
telstra.net	8,150	0.05	7,981	0.05	-4.09
datanet.hu	8,087	0.05	5,574	0.04	36.27
server-home.net	8,080	0.05	7,844	0.05	-3.25
server260.com	8,022	0.05	7,385	0.05	2.02
newedgenetworks.com	8,016	0.05	7,696	0.05	-2.17
jay.net	8,009	0.05	7,768	0.05	-3.16
completel.fr	7,970	0.05	7,544	0.05	-0.78
active24.cz	7,959	0.05	7,410	0.05	0.88
datacomm.ch	7,952	0.05	8,085	0.06	-7.62
interia.pl	7,951	0.05	5,107	0.03	46.22
newnet.co.uk	7,947	0.05	7,735	0.05	-3.50
seeweb.it	7,906	0.05	7,682	0.05	-3.34
ns4.de	7,877	0.05	7,760	0.05	-4.66
nl.net	7,827	0.05	7,965	0.05	-7.71
speedbone.de	7,728	0.05	4,378	0.03	65.79
is.co.za	7,725	0.05	7,667	0.05	-5.37
propagation.net	7,718	0.05	11,492	0.08	-36.92
bt.com	7,694	0.05	7,786	0.05	-7.19
fastdns.de	7,667	0.05	6,738	0.05	6.87

* An ISP is said to host a server if its name servers have control over the block of IP addresses that the server is in. Since a large ISP might delegate subnets to a smaller one, a single web server may be counted several times towards an ISP and its upstream providers.