Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 54777215 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	Feb 2011 Count*	Feb 2011 %	Jan 2011 Count*	Jan 2011 %	Growth %
theplanet.com	2,052,216	3.75	2,012,784	3.73	0.43
schlund.de	1,691,185	3.09	1,685,916	3.12	-1.20
y.dns.jp	1,531,452	2.80	1,531,823	2.84	-1.53
secureserver.net	1,399,194	2.55	1,351,902	2.51	1.94
ovh.net	1,059,348	1.93	1,036,414	1.92	0.68
global-datacenter.com	984,332	1.80	891,636	1.65	8.74
your-server.de	920,681	1.68	893,413	1.66	1.50
a.in-addr.cn	828,550	1.51	813,849	1.51	0.27
sakura.ad.jp	711,339	1.30	699,952	1.30	0.10
rackspace.com	666,051	1.22	654,580	1.21	0.22
lacnic.net	647,601	1.18	622,302	1.15	2.50
bluehost.com	555,903	1.01	534,457	0.99	2.45
dreamhost.com	503,918	0.92	491,674	0.91	0.95
dns.kr	434,490	0.79	441,593	0.82	-3.09
a.dns.br	416,725	0.76	396,358	0.73	3.56
yourhostingaccount.com	408,609	0.75	400,404	0.74	0.51
interq.or.jp	356,729	0.65	336,287	0.62	4.48
ntt.net	350,196	0.64	357,469	0.66	-3.51
ev1servers.net	337,794	0.62	330,124	0.61	0.78
ns	335,056	0.61	326,639	0.61	1.03
peer1.net	332,211	0.61	322,379	0.60	1.50
guangzhou.gd.cn	322,297	0.59	304,622	0.56	4.21
zjnbptt.net.cn	318,222	0.58	318,792	0.59	-1.68
twnic.net	315,450	0.58	312,595	0.58	-0.60
pnap.net	314,190	0.57	309,258	0.57	0.07
leaseweb.nl	311,666	0.57	292,797	0.54	4.84
proxad.net	300,054	0.55	288,564	0.53	2.42
technorail.com	294,646	0.54	298,619	0.55	-2.81
hosteurope.de	275,213	0.50	263,733	0.49	2.78
level3.net	264,936	0.48	244,478	0.45	6.74
amazon.com	264,233	0.48	229,182	0.42	13.56
mediatemple.net	250,874	0.46	243,579	0.45	1.45
localhost	244,959	0.45	239,050	0.44	0.93
sta.net.cn	238,820	0.44	218,900	0.41	7.46
cogentco.com	235,997	0.43	239,474	0.44	-2.93
b-one-dns.net	223,242	0.41	214,601	0.40	2.46
namespace4you.de	209,578	0.38	204,544	0.38	0.92
sourcedns.com	208,220	0.38	203,048	0.38	1.00
iweb-hosting.com	207,432	0.38	201,807	0.37	1.24
nmc1.ptt.js.cn	206,127	0.38	213,521	0.40	-4.92
dns.fz.fj.cn	205,437	0.38	186,336	0.35	8.59
gtei.net	183,342	0.33	162,462	0.30	11.15
kasserver.com	182,285	0.33	178,802	0.33	0.41
intergenia.de	177,604	0.32	174,278	0.32	0.38
savvis.net	170,542	0.31	165,877	0.31	1.27
home.pl	169,880	0.31	163,382	0.30	2.41
pri-dns.de	169,083	0.31	169,658	0.31	-1.84
yandex.ru	167,080	0.31	171,606	0.32	-4.10
burst.net	161,558	0.29	167,849	0.31	-5.20
geodns.net	160,702	0.29	155,940	0.29	1.50
masterhost.ru	157,865	0.29	163,845	0.30	-5.10
netart.pl	155,453	0.28	158,439	0.29	-3.36
gnax.net	149,009	0.27	150,177	0.28	-2.27
fasthosts.net.uk	148,994	0.27	146,676	0.27	0.05
softlayer.com	146,698	0.27	113,504	0.21	27.30
xlink.net	137,149	0.25	186,861	0.35	-27.71
iprevolution.co.jp	136,920	0.25	135,851	0.25	-0.73
lunarpages.com	135,512	0.25	134,027	0.25	-0.41
rz-ip.net	133,704	0.24	133,032	0.25	-1.01
secure.net	133,334	0.24	133,282	0.25	-1.47
dion.ne.jp	131,778	0.24	128,863	0.24	0.72
bta.net.cn	128,496	0.23	113,085	0.21	11.92
usen.ad.jp	126,077	0.23	152,647	0.28	-18.65
dimenoc.com	125,251	0.23	121,771	0.23	1.31
carpathiahost.net	122,076	0.22	113,446	0.21	5.99
phatservers.com	120,958	0.22	112,734	0.21	5.68
mainnameserver.com	119,843	0.22	115,896	0.21	1.85
uu.net	118,105	0.22	116,664	0.22	-0.29
msft.net	116,156	0.21	94,574	0.18	20.97
yahoo.com	116,141	0.21	130,372	0.24	-12.26
cais.com	113,711	0.21	113,559	0.21	-1.37
cncnet.net	110,815	0.20	104,259	0.19	4.69
ns01.idc.jp	109,851	0.20	108,971	0.20	-0.71
fhe3rz.net	108,180	0.20	105,199	0.19	1.29
superhosting.cz	108,001	0.20	97,099	0.18	9.55
lnhi.net	107,721	0.20	106,107	0.20	-0.01
servint.com	106,880	0.20	102,351	0.19	2.85
net.ru	105,240	0.19	103,741	0.19	-0.08
silkroadtechnologies.com	104,831	0.19	102,962	0.19	0.28
sparqnet.net	104,767	0.19	97,464	0.18	5.88
ocn.ad.jp	104,647	0.19	102,541	0.19	0.52
pair.com	104,225	0.19	103,689	0.19	-1.00
pwebtech.com	103,215	0.19	102,392	0.19	-0.71
att.net	103,095	0.19	106,475	0.20	-4.63
gldn.net	99,406	0.18	105,687	0.20	-7.36
singlehop.net	98,694	0.18	89,821	0.17	8.23
netdirekt.de	98,188	0.18	0	0.00	0.00
untd.com	96,268	0.18	104,204	0.19	-9.01
jump.ro	95,438	0.17	98,888	0.18	-4.94
he.net	95,041	0.17	100,778	0.19	-7.11
twtelecom.net	92,927	0.17	74,359	0.14	23.09
qwest.net	90,583	0.17	85,432	0.16	4.43
inetbone.net	89,781	0.16	88,319	0.16	0.13
slicehost.net	87,098	0.16	78,372	0.15	9.46
kornet.net	86,890	0.16	94,219	0.17	-9.17
colt.net	86,875	0.16	84,184	0.16	1.64
afrinic.net	85,352	0.16	83,940	0.16	0.15
netfirms.com	85,005	0.16	83,373	0.15	0.42
locaweb.com.br	84,791	0.15	82,096	0.15	1.73
datadragon.net	83,273	0.15	96,624	0.18	-15.11
servercentral.net	82,888	0.15	87,259	0.16	-6.44
uol.com.br	81,689	0.15	59,672	0.11	34.84
ev1.net	79,506	0.15	81,831	0.15	-4.30
westmaster.com	78,834	0.14	93,329	0.17	-16.80
tele.dk	78,442	0.14	81,490	0.15	-5.19
ripn.net	77,325	0.14	76,380	0.14	-0.29
sphere.ad.jp	76,851	0.14	75,317	0.14	0.50
servidoresdns.net	76,655	0.14	74,594	0.14	1.22
hc.ru	75,612	0.14	73,573	0.14	1.23
hinet.net	75,165	0.14	73,080	0.14	1.31
relax.ru	75,095	0.14	81,315	0.15	-9.04
interware.hu	74,949	0.14	72,821	0.13	1.37
dnspartner.de	73,929	0.13	67,534	0.13	7.82
rt-comm.ru	73,730	0.13	82,764	0.15	-12.26
layeredtech.com	73,676	0.13	72,905	0.14	-0.46
xo.com	73,373	0.13	84,050	0.16	-14.02
nethost.cz	73,199	0.13	70,275	0.13	2.59
xs4all.nl	71,884	0.13	71,673	0.13	-1.21
drcnet.com.cn	71,301	0.13	60,630	0.11	15.83
t-online.hu	71,287	0.13	63,649	0.12	10.32
fastservers.net	71,120	0.13	69,343	0.13	1.02
gblx.net	71,099	0.13	49,258	0.09	42.17
flexwebhosting.nl	71,057	0.13	16,758	0.03	317.64
intercom.com.cn	70,313	0.13	63,962	0.12	8.28
tfn.net.tw	69,577	0.13	75,005	0.14	-8.63
webcontrolcenter.com	69,458	0.13	69,319	0.13	-1.31
sdjnptt.net.cn	69,090	0.13	67,488	0.13	0.83
dtag.de	68,838	0.13	63,438	0.12	6.88
kei.pl	68,687	0.13	67,413	0.12	0.36
meganameservers.com	68,595	0.13	78,241	0.15	-13.65
rr.com	67,737	0.12	67,584	0.13	-1.28
aspadmin.com	67,573	0.12	74,114	0.14	-10.20
google.com	66,256	0.12	59,054	0.11	10.51
nocdirect.com	64,633	0.12	65,228	0.12	-2.40
linode.com	62,974	0.11	58,387	0.11	6.23
hbtele.com	62,553	0.11	53,040	0.10	16.16
hananet.net	62,444	0.11	56,053	0.10	9.73
viawest.net	62,408	0.11	40,187	0.07	52.96
ee.net	61,435	0.11	58,602	0.11	3.26
servage.net	61,193	0.11	60,173	0.11	0.17
ch-meta.net	61,191	0.11	60,286	0.11	-0.03
gyron.net	61,102	0.11	58,102	0.11	3.58
maxim.net	60,905	0.11	67,296	0.12	-10.86
comcastbusiness.net	60,304	0.11	58,563	0.11	1.42
casablanca.cz	60,165	0.11	61,624	0.11	-3.84
ctnt.com.cn	59,709	0.11	61,622	0.11	-4.56
namedserver.net	59,424	0.11	58,485	0.11	0.08
skyrock.net	59,087	0.11	50,652	0.09	14.90
rain.fr	58,756	0.11	64,208	0.12	-9.87
forpsi.net	58,699	0.11	57,343	0.11	0.82
vpls.net	58,364	0.11	52,592	0.10	9.31
colo4dallas.net	58,072	0.11	57,846	0.11	-1.12
fdcservers.net	58,046	0.11	54,042	0.10	5.79
uk2.net	57,535	0.11	56,289	0.10	0.68
hbwhptt.net.cn	56,761	0.10	55,322	0.10	1.06
inode.at	56,706	0.10	56,322	0.10	-0.83
dynamicweb.net	56,604	0.10	54,768	0.10	1.80
elinuxservers.com	56,015	0.10	53,949	0.10	2.27
ucoz.net	55,702	0.10	53,367	0.10	2.81
sprintlink.net	55,291	0.10	56,726	0.11	-4.00
tpnet.pl	54,614	0.10	64,417	0.12	-16.49
spaceweb.ru	54,389	0.10	53,267	0.10	0.57
marchex.com	54,368	0.10	52,698	0.10	1.62
cysonet.com	54,128	0.10	53,069	0.10	0.46
wiredtree.com	53,814	0.10	53,941	0.10	-1.74
hoster.ru	53,169	0.10	41,286	0.08	26.84
trellian.com	51,970	0.09	55,129	0.10	-7.15
sivit.org	51,935	0.09	58,023	0.11	-11.84
ns1.xserver.jp	51,500	0.09	46,842	0.09	8.29
donhost.co.uk	51,349	0.09	49,497	0.09	2.18
midphase.com	50,630	0.09	55,674	0.10	-10.43
nic.ru	49,998	0.09	48,617	0.09	1.29
demandmedia.com	49,687	0.09	50,676	0.09	-3.43
deninet.hu	49,682	0.09	48,501	0.09	0.89
myregisteredsite.com	49,180	0.09	45,058	0.08	7.51
rapidswitch.com	48,930	0.09	48,047	0.09	0.31
inmotionhosting.com	48,667	0.09	44,982	0.08	6.56
in2net.com	47,981	0.09	48,000	0.09	-1.54
server260.com	47,978	0.09	47,417	0.09	-0.34
sc163.net	47,460	0.09	53,522	0.10	-12.66
oversee.net	47,409	0.09	46,823	0.09	-0.27
gzidc.com	47,372	0.09	47,055	0.09	-0.84
datapipe.net	47,258	0.09	47,038	0.09	-1.04
bezeqint.net	46,697	0.09	44,089	0.08	4.32
bt.net	46,507	0.08	48,018	0.09	-4.60
datanet.hu	46,411	0.08	45,527	0.08	0.41
proserve.nl	46,113	0.08	51,008	0.09	-10.96
kidc.net	45,831	0.08	43,783	0.08	3.10
dn-s.nl	45,769	0.08	37,491	0.07	20.24
singlehop.com	45,551	0.08	44,930	0.08	-0.14
ezzi.net	45,206	0.08	39,453	0.07	12.86
pcextreme.nl	45,044	0.08	44,030	0.08	0.76
as29550.net	44,899	0.08	41,463	0.08	6.66
eukhost.com	44,347	0.08	44,206	0.08	-1.19
interlink.or.jp	44,329	0.08	43,716	0.08	-0.12
tpt.net.cn	43,722	0.08	42,495	0.08	1.34
infomaniak.ch	43,354	0.08	42,415	0.08	0.68
tucows.com	43,338	0.08	32,214	0.06	32.51
surf-town.net	43,148	0.08	42,986	0.08	-1.13
sgns.net	43,090	0.08	39,983	0.07	6.15
hazzptt.net.cn	42,668	0.08	41,559	0.08	1.12
netbenefit.co.uk	42,503	0.08	40,672	0.08	2.93
drive.ne.jp	42,435	0.08	50,521	0.09	-17.27
transip.net	42,395	0.08	40,238	0.07	3.78
hesjptt.net.cn	42,306	0.08	38,454	0.07	8.36
take2hosting.com	41,611	0.08	38,965	0.07	5.18
webnx.com	41,396	0.08	31,677	0.06	28.72
calpop.com	41,317	0.08	37,420	0.07	8.75
advancedhosters.com	41,317	0.08	39,282	0.07	3.60
isprime.com	41,198	0.08	50,955	0.09	-20.36
cattelecom.com	40,884	0.07	38,788	0.07	3.82
mastak.ru	40,826	0.07	39,399	0.07	2.06
nyi.net	40,387	0.07	10,916	0.02	264.41
liquidweb.com	40,156	0.07	41,784	0.08	-5.34
udagdns.net	40,068	0.07	35,046	0.06	12.61
conepuppy.com	40,016	0.07	37,748	0.07	4.41
iomart.com	39,961	0.07	39,456	0.07	-0.24
telia.com	39,768	0.07	45,923	0.09	-14.71
acens.net	39,564	0.07	38,994	0.07	-0.06
keyweb.de	39,455	0.07	40,790	0.08	-4.73
hostpoint.ch	39,249	0.07	37,730	0.07	2.46
ecotel.net	39,103	0.07	30,397	0.06	26.71
bell.ca	39,076	0.07	38,419	0.07	0.18
west-datacenter.net	38,860	0.07	38,482	0.07	-0.54
lambdanet.net	38,801	0.07	38,321	0.07	-0.27
hosteurope.com	38,450	0.07	28,782	0.05	31.58
volia.com	38,076	0.07	36,681	0.07	2.24
servernap.com	37,897	0.07	36,647	0.07	1.86
live-servers.net	37,731	0.07	37,616	0.07	-1.20
ispsystem.net	37,586	0.07	35,329	0.07	4.79
loopia.se	37,515	0.07	36,819	0.07	0.36
ns1	37,467	0.07	35,163	0.07	4.95
webazilla.com	37,338	0.07	36,330	0.07	1.23
trueserver.nl	36,911	0.07	36,369	0.07	-0.04
ipx-server.de	36,861	0.07	36,282	0.07	0.07
it.net	36,779	0.07	34,243	0.06	5.79
limestonenetworks.com	36,489	0.07	34,882	0.06	3.03
integraonline.com	36,487	0.07	47,326	0.09	-24.06
myhostcenter.com	36,476	0.07	34,274	0.06	4.82
antagus.de	36,249	0.07	35,395	0.07	0.87
seeweb.it	36,077	0.07	35,309	0.07	0.64
zjnetcom.com	35,241	0.06	27,602	0.05	25.75
cpi.ad.jp	35,075	0.06	34,164	0.06	1.12
xl-internetservices.com	34,797	0.06	31,925	0.06	7.36
combell.net	34,570	0.06	33,588	0.06	1.38
tailormadeservers.com	34,148	0.06	30,480	0.06	10.35
cnc-idc.com	34,128	0.06	34,683	0.06	-3.08
ntdns.de	33,950	0.06	32,985	0.06	1.38
attractsoft.com	33,896	0.06	37,076	0.07	-9.95
hix.nl	33,873	0.06	33,084	0.06	0.84

* 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.