Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 56097093 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	Mar 2011 Count*	Mar 2011 %	Feb 2011 Count*	Feb 2011 %	Growth %
theplanet.com	2,431,164	4.33	2,052,216	3.75	15.68
schlund.de	1,727,884	3.08	1,691,185	3.09	-0.23
y.dns.jp	1,548,779	2.76	1,531,452	2.80	-1.25
secureserver.net	1,419,589	2.53	1,399,194	2.55	-0.93
ovh.net	1,128,679	2.01	1,059,348	1.93	4.04
global-datacenter.com	1,057,111	1.88	984,332	1.80	4.87
your-server.de	952,687	1.70	920,681	1.68	1.04
a.in-addr.cn	833,057	1.49	828,550	1.51	-1.82
sakura.ad.jp	724,587	1.29	711,339	1.30	-0.53
rackspace.com	677,762	1.21	666,051	1.22	-0.64
lacnic.net	651,067	1.16	647,601	1.18	-1.83
bluehost.com	574,988	1.02	555,903	1.01	1.00
dreamhost.com	514,469	0.92	503,918	0.92	-0.31
dns.kr	450,107	0.80	434,490	0.79	1.16
a.dns.br	414,090	0.74	416,725	0.76	-2.97
yourhostingaccount.com	403,373	0.72	408,609	0.75	-3.60
ntt.net	354,636	0.63	350,196	0.64	-1.11
peer1.net	350,265	0.62	332,211	0.61	2.95
interq.or.jp	346,088	0.62	356,729	0.65	-5.27
twnic.net	340,771	0.61	315,450	0.58	5.49
guangzhou.gd.cn	340,545	0.61	322,297	0.59	3.18
leaseweb.nl	337,829	0.60	311,666	0.57	5.84
zjnbptt.net.cn	335,010	0.60	318,222	0.58	2.80
ns	330,389	0.59	335,056	0.61	-3.71
pnap.net	328,093	0.58	314,190	0.57	1.97
proxad.net	307,571	0.55	300,054	0.55	0.09
technorail.com	297,644	0.53	294,646	0.54	-1.36
hosteurope.de	283,792	0.51	275,213	0.50	0.69
amazon.com	279,336	0.50	264,233	0.48	3.23
level3.net	263,195	0.47	264,936	0.48	-2.99
mediatemple.net	260,404	0.46	250,874	0.46	1.36
localhost	256,499	0.46	244,959	0.45	2.25
b-one-dns.net	229,473	0.41	223,242	0.41	0.37
sta.net.cn	227,091	0.40	238,820	0.44	-7.15
cogentco.com	222,065	0.40	235,997	0.43	-8.12
namespace4you.de	213,890	0.38	209,578	0.38	-0.34
sourcedns.com	213,134	0.38	208,220	0.38	-0.05
nmc1.ptt.js.cn	198,170	0.35	206,127	0.38	-6.12
iweb-hosting.com	196,039	0.35	207,432	0.38	-7.72
dns.fz.fj.cn	190,429	0.34	205,437	0.38	-9.49
xlink.net	189,599	0.34	137,149	0.25	34.99
kasserver.com	188,797	0.34	182,285	0.33	1.14
intergenia.de	185,720	0.33	177,604	0.32	2.11
softlayer.com	183,388	0.33	146,698	0.27	22.07
gtei.net	180,671	0.32	183,342	0.33	-3.78
home.pl	176,281	0.31	169,880	0.31	1.33
yandex.ru	176,106	0.31	167,080	0.31	2.92
pri-dns.de	173,813	0.31	169,083	0.31	0.38
netart.pl	166,679	0.30	155,453	0.28	4.70
burst.net	165,684	0.30	161,558	0.29	0.14
savvis.net	163,803	0.29	170,542	0.31	-6.21
geodns.net	162,489	0.29	160,702	0.29	-1.27
masterhost.ru	160,246	0.29	157,865	0.29	-0.88
fasthosts.net.uk	147,222	0.26	148,994	0.27	-3.51
yahoo.com	146,958	0.26	116,141	0.21	23.56
gnax.net	140,786	0.25	149,009	0.27	-7.74
lunarpages.com	136,676	0.24	135,512	0.25	-1.51
rz-ip.net	134,953	0.24	133,704	0.24	-1.44
secure.net	134,042	0.24	133,334	0.24	-1.83
iprevolution.co.jp	132,829	0.24	136,920	0.25	-5.27
phatservers.com	131,805	0.23	120,958	0.22	6.40
dion.ne.jp	131,035	0.23	131,778	0.24	-2.90
dimenoc.com	129,321	0.23	125,251	0.23	0.82
usen.ad.jp	125,031	0.22	126,077	0.23	-3.16
gldn.net	125,007	0.22	99,406	0.18	22.80
mainnameserver.com	124,537	0.22	119,843	0.22	1.47
carpathiahost.net	121,785	0.22	122,076	0.22	-2.59
bta.net.cn	120,196	0.21	128,496	0.23	-8.66
uu.net	118,392	0.21	118,105	0.22	-2.12
cncnet.net	117,919	0.21	110,815	0.20	3.91
fhe3rz.net	117,453	0.21	108,180	0.20	6.02
ns01.idc.jp	112,525	0.20	109,851	0.20	0.02
servint.com	112,271	0.20	106,880	0.20	2.57
singlehop.net	110,736	0.20	98,694	0.18	9.56
lnhi.net	109,691	0.20	107,721	0.20	-0.57
pwebtech.com	107,584	0.19	103,215	0.19	1.78
ocn.ad.jp	106,429	0.19	104,647	0.19	-0.69
msft.net	106,147	0.19	116,156	0.21	-10.77
jump.ro	104,693	0.19	95,438	0.17	7.12
pair.com	104,643	0.19	104,225	0.19	-1.96
net.ru	104,413	0.19	105,240	0.19	-3.12
silkroadtechnologies.com	104,274	0.19	104,831	0.19	-2.87
sparqnet.net	102,908	0.18	104,767	0.19	-4.09
superhosting.cz	101,661	0.18	108,001	0.20	-8.09
he.net	100,914	0.18	95,041	0.17	3.68
relax.ru	100,289	0.18	75,095	0.14	30.41
cais.com	98,581	0.18	113,711	0.21	-15.35
att.net	95,896	0.17	103,095	0.19	-9.17
datadragon.net	95,493	0.17	83,273	0.15	11.98
kornet.net	93,495	0.17	86,890	0.16	5.07
qwest.net	90,768	0.16	90,583	0.17	-2.15
untd.com	90,194	0.16	96,268	0.18	-8.51
colt.net	89,771	0.16	86,875	0.16	0.90
servercentral.net	88,073	0.16	82,888	0.15	3.76
locaweb.com.br	87,449	0.16	84,791	0.15	0.71
netfirms.com	87,413	0.16	85,005	0.16	0.41
westmaster.com	87,219	0.16	78,834	0.14	8.03
gblx.net	87,180	0.16	71,099	0.13	19.73
tfn.net.tw	86,666	0.15	69,577	0.13	21.63
inetbone.net	86,548	0.15	89,781	0.16	-5.87
afrinic.net	85,856	0.15	85,352	0.16	-1.78
hbtele.com	85,152	0.15	62,553	0.11	32.92
slicehost.net	84,630	0.15	87,098	0.16	-5.12
rt-comm.ru	83,362	0.15	73,730	0.13	10.40
ripn.net	79,949	0.14	77,325	0.14	0.96
tele.dk	78,049	0.14	78,442	0.14	-2.84
twtelecom.net	78,014	0.14	92,927	0.17	-18.02
servidoresdns.net	77,830	0.14	76,655	0.14	-0.86
sphere.ad.jp	77,325	0.14	76,851	0.14	-1.75
hinet.net	76,595	0.14	75,165	0.14	-0.50
nethost.cz	76,240	0.14	73,199	0.13	1.70
aspadmin.com	75,984	0.14	67,573	0.12	9.80
layeredtech.com	75,768	0.14	73,676	0.13	0.42
meganameservers.com	75,388	0.13	68,595	0.13	7.32
xo.com	75,095	0.13	73,373	0.13	-0.06
dnspartner.de	74,918	0.13	73,929	0.13	-1.05
flexwebhosting.nl	74,680	0.13	71,057	0.13	2.63
interware.hu	74,286	0.13	74,949	0.14	-3.22
t-online.hu	73,951	0.13	71,287	0.13	1.30
drcnet.com.cn	73,717	0.13	71,301	0.13	0.96
xs4all.nl	73,444	0.13	71,884	0.13	-0.23
dtag.de	73,321	0.13	68,838	0.13	4.01
netdirekt.de	72,993	0.13	98,188	0.18	-27.41
fastservers.net	71,570	0.13	71,120	0.13	-1.73
rr.com	70,402	0.13	67,737	0.12	1.49
uol.com.br	70,320	0.13	81,689	0.15	-15.94
kei.pl	70,239	0.13	68,687	0.13	-0.15
sdjnptt.net.cn	69,788	0.12	69,090	0.13	-1.37
webcontrolcenter.com	69,691	0.12	69,458	0.13	-2.03
linode.com	69,099	0.12	62,974	0.11	7.14
skyrock.net	68,576	0.12	59,087	0.11	13.33
intercom.com.cn	68,406	0.12	70,313	0.13	-5.00
ee.net	68,401	0.12	61,435	0.11	8.72
hc.ru	68,351	0.12	75,612	0.14	-11.73
rain.fr	66,598	0.12	58,756	0.11	10.68
nocdirect.com	65,162	0.12	64,633	0.12	-1.55
hananet.net	65,149	0.12	62,444	0.11	1.88
google.com	65,100	0.12	66,256	0.12	-4.06
vpls.net	64,878	0.12	58,364	0.11	8.55
casablanca.cz	64,845	0.12	60,165	0.11	5.24
comcastbusiness.net	64,387	0.11	60,304	0.11	4.26
gyron.net	63,978	0.11	61,102	0.11	2.24
maxim.net	62,791	0.11	60,905	0.11	0.67
ch-meta.net	62,453	0.11	61,191	0.11	-0.34
sc163.net	61,736	0.11	47,460	0.09	27.02
servage.net	61,537	0.11	61,193	0.11	-1.80
dynamicweb.net	61,037	0.11	56,604	0.10	5.29
namedserver.net	60,637	0.11	59,424	0.11	-0.36
forpsi.net	60,612	0.11	58,699	0.11	0.83
hbwhptt.net.cn	59,884	0.11	56,761	0.10	3.02
ctnt.com.cn	59,437	0.11	59,709	0.11	-2.80
colo4dallas.net	59,395	0.11	58,072	0.11	-0.13
fdcservers.net	59,018	0.11	58,046	0.11	-0.72
uk2.net	58,853	0.10	57,535	0.11	-0.12
ucoz.net	58,587	0.10	55,702	0.10	2.70
midphase.com	58,234	0.10	50,630	0.09	12.31
elinuxservers.com	56,737	0.10	56,015	0.10	-1.09
inode.at	56,624	0.10	56,706	0.10	-2.49
spaceweb.ru	56,580	0.10	54,389	0.10	1.58
sprintlink.net	56,494	0.10	55,291	0.10	-0.23
cysonet.com	56,472	0.10	54,128	0.10	1.88
marchex.com	55,860	0.10	54,368	0.10	0.33
tpt.net.cn	55,731	0.10	43,722	0.08	24.47
ns1.xserver.jp	54,256	0.10	51,500	0.09	2.87
wiredtree.com	53,279	0.09	53,814	0.10	-3.32
nic.ru	52,646	0.09	49,998	0.09	2.82
proserve.nl	51,922	0.09	46,113	0.08	9.95
donhost.co.uk	51,851	0.09	51,349	0.09	-1.40
inmotionhosting.com	51,517	0.09	48,667	0.09	3.37
tpnet.pl	50,073	0.09	54,614	0.10	-10.47
rapidswitch.com	50,056	0.09	48,930	0.09	-0.11
ezzi.net	49,474	0.09	45,206	0.08	6.87
bezeqint.net	49,224	0.09	46,697	0.09	2.93
take2hosting.com	49,139	0.09	41,611	0.08	15.31
telia.com	49,079	0.09	39,768	0.07	20.51
server260.com	48,527	0.09	47,978	0.09	-1.24
gzidc.com	48,189	0.09	47,372	0.09	-0.67
demandmedia.com	47,907	0.09	49,687	0.09	-5.85
trellian.com	47,656	0.08	51,970	0.09	-10.46
viawest.net	47,625	0.08	62,408	0.11	-25.48
datapipe.net	47,592	0.08	47,258	0.09	-1.66
hesjptt.net.cn	46,953	0.08	42,306	0.08	8.37
pcextreme.nl	46,869	0.08	45,044	0.08	1.60
bt.net	46,807	0.08	46,507	0.08	-1.72
singlehop.com	46,660	0.08	45,551	0.08	0.02
bhpr.net	46,404	0.08	31,462	0.06	44.02
deninet.hu	46,243	0.08	49,682	0.09	-9.11
drive.ne.jp	45,992	0.08	42,435	0.08	5.83
calpop.com	45,830	0.08	41,317	0.08	8.31
as29550.net	45,801	0.08	44,899	0.08	-0.39
hoster.ru	45,262	0.08	53,169	0.10	-16.87
eukhost.com	45,145	0.08	44,347	0.08	-0.60
in2net.com	44,872	0.08	47,981	0.09	-8.68
sgns.net	44,677	0.08	43,090	0.08	1.24
kidc.net	44,660	0.08	45,831	0.08	-4.85
surf-town.net	44,455	0.08	43,148	0.08	0.60
hazzptt.net.cn	43,887	0.08	42,668	0.08	0.44
isprime.com	43,719	0.08	41,198	0.08	3.62
interlink.or.jp	43,663	0.08	44,329	0.08	-3.82
advancedhosters.com	43,492	0.08	41,317	0.08	2.79
netbenefit.co.uk	43,421	0.08	42,503	0.08	-0.24
webnx.com	43,277	0.08	41,396	0.08	2.08
transip.net	42,974	0.08	42,395	0.08	-1.02
sivit.org	42,936	0.08	51,935	0.09	-19.27
udagdns.net	42,862	0.08	40,068	0.07	4.46
infomaniak.ch	42,794	0.08	43,354	0.08	-3.61
mastak.ru	42,003	0.07	40,826	0.07	0.46
ipipe.net	41,604	0.07	30,450	0.06	33.42
cattelecom.com	41,293	0.07	40,884	0.07	-1.38
conepuppy.com	41,278	0.07	40,016	0.07	0.73
iomart.com	40,425	0.07	39,961	0.07	-1.22
seeweb.it	40,320	0.07	36,077	0.07	9.13
dn-s.nl	40,257	0.07	45,769	0.08	-14.11
myhostcenter.com	40,129	0.07	36,476	0.07	7.43
ecotel.net	40,128	0.07	39,103	0.07	0.21
hostpoint.ch	40,107	0.07	39,249	0.07	-0.22
acens.net	40,069	0.07	39,564	0.07	-1.11
myregisteredsite.com	39,999	0.07	49,180	0.09	-20.58
bell.ca	39,929	0.07	39,076	0.07	-0.22
ns-px.online.sh.cn	39,900	0.07	31,539	0.06	23.53
keyweb.de	39,613	0.07	39,455	0.07	-1.96
liquidweb.com	39,562	0.07	40,156	0.07	-3.80
lambdanet.net	39,171	0.07	38,801	0.07	-1.42
west-datacenter.net	38,998	0.07	38,860	0.07	-2.01
servernap.com	38,959	0.07	37,897	0.07	0.38
it.net	38,876	0.07	36,779	0.07	3.21
live-servers.net	38,796	0.07	37,731	0.07	0.40
webazilla.com	38,624	0.07	37,338	0.07	1.01
ns1	38,485	0.07	37,467	0.07	0.30
ispsystem.net	38,350	0.07	37,586	0.07	-0.37
onet.pl	38,329	0.07	24,419	0.04	53.27
datanet.hu	38,308	0.07	46,411	0.08	-19.40
limestonenetworks.com	38,003	0.07	36,489	0.07	1.70
antagus.de	37,723	0.07	36,249	0.07	1.62
ipx-server.de	37,543	0.07	36,861	0.07	-0.55
cnc-idc.net	37,522	0.07	30,858	0.06	18.73
tucows.com	37,244	0.07	43,338	0.08	-16.08
loopia.se	36,771	0.07	37,515	0.07	-4.29
trueserver.nl	36,506	0.07	36,911	0.07	-3.42
cpi.ad.jp	36,247	0.06	35,075	0.06	0.91
grafix-is.com	36,149	0.06	32,192	0.06	9.65
nac.net	35,817	0.06	26,573	0.05	31.62
infobox.org	35,385	0.06	33,268	0.06	3.86
combell.net	35,063	0.06	34,570	0.06	-0.96
hix.nl	34,843	0.06	33,873	0.06	0.44
cnc-idc.com	34,831	0.06	34,128	0.06	-0.34
sinnet.com.cn	34,721	0.06	26,220	0.05	29.31
interbusiness.it	34,056	0.06	33,629	0.06	-1.11
majordomo.ru	34,020	0.06	33,236	0.06	-0.05
activeisp.com	33,943	0.06	33,399	0.06	-0.76

* 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.

Beginning with the February 2006 data set on which the March 1st, 2006 reports are based, a new algorithm was implemented for determining which webservers are assigned to which ISP. This new algorithm catches a significant number of servers which previously were unable to be assigned to an ISP.