Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 62772126 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	Jan 2012 Count*	Jan 2012 %	Dec 2011 Count*	Dec 2011 %	Growth %
theplanet.com	2,088,465	3.33	2,091,989	3.38	-1.56
schlund.de	1,863,887	2.97	1,844,756	2.98	-0.37
networklayer.com	1,799,637	2.87	1,777,014	2.87	-0.14
secureserver.net	1,689,352	2.69	1,662,560	2.69	0.19
y.dns.jp	1,531,003	2.44	1,505,300	2.43	0.29
ovh.net	1,339,323	2.13	1,302,819	2.10	1.37
your-server.de	1,231,052	1.96	1,218,587	1.97	-0.39
a.in-addr.cn	943,790	1.50	958,596	1.55	-2.92
rackspace.com	826,330	1.32	825,930	1.33	-1.35
sakura.ad.jp	818,079	1.30	767,921	1.24	5.05
global-datacenter.com	803,229	1.28	848,945	1.37	-6.71
lacnic.net	736,573	1.17	717,693	1.16	1.20
bluehost.com	700,668	1.12	690,480	1.12	0.06
softlayer.com	673,550	1.07	664,396	1.07	-0.04
dreamhost.com	569,481	0.91	558,869	0.90	0.48
yourhostingaccount.com	516,467	0.82	508,596	0.82	0.13
amazon.com	485,107	0.77	464,464	0.75	2.99
dns.kr	476,827	0.76	488,745	0.79	-3.80
peer1.net	471,639	0.75	452,744	0.73	2.72
a.dns.br	464,803	0.74	449,797	0.73	1.89
1and1.com	437,296	0.70	435,600	0.70	-1.01
twnic.net	425,154	0.68	421,152	0.68	-0.46
ntt.net	414,373	0.66	404,333	0.65	1.05
leaseweb.nl	399,748	0.64	392,117	0.63	0.52
ns	377,738	0.60	392,968	0.63	-5.22
zjnbptt.net.cn	375,710	0.60	362,935	0.59	2.08
guangzhou.gd.cn	352,415	0.56	368,181	0.59	-5.62
hosteurope.de	336,810	0.54	330,870	0.53	0.37
proxad.net	333,571	0.53	333,242	0.54	-1.30
technorail.com	329,588	0.53	323,317	0.52	0.52
interq.or.jp	309,055	0.49	315,521	0.51	-3.42
pnap.net	300,886	0.48	329,462	0.53	-9.95
mediatemple.net	298,960	0.48	293,688	0.47	0.37
localhost	275,874	0.44	266,593	0.43	2.04
level3.net	266,572	0.42	255,837	0.41	2.74
singlehop.net	258,035	0.41	246,493	0.40	3.22
b-one-dns.net	255,929	0.41	262,158	0.42	-3.74
sourcedns.com	249,599	0.40	243,737	0.39	0.98
intergenia.de	248,380	0.40	238,593	0.39	2.65
xlink.net	240,714	0.38	205,027	0.33	15.77
iweb-hosting.com	239,281	0.38	242,565	0.39	-2.73
sta.net.cn	239,233	0.38	245,416	0.40	-3.88
namespace4you.de	239,124	0.38	234,384	0.38	0.60
cogentco.com	223,672	0.36	226,312	0.37	-2.55
dns.fz.fj.cn	218,257	0.35	209,347	0.34	2.80
kasserver.com	218,187	0.35	214,558	0.35	0.27
home.pl	209,194	0.33	204,527	0.33	0.85
nmc1.ptt.js.cn	199,305	0.32	192,549	0.31	2.06
dimenoc.com	190,176	0.30	186,637	0.30	0.47
servercentral.net	186,987	0.30	163,058	0.26	13.08
yandex.ru	184,874	0.29	180,629	0.29	0.92
geodns.net	184,525	0.29	177,049	0.29	2.77
savvis.net	183,982	0.29	176,583	0.29	2.74
slicehost.net	170,790	0.27	161,713	0.26	4.14
gtei.net	167,654	0.27	159,022	0.26	3.96
masterhost.ru	166,149	0.26	164,177	0.27	-0.21
netart.pl	161,617	0.26	158,329	0.26	0.65
mainnameserver.com	158,171	0.25	154,281	0.25	1.09
linode.com	155,075	0.25	144,394	0.23	5.90
rz-ip.net	152,892	0.24	158,413	0.26	-4.83
msft.net	152,808	0.24	145,103	0.23	3.84
zzidc.com	150,173	0.24	135,379	0.22	9.38
lunarpages.com	143,648	0.23	142,227	0.23	-0.41
cais.com	140,051	0.22	158,990	0.26	-13.14
gnax.net	138,147	0.22	133,510	0.22	2.03
dion.ne.jp	136,935	0.22	135,068	0.22	-0.03
sparqnet.net	135,654	0.22	149,945	0.24	-10.79
pri-dns.de	134,307	0.21	129,176	0.21	2.52
fasthosts.net.uk	133,563	0.21	132,757	0.21	-0.80
burst.net	133,465	0.21	137,322	0.22	-4.16
secure.net	132,897	0.21	134,197	0.22	-2.35
gldn.net	131,981	0.21	141,514	0.23	-8.04
jump.ro	129,565	0.21	122,619	0.20	4.19
pwebtech.com	128,716	0.21	122,003	0.20	4.03
servint.com	126,406	0.20	122,329	0.20	1.89
ocn.ad.jp	123,180	0.20	120,028	0.19	1.19
carpathiahost.net	119,874	0.19	119,363	0.19	-0.97
ns01.idc.jp	119,460	0.19	118,382	0.19	-0.50
he.net	118,552	0.19	139,392	0.23	-16.14
bta.net.cn	117,615	0.19	122,507	0.20	-5.33
silkroadtechnologies.com	115,921	0.18	114,639	0.19	-0.29
fhe3rz.net	114,585	0.18	123,648	0.20	-8.62
vpls.net	113,564	0.18	116,750	0.19	-4.09
trellian.com	113,493	0.18	115,334	0.19	-2.97
westmaster.com	110,988	0.18	101,436	0.16	7.89
locaweb.com.br	110,086	0.18	106,952	0.17	1.49
tfn.net.tw	107,518	0.17	96,266	0.16	10.13
pair.com	106,945	0.17	106,423	0.17	-0.91
easpnet.com	106,725	0.17	81,961	0.13	28.40
relax.ru	106,611	0.17	116,271	0.19	-9.59
phatservers.com	106,504	0.17	159,804	0.26	-34.28
iprevolution.co.jp	106,333	0.17	101,465	0.16	3.34
uu.net	104,054	0.17	106,224	0.17	-3.41
net.ru	102,873	0.16	104,764	0.17	-3.18
datadragon.net	101,178	0.16	86,204	0.14	15.73
untd.com	100,283	0.16	98,411	0.16	0.48
confluence-networks.com	100,175	0.16	87,774	0.14	12.54
nethost.cz	99,375	0.16	95,709	0.15	2.38
lnhi.net	99,126	0.16	99,314	0.16	-1.58
yahoo.com	98,221	0.16	90,112	0.15	7.48
afrinic.net	97,577	0.16	94,830	0.15	1.46
google.com	94,904	0.15	96,460	0.16	-2.99
hbtele.com	94,425	0.15	72,876	0.12	27.76
cncnet.net	94,415	0.15	111,844	0.18	-16.76
sdjnptt.net.cn	93,858	0.15	83,392	0.13	10.98
ns1.xserver.jp	93,246	0.15	86,495	0.14	6.30
att.net	93,083	0.15	92,566	0.15	-0.84
ripn.net	93,061	0.15	90,986	0.15	0.85
usen.ad.jp	92,550	0.15	92,551	0.15	-1.40
superhosting.cz	92,449	0.15	90,892	0.15	0.29
gblx.net	92,217	0.15	105,394	0.17	-13.72
rt-comm.ru	91,095	0.15	93,172	0.15	-3.59
securedservers.com	90,377	0.14	85,291	0.14	4.48
hinet.net	89,211	0.14	86,787	0.14	1.36
flexwebhosting.nl	89,202	0.14	90,170	0.15	-2.45
uol.com.br	88,196	0.14	82,299	0.13	5.67
hichina.com	87,180	0.14	64,589	0.10	33.09
layeredtech.com	86,563	0.14	84,614	0.14	0.88
nocdirect.com	85,959	0.14	78,718	0.13	7.67
kornet.net	83,852	0.13	88,077	0.14	-6.13
ucoz.net	82,852	0.13	79,685	0.13	2.52
hc.ru	81,834	0.13	79,495	0.13	1.51
servidoresdns.net	81,469	0.13	80,957	0.13	-0.77
inetbone.net	81,096	0.13	85,704	0.14	-6.70
colo4dallas.net	80,950	0.13	67,624	0.11	18.04
qwest.net	80,647	0.13	81,232	0.13	-2.11
xs4all.nl	80,082	0.13	81,194	0.13	-2.75
dnspartner.de	79,943	0.13	79,214	0.13	-0.49
meganameservers.com	77,936	0.12	77,609	0.13	-0.98
rr.com	77,413	0.12	76,111	0.12	0.29
kei.pl	77,409	0.12	76,571	0.12	-0.32
sphere.ad.jp	77,199	0.12	76,577	0.12	-0.59
sc163.net	77,060	0.12	64,741	0.10	17.37
t-online.hu	75,407	0.12	72,450	0.12	2.63
main-hosting.com	74,959	0.12	67,605	0.11	9.33
comcastbusiness.net	74,902	0.12	73,417	0.12	0.60
netdirekt.de	74,310	0.12	78,651	0.13	-6.84
ch-meta.net	73,345	0.12	72,105	0.12	0.30
tele.dk	72,806	0.12	72,692	0.12	-1.24
tailormadeservers.com	72,769	0.12	68,361	0.11	4.96
interware.hu	72,707	0.12	74,429	0.12	-3.68
amerinoc.com	72,551	0.12	30,500	0.05	134.55
fastservers.net	70,708	0.11	71,127	0.11	-1.98
inmotionhosting.com	70,607	0.11	68,306	0.11	1.93
dynamicweb.net	69,236	0.11	68,360	0.11	-0.13
dtag.de	69,101	0.11	64,107	0.10	6.29
rain.fr	68,794	0.11	65,796	0.11	3.10
cwie.net	68,535	0.11	67,799	0.11	-0.32
spaceweb.ru	67,668	0.11	66,210	0.11	0.78
intercom.com.cn	67,383	0.11	65,563	0.11	1.34
hbwhptt.net.cn	67,082	0.11	65,538	0.11	0.93
webcontrolcenter.com	67,049	0.11	67,167	0.11	-1.57
nic.ru	66,861	0.11	65,118	0.11	1.24
twtelecom.net	66,402	0.11	65,704	0.11	-0.35
casablanca.cz	66,021	0.11	64,647	0.10	0.70
namedserver.net	65,716	0.10	64,784	0.10	0.02
skyrock.net	65,590	0.10	50,385	0.08	28.36
hananet.net	65,401	0.10	55,788	0.09	15.60
forpsi.net	64,816	0.10	64,053	0.10	-0.22
wiredtree.com	64,745	0.10	64,023	0.10	-0.28
deninet.hu	63,430	0.10	61,114	0.10	2.34
uk2.net	63,043	0.10	62,862	0.10	-1.11
gzidc.com	62,528	0.10	54,535	0.09	13.06
viawest.net	61,101	0.10	59,748	0.10	0.84
cysonet.com	60,843	0.10	69,704	0.11	-13.93
servage.net	60,767	0.10	59,947	0.10	-0.05
xl-internetservices.com	59,712	0.10	55,757	0.09	5.60
server260.com	59,532	0.09	59,060	0.10	-0.61
drive.ne.jp	59,054	0.09	57,480	0.09	1.30
sivit.org	58,863	0.09	56,940	0.09	1.93
homestead.com	58,384	0.09	52,485	0.08	9.69
gyron.net	57,895	0.09	58,005	0.09	-1.58
fdcservers.net	57,533	0.09	56,221	0.09	0.91
ctnt.com.cn	57,342	0.09	60,831	0.10	-7.05
isprime.com	57,105	0.09	57,203	0.09	-1.56
marchex.com	56,786	0.09	56,069	0.09	-0.13
colt.net	56,766	0.09	56,809	0.09	-1.47
ns1	56,676	0.09	56,304	0.09	-0.74
aspadmin.com	56,271	0.09	64,873	0.10	-14.47
take2hosting.com	55,411	0.09	53,049	0.09	3.00
voodoo.com	54,305	0.09	51,725	0.08	3.52
dn-s.nl	54,171	0.09	50,582	0.08	5.60
interlink.or.jp	53,619	0.09	43,281	0.07	22.16
as29550.net	53,198	0.08	51,750	0.08	1.36
edatahome.com	53,167	0.08	49,589	0.08	5.72
donhost.co.uk	53,104	0.08	52,090	0.08	0.52
seeweb.it	52,461	0.08	50,571	0.08	2.29
datanet.hu	52,262	0.08	51,116	0.08	0.82
dnsmadeeasy.com	52,219	0.08	49,869	0.08	3.25
nwtgigalink.com	51,842	0.08	45,059	0.07	13.45
drcnet.com.cn	51,755	0.08	61,531	0.10	-17.06
nsserve.de	51,634	0.08	50,849	0.08	0.13
singlehop.com	51,522	0.08	51,394	0.08	-1.15
eukhost.com	51,056	0.08	50,183	0.08	0.32
lambdanet.net	50,640	0.08	48,013	0.08	4.00
telia.com	50,471	0.08	43,376	0.07	14.73
midphase.com	50,377	0.08	57,809	0.09	-14.07
hoster.ru	49,564	0.08	45,564	0.07	7.26
inode.at	49,460	0.08	48,665	0.08	0.22
usiphosting.com	49,395	0.08	41,724	0.07	16.73
hispalisdns.com	49,350	0.08	47,191	0.08	3.12
in2net.com	49,263	0.08	48,558	0.08	0.04
sprintlink.net	49,237	0.08	49,599	0.08	-2.12
cattelecom.com	49,129	0.08	48,724	0.08	-0.58
keyweb.de	48,996	0.08	46,744	0.08	3.36
netbenefit.co.uk	48,615	0.08	48,154	0.08	-0.45
kidc.net	48,294	0.08	45,408	0.07	4.87
rapidswitch.com	47,998	0.08	47,565	0.08	-0.50
surf-town.net	47,657	0.08	46,927	0.08	0.14
infomaniak.ch	47,582	0.08	46,995	0.08	-0.16
mastak.ru	47,536	0.08	46,730	0.08	0.31
oversee.net	47,380	0.08	37,564	0.06	24.37
advancedhosters.com	47,248	0.08	40,808	0.07	14.17
caravan.ru	47,020	0.07	44,719	0.07	3.68
virtualxs.com	46,753	0.07	62,050	0.10	-25.70
bhpr.net	46,715	0.07	41,257	0.07	11.65
webnx.com	46,157	0.07	43,170	0.07	5.43
ahhfptt.net.cn	46,123	0.07	51,928	0.08	-12.42
hazzptt.net.cn	46,067	0.07	44,079	0.07	3.05
bt.net	45,705	0.07	45,187	0.07	-0.26
demandmedia.com	45,608	0.07	51,761	0.08	-13.12
hostpoint.ch	45,537	0.07	44,095	0.07	1.83
sinnet.com.cn	45,359	0.07	43,355	0.07	3.16
myhostcenter.com	45,323	0.07	40,517	0.07	10.30
elinuxservers.com	45,224	0.07	45,048	0.07	-1.01
pcextreme.nl	45,113	0.07	43,834	0.07	1.48
ispsystem.net	44,973	0.07	43,826	0.07	1.19
servepath.com	44,923	0.07	41,759	0.07	6.08
transip.net	44,828	0.07	43,742	0.07	1.05
cmmail.com	44,777	0.07	38,653	0.06	14.23
bezeqint.net	44,614	0.07	40,763	0.07	7.92
cpi.ad.jp	44,582	0.07	43,684	0.07	0.63
hesjptt.net.cn	44,581	0.07	43,394	0.07	1.30
loopia.se	44,524	0.07	43,527	0.07	0.86
udagdns.net	44,149	0.07	41,567	0.07	4.73
dinahosting.com	43,801	0.07	42,463	0.07	1.71
proserve.nl	43,599	0.07	39,198	0.06	9.68
ns-px.online.sh.cn	43,558	0.07	46,113	0.07	-6.86
calpop.com	43,378	0.07	35,891	0.06	19.17
tpnet.pl	43,249	0.07	42,765	0.07	-0.28
timeson.com.cn	43,193	0.07	35,665	0.06	19.42
steadfast.net	43,076	0.07	46,523	0.08	-8.70
tpt.net.cn	42,925	0.07	39,673	0.06	6.69
dialtelecom.cz	42,882	0.07	42,098	0.07	0.44
qweb.nl	42,834	0.07	41,360	0.07	2.12
sv.madame.jp	42,561	0.07	40,652	0.07	3.24
iomart.com	42,062	0.07	41,893	0.07	-1.00
live-servers.net	42,039	0.07	41,684	0.07	-0.56
gandi.net	41,549	0.07	37,300	0.06	9.84
servernap.com	41,375	0.07	40,623	0.07	0.43

* 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.