Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 61260664 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	Nov 2011 Count*	Nov 2011 %	Oct 2011 Count*	Oct 2011 %	Growth %
theplanet.com	2,186,285	3.57	2,175,486	3.57	-0.11
schlund.de	1,831,686	2.99	1,824,255	3.00	-0.20
networklayer.com	1,828,270	2.98	1,826,870	3.00	-0.53
secureserver.net	1,644,840	2.68	1,638,024	2.69	-0.19
y.dns.jp	1,522,363	2.49	1,507,536	2.48	0.38
ovh.net	1,264,025	2.06	1,330,513	2.19	-5.57
your-server.de	1,192,033	1.95	1,144,055	1.88	3.57
a.in-addr.cn	946,254	1.54	908,327	1.49	3.55
global-datacenter.com	828,679	1.35	825,201	1.36	-0.18
rackspace.com	800,535	1.31	784,926	1.29	1.37
sakura.ad.jp	781,375	1.28	748,268	1.23	3.80
lacnic.net	691,696	1.13	720,137	1.18	-4.53
bluehost.com	669,308	1.09	668,152	1.10	-0.43
softlayer.com	639,601	1.04	597,762	0.98	6.36
dreamhost.com	559,780	0.91	536,899	0.88	3.63
yourhostingaccount.com	497,112	0.81	494,894	0.81	-0.16
amazon.com	474,749	0.77	444,377	0.73	6.19
dns.kr	470,263	0.77	464,999	0.76	0.52
1and1.com	437,539	0.71	436,101	0.72	-0.27
twnic.net	433,560	0.71	443,177	0.73	-2.76
a.dns.br	430,977	0.70	460,703	0.76	-7.02
peer1.net	425,897	0.70	435,161	0.71	-2.72
ns	382,084	0.62	376,468	0.62	0.88
leaseweb.nl	376,808	0.62	402,945	0.66	-7.05
ntt.net	369,816	0.60	367,265	0.60	0.09
pnap.net	354,031	0.58	320,231	0.53	9.89
guangzhou.gd.cn	350,425	0.57	336,118	0.55	3.63
proxad.net	334,043	0.55	339,441	0.56	-2.18
zjnbptt.net.cn	328,988	0.54	347,712	0.57	-5.95
interq.or.jp	327,943	0.54	318,713	0.52	2.28
hosteurope.de	322,553	0.53	320,679	0.53	-0.02
technorail.com	320,552	0.52	326,286	0.54	-2.35
mediatemple.net	290,264	0.47	285,390	0.47	1.10
localhost	265,014	0.43	248,024	0.41	6.21
cogentco.com	259,151	0.42	220,595	0.36	16.77
b-one-dns.net	257,741	0.42	255,367	0.42	0.32
sta.net.cn	241,316	0.39	252,594	0.41	-5.04
intergenia.de	240,646	0.39	234,923	0.39	1.82
sourcedns.com	240,081	0.39	250,475	0.41	-4.73
iweb-hosting.com	239,812	0.39	232,599	0.38	2.48
level3.net	239,567	0.39	233,575	0.38	1.95
singlehop.net	236,457	0.39	228,430	0.38	2.89
namespace4you.de	229,960	0.38	237,408	0.39	-3.72
dns.fz.fj.cn	211,966	0.35	219,345	0.36	-3.95
kasserver.com	210,639	0.34	208,665	0.34	0.34
home.pl	199,929	0.33	197,564	0.32	0.59
nmc1.ptt.js.cn	197,636	0.32	195,516	0.32	0.48
servercentral.net	193,049	0.32	152,201	0.25	26.07
geodns.net	190,558	0.31	173,893	0.29	8.92
xlink.net	179,183	0.29	229,868	0.38	-22.52
yandex.ru	176,212	0.29	183,523	0.30	-4.56
masterhost.ru	172,046	0.28	166,346	0.27	2.80
savvis.net	171,603	0.28	163,648	0.27	4.23
netart.pl	157,619	0.26	160,939	0.26	-2.65
rz-ip.net	155,532	0.25	153,030	0.25	1.02
sparqnet.net	154,537	0.25	168,378	0.28	-8.77
gtei.net	153,427	0.25	148,878	0.24	2.44
dion.ne.jp	151,741	0.25	143,564	0.24	5.06
mainnameserver.com	148,186	0.24	145,836	0.24	1.00
slicehost.net	147,296	0.24	138,451	0.23	5.75
pri-dns.de	144,631	0.24	145,478	0.24	-1.18
cais.com	144,072	0.24	139,892	0.23	2.37
msft.net	142,726	0.23	137,794	0.23	2.96
lunarpages.com	141,605	0.23	141,280	0.23	-0.37
gldn.net	141,174	0.23	146,849	0.24	-4.44
phatservers.com	136,467	0.22	123,428	0.20	9.90
linode.com	135,089	0.22	126,052	0.21	6.52
secure.net	133,491	0.22	133,955	0.22	-0.95
usen.ad.jp	133,448	0.22	130,058	0.21	1.99
fasthosts.net.uk	132,075	0.22	132,236	0.22	-0.72
zzidc.com	129,152	0.21	50,525	0.08	154.08
carpathiahost.net	128,822	0.21	121,113	0.20	5.73
jump.ro	126,239	0.21	130,813	0.21	-4.08
gnax.net	126,222	0.21	124,782	0.20	0.55
gblx.net	125,992	0.21	135,928	0.22	-7.87
ocn.ad.jp	125,480	0.20	124,465	0.20	0.21
burst.net	124,377	0.20	131,048	0.22	-5.66
he.net	123,346	0.20	115,352	0.19	6.29
pwebtech.com	122,027	0.20	119,973	0.20	1.10
trellian.com	120,789	0.20	111,141	0.18	8.03
servint.com	118,669	0.19	114,189	0.19	3.30
ns01.idc.jp	117,962	0.19	111,286	0.18	5.36
relax.ru	116,164	0.19	121,831	0.20	-5.23
vpls.net	111,386	0.18	109,807	0.18	0.83
uu.net	111,385	0.18	111,000	0.18	-0.26
silkroadtechnologies.com	109,949	0.18	108,264	0.18	0.95
westmaster.com	108,478	0.18	99,341	0.16	8.54
bta.net.cn	108,036	0.18	104,019	0.17	3.24
fhe3rz.net	107,841	0.18	80,819	0.13	32.63
datadragon.net	106,448	0.17	97,175	0.16	8.88
pair.com	106,446	0.17	106,723	0.18	-0.86
tfn.net.tw	105,634	0.17	97,985	0.16	7.16
locaweb.com.br	105,347	0.17	102,560	0.17	2.10
net.ru	103,784	0.17	101,657	0.17	1.48
websitewelcome.com	100,828	0.16	88,572	0.15	13.15
lnhi.net	99,829	0.16	101,088	0.17	-1.84
cncnet.net	96,684	0.16	100,689	0.17	-4.56
iprevolution.co.jp	96,504	0.16	105,780	0.17	-9.32
untd.com	96,021	0.16	104,843	0.17	-8.97
google.com	94,489	0.15	71,098	0.12	32.10
superhosting.cz	93,226	0.15	98,907	0.16	-6.31
afrinic.net	92,752	0.15	92,647	0.15	-0.49
att.net	91,567	0.15	97,034	0.16	-6.20
nethost.cz	91,143	0.15	88,184	0.14	2.73
hbtele.com	90,153	0.15	65,902	0.11	35.98
flexwebhosting.nl	88,632	0.14	100,950	0.17	-12.73
easpnet.com	88,307	0.14	67,801	0.11	29.46
ripn.net	88,210	0.14	87,072	0.14	0.70
inetbone.net	87,399	0.14	85,583	0.14	1.51
rt-comm.ru	86,135	0.14	89,104	0.15	-3.91
hinet.net	85,935	0.14	85,525	0.14	-0.13
qwest.net	83,237	0.14	83,510	0.14	-0.93
ns1.xserver.jp	81,980	0.13	78,589	0.13	3.69
layeredtech.com	81,438	0.13	82,384	0.14	-1.74
fastservers.net	81,207	0.13	82,523	0.14	-2.19
xs4all.nl	80,706	0.13	79,508	0.13	0.90
interware.hu	80,625	0.13	80,210	0.13	-0.09
servidoresdns.net	80,624	0.13	81,035	0.13	-1.11
rr.com	79,689	0.13	81,467	0.13	-2.77
kornet.net	79,313	0.13	79,170	0.13	-0.42
dnspartner.de	78,954	0.13	78,804	0.13	-0.41
netdirekt.de	78,350	0.13	79,996	0.13	-2.65
meganameservers.com	77,514	0.13	77,419	0.13	-0.48
sdjnptt.net.cn	77,350	0.13	93,060	0.15	-17.38
ucoz.net	77,064	0.13	75,437	0.12	1.54
nocdirect.com	77,042	0.13	75,359	0.12	1.62
sphere.ad.jp	76,157	0.12	76,479	0.13	-1.02
uol.com.br	75,821	0.12	94,514	0.16	-20.26
kei.pl	75,506	0.12	74,726	0.12	0.44
dtag.de	74,166	0.12	71,627	0.12	2.92
tele.dk	73,268	0.12	73,937	0.12	-1.50
sc163.net	72,177	0.12	65,177	0.11	10.07
comcastbusiness.net	71,725	0.12	64,193	0.11	11.06
t-online.hu	71,536	0.12	71,985	0.12	-1.22
hc.ru	71,153	0.12	81,229	0.13	-12.93
main-hosting.com	70,629	0.12	67,883	0.11	3.42
yahoo.com	70,348	0.11	77,889	0.13	-10.23
ch-meta.net	69,767	0.11	68,392	0.11	1.40
rain.fr	69,048	0.11	67,208	0.11	2.12
cysonet.com	67,765	0.11	67,077	0.11	0.42
dynamicweb.net	67,728	0.11	67,409	0.11	-0.13
colo4dallas.net	67,701	0.11	67,183	0.11	0.16
webcontrolcenter.com	67,143	0.11	67,377	0.11	-0.95
inmotionhosting.com	65,560	0.11	65,086	0.11	0.12
twtelecom.net	65,471	0.11	68,358	0.11	-4.80
spaceweb.ru	65,146	0.11	64,522	0.11	0.36
intercom.com.cn	64,060	0.10	63,109	0.10	0.90
wiredtree.com	63,751	0.10	62,664	0.10	1.12
forpsi.net	63,667	0.10	63,138	0.10	0.23
nic.ru	63,396	0.10	61,900	0.10	1.80
casablanca.cz	63,360	0.10	62,679	0.10	0.48
namedserver.net	63,182	0.10	65,630	0.11	-4.31
hbwhptt.net.cn	63,101	0.10	65,557	0.11	-4.33
aspadmin.com	62,181	0.10	73,725	0.12	-16.17
deninet.hu	61,454	0.10	55,102	0.09	10.86
midphase.com	60,234	0.10	68,676	0.11	-12.82
skyrock.net	59,895	0.10	49,277	0.08	20.82
fdcservers.net	59,178	0.10	61,348	0.10	-4.12
gyron.net	58,924	0.10	57,385	0.09	2.06
servage.net	58,861	0.10	59,071	0.10	-0.96
server260.com	58,646	0.10	58,502	0.10	-0.36
securedservers.com	58,525	0.10	77,830	0.13	-25.26
ee.net	58,233	0.10	55,941	0.09	3.47
colt.net	57,154	0.09	56,880	0.09	-0.12
cwie.net	56,241	0.09	65,683	0.11	-14.89
marchex.com	55,953	0.09	55,782	0.09	-0.30
ctnt.com.cn	55,825	0.09	59,738	0.10	-7.11
drive.ne.jp	55,797	0.09	54,050	0.09	2.61
sivit.org	55,742	0.09	54,090	0.09	2.43
hichina.com	55,709	0.09	53,295	0.09	3.90
hananet.net	54,975	0.09	58,426	0.10	-6.47
isprime.com	54,719	0.09	54,150	0.09	0.44
hoster.ru	54,658	0.09	51,871	0.09	4.74
ns1	54,655	0.09	54,487	0.09	-0.30
drcnet.com.cn	54,371	0.09	50,560	0.08	6.89
uk2.net	53,914	0.09	57,631	0.09	-7.01
amerinoc.com	53,555	0.09	38,361	0.06	38.77
sprintlink.net	53,200	0.09	53,087	0.09	-0.39
xl-internetservices.com	53,031	0.09	50,192	0.08	5.02
telia.com	52,684	0.09	47,643	0.08	9.92
donhost.co.uk	52,210	0.09	52,094	0.09	-0.38
gzidc.com	51,551	0.08	50,951	0.08	0.57
ahhfptt.net.cn	51,147	0.08	57,317	0.09	-11.30
nsserve.de	50,528	0.08	50,024	0.08	0.40
as29550.net	50,443	0.08	51,223	0.08	-2.12
datanet.hu	50,280	0.08	49,620	0.08	0.72
eukhost.com	50,114	0.08	49,769	0.08	0.09
singlehop.com	50,083	0.08	49,604	0.08	0.36
uhost.ro	49,886	0.08	40,744	0.07	21.70
seeweb.it	49,375	0.08	48,840	0.08	0.49
advancedhosters.com	48,921	0.08	51,645	0.08	-5.84
usiphosting.com	48,827	0.08	41,699	0.07	16.39
cattelecom.com	48,457	0.08	47,379	0.08	1.66
in2net.com	48,410	0.08	49,236	0.08	-2.27
dnsmadeeasy.com	48,086	0.08	31,712	0.05	50.72
softonic.com	47,833	0.08	45,514	0.07	4.46
netbenefit.co.uk	47,783	0.08	47,571	0.08	-0.16
privatesystems.net	47,751	0.08	44,553	0.07	6.53
kidc.net	47,501	0.08	45,472	0.07	3.83
inode.at	47,486	0.08	45,917	0.08	2.79
take2hosting.com	47,467	0.08	56,294	0.09	-16.19
proserve.nl	47,193	0.08	42,299	0.07	10.90
voodoo.com	47,183	0.08	38,958	0.06	20.38
lambdanet.net	46,987	0.08	38,733	0.06	20.58
rapidswitch.com	46,622	0.08	46,854	0.08	-1.09
homestead.com	46,593	0.08	53,424	0.09	-13.31
infomaniak.ch	46,533	0.08	46,078	0.08	0.38
webnx.com	46,408	0.08	43,662	0.07	5.65
hesjptt.net.cn	46,370	0.08	47,710	0.08	-3.39
surf-town.net	46,242	0.08	46,367	0.08	-0.87
mastak.ru	46,142	0.08	45,808	0.08	0.12
ezzi.net	46,040	0.08	50,397	0.08	-9.20
volia.com	45,815	0.07	43,330	0.07	5.10
viawest.net	45,638	0.07	59,229	0.10	-23.41
hispalisdns.com	45,495	0.07	43,628	0.07	3.65
hazzptt.net.cn	45,197	0.07	46,841	0.08	-4.09
steadfast.net	45,080	0.07	43,958	0.07	1.94
elinuxservers.com	44,840	0.07	45,270	0.07	-1.55
bt.net	44,806	0.07	44,673	0.07	-0.31
qweb.nl	44,742	0.07	48,942	0.08	-9.13
dn-s.nl	44,534	0.07	53,815	0.09	-17.74
calpop.com	44,526	0.07	41,275	0.07	7.23
hostpoint.ch	44,275	0.07	43,823	0.07	0.42
myregisteredsite.com	44,020	0.07	39,536	0.06	10.67
virtualxs.com	43,710	0.07	58,514	0.10	-25.75
tpt.net.cn	43,518	0.07	41,457	0.07	4.34
keyweb.de	43,447	0.07	45,675	0.08	-5.45
ispsystem.net	43,447	0.07	42,221	0.07	2.28
loopia.se	43,094	0.07	42,808	0.07	0.06
transip.net	42,956	0.07	42,810	0.07	-0.26
cpi.ad.jp	42,601	0.07	41,833	0.07	1.22
edatahome.com	42,080	0.07	45,771	0.08	-8.62
iomart.com	41,532	0.07	41,315	0.07	-0.08
live-servers.net	41,442	0.07	41,926	0.07	-1.75
webazilla.com	41,434	0.07	41,233	0.07	-0.12
tpnet.pl	41,422	0.07	42,444	0.07	-3.00
dialtelecom.cz	41,357	0.07	39,491	0.06	4.09
sinnet.com.cn	41,326	0.07	40,947	0.07	0.32
pcextreme.nl	41,276	0.07	39,825	0.07	3.02
nwtgigalink.com	41,272	0.07	40,633	0.07	0.96
myhostcenter.com	41,143	0.07	41,576	0.07	-1.64
dinahosting.com	41,042	0.07	40,241	0.07	1.38
datapipe.net	41,027	0.07	46,938	0.08	-13.12
atw.hu	40,159	0.07	39,517	0.06	1.01
servepath.com	40,073	0.07	40,658	0.07	-2.03
conepuppy.com	40,073	0.07	38,613	0.06	3.16
udagdns.net	39,995	0.07	38,006	0.06	4.60
servernap.com	39,877	0.07	39,780	0.07	-0.36
interlink.or.jp	39,555	0.06	47,319	0.08	-16.91
register.it	39,479	0.06	36,772	0.06	6.72

* 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.